LTC6091

LT1210X_V01 AD | Alldatasheet

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Technical content

For more information www.linear .com/L T1210X TYPICAL APPLICATION

DESCRIPTION

High Temperature 1.0A, 35MHz Current Feedback Amplifier The LT®1210X is a current feedback amplifier with high output current and excellent large-signal characteristics. The combination of high slew rate, 1.0A output drive and ±15V operation enables the device to deliver significant power at frequencies in the 1MHz to 2MHz range. Short- circuit protection ensures the device’s ruggedness. The LT1210X is stable with large capacitive loads, and can easily supply the large currents required by the capaci- tive loading. A shutdown feature switches the device into a high impedance and low supply current mode, reducing dissipation when the device is not in use. For lower bandwidth applications, the supply current can be reduced with a single external resistor. The LT1210X is a member of a growing series of high temperature qualified products offered by Analog Devices. For a complete selection of high temperature products, please consult our website www.linear .com The LT1210X is available in the thermally enhanced TSSOP16-E package for operation with supplies from ±5V up to ± 15V. The LT1210X is also available as dice. T wisted Pair Driver All registered trademarks and trademarks are the property of their respective owners.

FEATURES

APPLICATIONS

nExtreme High Temperature Operation: –40°C to 175°C n1.0A Minimum Output Drive Current n35MHz Bandwidth, AV = 2, RL = 10/uni03A9 n900V/µs Slew Rate, AV = 2, RL = 10/uni03A9 nHigh Input Impedance: 10M/uni03A9 nWide Supply Range: ± 5V to ±15V nShutdown Mode: IS < 200µA nAdjustable Supply Current nStable with CL = 10,000pF nAvailable as Dice nAvailable in 16-Lead Thermally Enhanced TSSOP Package nDown-Hole Drilling and Instrumentation nHeavy Industrial nAvionics nHigh Temperature Environments nCable Drivers nBuffers nTest Equipment Amplifiers nVideo Amplifiers nADSL Drivers Total Harmonic Distortion vs Frequency LT1210X VIN 4.7µF 4.7µF 100nF 1210X TA01 RT 11/uni03A9 2.5W T1 845/uni03A9 3 1 274/uni03A9 100nF SD 15V –15V MIDCOM 671-7783 OR EQUIVALENT RL 100/uni03A9 2.5W FREQUENCY (Hz) TOTAL HARMONIC DISTORTION (dB) –50 –60 –70 –80 –90 –100 10k 100k 1M 1210X TA02 VS = ±15V VOUT = 20VP-P AV = 4 RL = 10/uni03A9 RL = 50/uni03A9 RL = 12.5/uni03A9

For more information www.linear .com/L T1210X ABSOLUTE MAXIMUM RATINGS Output Short-Circuit Duration Operating Temperature Range (Note 1) FE PACKAGE 16-LEAD PLASTIC TSSOP TOP VIEW V NC OUT NC NC –IN NC V NC V COMP SHUTDOWN +IN NC V θJA = 45°C/W , θJC(PAD) = 10°C/W EXPOSED PAD (PIN 17) IS V+. MUST BE SOLDERED TO LARGE COPPER PLANE ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the full operating temperature range of –40°C to 175°C, otherwise specifications are at TA = 25°C. VCM = 0V , ± 5V ≤ VS ≤ ± 15V, pulse tested, VSD = 0V , unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage l ± 3 ±15 ±20 mV mV Input Offset Voltage Drift l 10 µV/°C IIN+ Noninverting Input Current l ± 2 ±5 ±20 µA µA I IN– Inverting Input Current l ±10 ±60 ±100 µA µA e n Input Noise Voltage Density f = 10kHz, RF = 1k/uni03A9, RG = 10/uni03A9, RS = 0/uni03A9 3.0 nV/√Hz +in Input Noise Current Density f = 10kHz, RF = 1k/uni03A9, RG = 10/uni03A9, RS = 10k/uni03A9 2.0 pA/√Hz –in Input Noise Current Density f = 10kHz, RF = 1k/uni03A9, RG = 10/uni03A9, RS = 10k/uni03A9 40 pA/√Hz RIN Input Resistance VIN = ±12V, VS = ±15V VIN = ±2V, VS = ±5V l l 1.50 0.25 MΩ MΩ C IN Input Capacitance VS = ±15V 2 pF Input Voltage Range VS = ±15V VS = ± 5V l l ±12 ±13.5 ±3.5 V V PIN CONFIGURATION TUBE TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE LT1210XFE#PBF LT1210XFE#TRPBF 1210XFE 16-Lead Plastic TSSOP –40°C to 175°C For more information on lead free part marking, go to: http://www.linear .com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear .com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. ORDER INFORMATION http://www.linear.com/product/LT1210X#orderinfo

For more information www.linear .com/L T1210X ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the full operating temperature range of –40°C to 175°C, otherwise specifications are at TA = 25°C. VCM = 0V , ± 5V ≤ VS ≤ ± 15V, pulse tested, VSD = 0V , unless otherwise noted. Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: A heat sink may be required to keep the junction temperature below the Absolute Maximum rating. Applies to short circuits to ground only. A short circuit between the output and either supply may permanently damage the part when operated on supplies greater than ± 10V. Note 3: R SD is connected between the Shutdown pin and ground. Note 4: Slew rate is measured at ±5V on a ±10V output signal while operating on ±15V supplies with R F = 1.5kΩ, R G = 1.5kΩ and R L = 400/uni03A9. Note 5: NTSC composite video with an output level of 2V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS CMRR Common Mode Rejection Ratio V S = ± 15V , VCM = ±12V VS = ±5V , VCM = ±2V l l dB dB Inverting Input Current Common Mode Rejection V S = ± 15V , VCM = ±12V VS = ± 5V , VCM = ±2V l l 0.1 0.1 µA/V µA/V PSRR Power Supply Rejection Ratio V S = ± 5V to ±15V l 60 77 dB Noninverting Input Current Power Supply Rejection VS = ± 5V to ±15V l 30 500 nA/V Inverting Input Current Power Supply Rejection VS = ± 5V to ±15V l 0.7 5 µA/V AV Large-Signal Voltage Gain TA = 25°C, VS = ± 15V , VOUT = ±10V , RL = 10/uni03A9 55 71 dB VS = ± 15V , VOUT = ±5.5V , RL = 10/uni03A9 l 45 68 dB VS = ±5V , VOUT = ±2V , RL = 10/uni03A9 l 55 68 dB ROL T ransresistance, ∆VOUT/∆IIN– TA = 25°C, VS = ± 15V , VOUT = ±10V , RL = 10/uni03A9 100 260 kΩ VS = ± 15V , VOUT = ±5.5V , RL = 10/uni03A9 l 24 200 kΩ VS = ±5V , VOUT = ±2V , RL = 10/uni03A9 l 75 200 kΩ VOUT Maximum Output Voltage Swing T A = 25°C, VS = ± 15V , RL = 10/uni03A9 l ±10.0 ±8.5 ±11.5 V V TA = 25°C, VS = ± 5V , RL = 10/uni03A9 l ±2.5 ±2.0 ±3.0 V V I OUT Maximum Output Current VS = ± 15V , RL = 1/uni03A9 l 1.0 2.0 A IS Supply Current TA = 25°C, VS = ±15V, VSD = 0V l 35 50 mA mA Supply Current, R SD = 51k (Note 3) T A = 25°C, VS = ±15V 15 30 mA Positive Supply Current, Shutdown V S = ± 15V , VSD = 15V l 200 µA Output Leakage Current, Shutdown V S = ± 15V , VSD = 15V l 10 µA SR Slew Rate (Note 4) TA = 25°C, AV = 2, RL = 400/uni03A9 TA = 25°C, AV = 2, RL = 10/uni03A9 400 900 900 V/µs V/µs Differential Gain (Note 5) V S = ±15V , RF = 750/uni03A9, RG = 750/uni03A9, RL = 15/uni03A9 0.3 % Differential Phase (Note 5) VS = ±15V , RF = 750/uni03A9, RG = 750/uni03A9, RL = 15/uni03A9 0.1 DEG BW Small-Signal Bandwidth AV = 2, VS = ±15V , Peaking ≤ 1dB, RF = RG = 680/uni03A9, RL = 100/uni03A9

55 MHz

AV = 2, VS = ± 15V , Peaking ≤ 1dB, RF = RG = 576/uni03A9, RL = 10/uni03A9

35 MHz

For more information www.linear .com/L T1210X SMALL-SIGNAL BANDWIDTH RSD = 0/uni03A9, IS = 30mA, VS = ± 5V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 549 590 619 549 590 619 52.5 39.7 26.5 1 150 604 649 619 53.5 39.7 27.4 2 150 562 590 576 562 590 576 51.8 38.8 27.4 10 150 392 383 215 43.2 42.2 23.7 48.4 40.3 36.0 RSD = 0/uni03A9, IS = 35mA, VS = ± 15V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 604 649 665 604 649 665 66.2 48.4 46.5 1 150 750 866 845 56.8 35.4 24.7 2 150 665 715 576 665 715 576 52.5 38.9 35.0 10 150 453 432 221 49.9 47.5 24.3 61.5 43.1 45.5 RSD = 7.5k/uni03A9, IS = 15mA, VS = ± 5V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 562 619 604 562 619 604 39.7 28.9 20.5 1 150 634 681 649 41.9 29.7 20.7 2 150 576 604 576 576 604 576 40.2 29.6 21.6 10 150 324 324 210 35.7 35.7 23.2 39.5 32.3 27.7 RSD = 47.5k/uni03A9, IS = 18mA, VS = ± 15V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 619 698 698 619 698 698 47.8 32.3 22.2 1 150 732 806 768 51.4 33.9 22.5 2 150 634 698 681 634 698 681 48.4 33.0 22.5 10 150 348 357 205 38.3 39.2 22.6 46.8 36.7 31.3 RSD = 15k/uni03A9, IS = 7.5mA, VS = ± 5V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 536 549 464 536 549 464 28.2 20.0 15.0 1 150 619 634 511 28.6 19.8 14.9 2 150 536 549 412 536 549 412 28.3 19.9 15.7 10 150 150 118 100 16.5 13.0 11.0 31.5 27.1 19.4 RSD = 82.5k/uni03A9, IS = 9mA, VS = ± 15V , Peaking ≤ 1dB AV RL (/uni03A9) RF (/uni03A9) RG (/uni03A9) – 3dB BW (MHz) – 1 150 590 649 576 590 649 576 34.8 22.5 16.3 1 150 715 768 649 35.5 22.5 16.1 2 150 590 665 549 590 665 549 35.3 22.5 16.8 10 150 182 182 100 20.0 20.0 11.0 37.2 28.9 22.5

For more information www.linear .com/L T1210X TYPICAL PERFORMANCE CHARACTERISTICS Bandwidth vs Supply Voltage Bandwidth vs Supply Voltage Differential Phase vs Supply Voltage Differential Gain vs Supply Voltage Spot Noise Voltage and Current vs Frequency Bandwidth vs Supply Voltage Bandwidth vs Supply Voltage Bandwidth and Feedback Resistance vs Capacitive Load for Peaking ≤ 1dB Bandwidth and Feedback Resistance vs Capacitive Load for Peaking ≤ 5dB 100 8 12 6 10 14 16 18 SUPPLY VOLTAGE (±V) –3dB BANDWIDTH (MHz) 1210X G01 PEAKING ≤ 1dB PEAKING ≤ 5dB RF = 470/uni03A9 RF = 560/uni03A9 RF = 750/uni03A9 RF = 1kΩ RF = 1.5kΩ AV = 2 RL = 100/uni03A9 RF = 680/uni03A9 8 12 6 10 14 16 18 SUPPLY VOLTAGE (±V) –3dB BANDWIDTH (MHz) 1210X G02 PEAKING ≤ 1dB PEAKING ≤ 5dB RF = 560/uni03A9 RF = 1k/uni03A9 RF = 2k/uni03A9 RF = 750/uni03A9 AV = 2 RL = 10/uni03A9 CAPACITIVE LOAD (pF)

100 FEEDBACK RESISTANCE (/uni03A9)

AV = 2 RL = ∞ VS = ±15V CCOMP = 0.01µF 100 –3dB BANDWIDTH (MHz) 100 8 12 6 10 14 16 18 SUPPLY VOLTAGE (±V) –3dB BANDWIDTH (MHz) 1210X G04 PEAKING ≤ 1dB PEAKING ≤ 5dB RF = 470/uni03A9 RF = 1.5k/uni03A9 RF = 330/uni03A9 RF = 680/uni03A9 RF =390/uni03A9 AV = 10 RL = 100/uni03A9 8 12 6 10 14 16 18 SUPPLY VOLTAGE (±V) –3dB BANDWIDTH (MHz) 1210X G05 PEAKING ≤ 1dB RF = 560/uni03A9 RF = 1k/uni03A9 RF = 1.5k/uni03A9 AV = 10 RL = 10/uni03A9 RF = 680/uni03A9 CAPACITIVE LOAD (pF) FEEDBACK RESISTANCE (/uni03A9) 1210X G06 10 100 1000 10000 –3dB BANDWIDTH (MHz) 10k 0 100 100 FEEDBACK RESISTANCE BANDWIDTH AV = +2 RL = ∞ VS = ±15V CCOMP = 0.01µF SUPPLY VOLTAGE (±V) DIFFERENTIAL PHASE (DEG) 0.6 0.5 0.4 0.3 0.2 0.1 1210X G07 7 9 11 15 RF = RG = 750/uni03A9 AV = 2 RL = 10/uni03A9 RL = 50/uni03A9 RL = 15/uni03A9 RL = 30/uni03A9 SUPPLY VOLTAGE (±V) DIFFERENTIAL GAIN (%) 0.5 0.4 0.3 0.2 0.1 1210X G08 7 9 11 15 RF = RG = 750/uni03A9 AV = 2 RL = 10/uni03A9 RL = 15/uni03A9 RL = 30/uni03A9RL = 50/uni03A9 FREQUENCY (Hz) 100 100 100k 1210X G09 1k 10k SPOT NOISE (nV/√Hz OR pA/√Hz) en –in +in

For more information www.linear .com/L T1210X TYPICAL PERFORMANCE CHARACTERISTICS Supply Current vs Shutdown Pin Current Input Common Mode Limit High vs Junction Temperature Output Short-Circuit Current vs Junction Temperature Input Common Mode Limit Low vs Junction Temperature Output Saturation Voltage vs Junction Temperature (Output Low) Output Saturation Voltage vs Junction Temperature (Output High) Supply Current vs Supply Voltage Supply Current vs Ambient Temperature, V S = ± 5V Supply Current vs Ambient Temperature, V S = ±15V TA = 175°C TA = 125°C TA = 85°C TA = 25°C TA = –40°C RSD = 0Ω SUPPL Y VOL TAGE (±V) 4 6 8 10 12 14 16 18 SUPPL Y CURRENT (mA) 1210X G10 RSD = 0Ω RSD = 7.5k/uni03A9 RSD = 15k/uni03A9 AV = 1 RL = No Load TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 SUPPL Y CURRENT (mA) 1210X G11 RSD = 0Ω RSD = 47.5k/uni03A9 RSD = 82.5k/uni03A9 AV = 1 RL = No Load TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 SUPPL Y CURRENT (mA) 1210X G12 SHUTDOWN PIN CURRENT (µA) SUPPLY CURRENT (mA) 400 1210X G13 100 200 300 500 VS = ±15V VS = ±15V MEASURED FROM V+ TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 –2.0 –1.6 –1.2 –0.8 –0.4 0.0 COMMON MODE RANGE (V) 1210X G14A SOURCING SINKING TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0 OUTPUT SHORT–CIRCUIT CURRENT (A) 1210X G16 VS = ±15V MEASURED FROM V– RL = 10Ω RL = 2k/uni03A9 TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 OUTPUT SATURATION VOL TAGE (V) 1210X G17 VS = ±15V MEASURED FROM V– TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 0.4 0.8 1.2 1.6 2.0 COMMON MODE RANGE (V) 1210X G15 VS = ±15V MEASURED FROM V+ RL = 2k/uni03A9 RL = 10Ω TEMPERATURE (°C) –50 –25 0 25 50 75 100 125 150 175 –6.0 –5.0 –4.0 –3.0 –2.0 –1.0 OUTPUT SATURATION VOL TAGE (V) 1210X G18

For more information www.linear .com/L T1210X Power Supply Rejection Ratio vs Frequency Supply Current vs Large-Signal Output Frequency (No Load) FREQUENCY (Hz) POWER SUPPLY REJECTION (dB) 10k 1M 10M 100M 1210X G19 100k RL = 50/uni03A9 VS = ±15V RF = RG = 1k/uni03A9NEGATIVE POSITIVE FREQUENCY (Hz) 10k SUPPLY CURRENT (mA) 100 100k 1M 10M 1210X G20 AV = 2 RL = ∞ VS = ±15V VOUT = 20VP-P TYPICAL PERFORMANCE CHARACTERISTICS 3rd Order Intercept vs Frequency Test Circuit for 3rd Order Intercept Output Impedance vs Frequency Output Impedance in Shutdown vs Frequency Large-Signal Voltage Gain vs Frequency FREQUENCY (Hz) OUTPUT IMPEDANCE (/uni03A9) 100 0.1 0.01 100k 10M 100M 1210X G21 VS = ±15V IO = 0mA RSD = 82.5k/uni03A9 RSD = 0/uni03A9 FREQUENCY (Hz) OUTPUT IMPEDANCE (/uni03A9) 10k 100 100k 10M 100M 1210X G22 FREQUENCY (Hz) LARGE-SIGNAL VOLTAGE GAIN (dB) 3 105 107 1210X G23 104 106 108 AV = 4, RL = 10/uni03A9 RF = 680/uni03A9, RG = 220/uni03A9 VS = ±15V, VIN = 5VP-P FREQUENCY (MHz) 3RD ORDER INTERCEPT (dBm) 2 4 6 8 1210X G22 VS = ±15V RL = 10/uni03A9 RF = 680/uni03A9 RG = 220/uni03A9 10/uni03A9 LT1210X 1210X TC01 220/uni03A9 680/uni03A9 PO MEASURE INTERCEPT AT PO

For more information www.linear .com/L T1210X APPLICATIONS INFORMATION PIN FUNCTIONS The LT1210X is a current feedback amplifier with high output current drive capability. The device is stable with large capacitive loads and can easily supply the high cur- rents required by capacitive loads. The amplifier will drive low impedance loads such as cables with excellent linear- ity at high frequencies. Feedback Resistor Selection The optimum value for the feedback resistors is a function of the operating conditions of the device, the load imped- ance and the desired flatness of response. The Typical AC Performance tables give the values which result in less than 1dB of peaking for various resistive loads and oper- ating conditions. If this level of flatness is not required, a higher bandwidth can be obtained by use of a lower feedback resistor . The characteristic curves of Bandwidth vs Supply Voltage indicate feedback resistors for peak - ing up to 5dB. These curves use a solid line when the response has less than 1dB of peaking and a dashed line when the response has 1dB to 5dB of peaking. The curves stop where the response has more than 5dB of peaking. For resistive loads, the COMP pin should be left open (see Capacitive Loads section). V+ (Pins 1, 8, 9, 16, 17): Positive Supply Voltage. V+ and V– must be chosen so that 10V ≤ (V+ – V–) < 36V. NC (Pins 2, 4, 5, 7, 10, 15): No Connection. These pins are floating, with no internal connection. OUT (Pin 3): Amplifier Output. The output can source/sink a minimum of 1A over temperature. -IN (Pin 6): Inverting Input of Amplifier . Valid input range is ±12V on ±15V supplies. +IN (Pin 11): Non-Inverting Input of Amplifier . Valid input range is ±12V on ±15V supplies. SHUTDOWN (Pin 12): If the shutdown feature is not used, the SHUTDOWN pin must be connected to Ground or V–. The SHUTDOWN pin can be used to either turn off the biasing for the amplifier , reducing the quiescent current to less than 200/uni03BCA, or to control the quiescent current in normal operation. For more information, refer to the Shutdown/Current Set section in the Applications Information. COMP (Pin 13): Adding a 0.01µF capacitor between the output and the COMP pin greatly reduces peaking when driving capacitive loads. To disconnect the optional com- pensation, leave the COMP pin open. For more infor - mation, refer to the Capacitive Loads section in the Applications Information. V– (Pin 14): Negative Supply Voltage. V+ and V– must be chosen so that 10V ≤ (V+ – V–) < 36V. Capacitive Loads The LT1210X includes an optional compensation network for driving capacitive loads. This network eliminates most of the output stage peaking associated with capacitive loads, allowing the frequency response to be flattened. Figure 1 shows the effect of the network on a 200pF load. Without the optional compensation, there is a 6dB peak at 40MHz caused by the effect of the capacitance on the output stage. Adding a 0.01µF bypass capacitor between the output and the COMP pins connects the compensation and greatly reduces the peaking. A lower value feedback resistor can now be used, resulting in a response which is flat to ± 1dB to 40MHz. The network has the greatest effect for C L in the range of 0pF to 1000pF. The graphs of Bandwidth and Feedback Resistance vs Capacitive Load can be used to select the appropriate value of feedback resistor . The values shown are for 1dB and 5dB peaking at a gain of 2 with no resistive load. This is a worst-case con- dition, as the amplifier is more stable at higher gains and with some resistive load in parallel with the capacitance. Also shown is the – 3dB bandwidth with the suggested feedback resistor vs the load capacitance.

available output current can limit the overall slew rate. an ESD protection device connected between the inputs. than ±5V when the device is shut down. from the output to the inverting input for stable operation. it does not degrade the stability of the amplifier. change is less than 0.5µA per volt. above 100kHz, use 1µF and 100nF ceramic capacitors. mended in place of the 1µF unit mentioned above. Figure 6. Large-Signal Response, CL = 10,000pF

For more information www.linear .com/L T1210X APPLICATIONS INFORMATION resistance between the layer is small. Copper board stiff- eners and plated through holes can also be used to spread the heat generated by the device. Power Dissipation and Thermal Considerations In order to avoid damaging the device, the absolute maxi- mum junction temperature of the LT1210X should not be exceeded. At 35mA of quiescent supply current on ±15V supplies, the LT1210X will consume approximately 1.05W. In general, the die’s junction temperature (TJ) can be esti- mated from the ambient temperature T A, and the power dissipated in the device PD: T J = TA + PD • (θJC + θCA) θJC is the junction-to-case thermal resistance and is char- acterized to be approximately 10°C/W . θCA is the case-to- ambient thermal resistance and depends on circuit board layout, air flow and proximity to other sources of heat. The power dissipated in the IC is a function of supply voltage and the load being driven. Assuming split supplies, and a resistive load, the worst-case power dissipation P D(MAX) occurs when the output is driving the load to half of either supply voltage. PD(MAX) , then is the sum of the quiescent power plus the power dissipated in the device due to the load with symmetric supply: P D(MAX) (Per Amplifier) = (VS • IS) + (VS/4)2/RLOAD (IS is the quiescent supply current for the amplifier and VS is the total supply voltage measured between the supplies) For example, the theoretical peak power dissipation in the LT1210X application seen in Figure 7, driving 10/uni03A9 to ground with a ±15V supply (V S = 30V) would be: Although this power dissipation is far too high for contin- uous operation, there is hope. The application in Figure 7 is for a ± 2V sinusoidal swing at the output, so we can reduce the power supplies from ±15V to ±5V. Peak power dissipation would then be much more reasonable: The exposed pad under the LT1210X is the primary con- duit for conducting heat out of the package. Junction-to- ambient thermal resistance is strongly influenced by the number of PCB thermal vias below the exposed pad, the size of the thermal plane connected to these thermal vias, PCB thickness, air-flow, and proximity of other sources of heat. To minimize the amount of temperature rise within the package, the exposed pad must be soldered down to the PCB with multiple thermal vias tied to a thermal plane. For a 4-layer PCB with the exposed pad of the LT1210X soldered to a land pattern containing eight 10mil diam - eter thermal vias which are connected to two 2 inch by 2 inch V – thermal/power planes, the junction-to-ambient thermal resistance may be as low as 38°C/W in still air . If the density of the PCB layout makes such large thermal planes impractical, Table 1 lists the thermal performance achieved of alternative layout examples. A minimally sized single layer thermal land under the device as shown in column D of Table 1 will result in a junction-to-ambient thermal resistance approaching 115°C /W . Since the LT1210X will dissipate 1.05W on ±15V supplies, there will be approximately 121°C of junction-to-ambient tem- perature rise due to the device operation alone. This will then limit the specified ambient temperature range of the LT1210X can operate and/or will limit the load driven to prevent junction temperatures from exceeding T JMAX (200°C). Figure 7 LT1210XSD 15V –15V 680Ω220Ω 10Ω 2VVO VO = 1.4VRMS 1210X F07 –2V

taken to not exceed a junction temperature of 200°C. Large amounts of thermal plane area should be used. Table 1. Thermal Resistance vs PCB Thermal Plane Area mum ambient temperature can be increased substantially. with a maximum junction temperature of 200°C.

For more information www.linear .com/L T1210X TYPICAL APPLICATIONS CMOS Logic to Shutdown Interface LT1210X SD –15V 15V 24k/uni03A9 10k/uni03A9 2N3904 1210X TA04 Distribution Amplifier Buffer AV = 1 LT1210X SD 75/uni03A9 VIN RF RG 75/uni03A9 75/uni03A9 75/uni03A9 75/uni03A9 75/uni03A9 CABLE 1210X TA05 LT1210X SD 0.01µF* VOUT RF** VIN 1210X TA06 * OPTIONAL, USE WITH CAPACITIVE LOADS ** VALUE OF R F DEPENDS ON SUPPLY VOLTAGE AND LOADING. SELECT FROM TYPICAL AC PERFORMANCE TABLE OR DETERMINE EMPIRICALLY COMP

For more information www.linear .com/L T1210X SIMPLIFIED SCHEMATIC 1210X SS OUTPUT 50/uni03A9 CC RC COMP–IN+IN SHUTDOWN 1.25k/uni03A9 TO ALL CURRENT SOURCES Q11 Q15 Q1Q18 Q17 Q12 Q16 Q14 Q13 Q10

For more information www.linear .com/L T1210X PACKAGE DESCRIPTION Please refer to http://www.linear .com/product/LT1210X#packaging for the most recent package drawings. FE16 (BB) TSSOP REV L 1216 0.09 – 0.20 (.0035 – .0079) 0° – 8° 0.25 REF 0.50 – 0.75 (.020 – .030) 4.30 – 4.50* (.169 – .177) 1 3 4 5 6 7 8 10 9 4.90 – 5.10* (.193 – .201) 16 1514 13 12 11 1.10 (.0433) MAX 0.05 – 0.15 (.002 – .006) 0.65 (.0256) BSC 2.94 ±0.15 (.116 ±.006) 0.195 – 0.30 (.0077 – .0118) TYP 2RECOMMENDED SOLDER PAD LAYOUT 0.45 ±0.050.65 BSC 4.50 ±0.10 6.60 ±0.10 1.05 ±0.10 2.94 (.116) 3.05 (.120) 3.70 ±0.15 (.146 ±.006) 3.70 (.146) 4.70 (.185) MILLIMETERS (INCHES) NOTE: 1. CONTROLLING DIMENSION: MILLIMETERS 2. DIMENSIONS ARE IN 3. DRAWING NOT TO SCALE 4. RECOMMENDED MINIMUM PCB METAL SIZE FOR EXPOSED PAD ATTACHMENT SEE NOTE 4 NOTE 5 NOTE 5 6.40 ±0.15 (.252 ±.006) 16-Lead Plastic TSSOP (4.4mm) (Reference LTC DWG # 05-08-1663 Rev L) Exposed Pad Variation BB 5. BOTTOM EXPOSED PADDLE MAY HAVE METAL PROTRUSION IN THIS AREA. THIS REGION MUST BE FREE OF ANY EXPOSED TRACES OR VIAS ON PCB LAYOUT *DIMENSIONS DO NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.150mm (.006") PER SIDE DETAIL A DETAIL A IS THE PART OF THE LEAD FRAME FEATURE FOR REFERENCE ONLY NO MEASUREMENT PURPOSE 0.56 (.022) REF 0.53 (.021) REF DETAIL A 16-Lead Plastic TSSOP (4.4mm) (Reference L TC DWG # 05-08-1663 Rev L) Exposed Pad Variation BB

For more information www.linear .com/L T1210X Information furnished by Analog Devices is believed to be accurate and reliable. However , no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

REVISION HISTORY

REV DATE DESCRIPTION PAGE NUMBER A 02/18 Created new temp grade version of LT1210 Series 1 to 18

For more information www.linear .com/L T1210X  ANALOG DEVICES, INC. 2017 LT 0218 REV A • PRINTED IN USA www.linear.com/LT1210X RELATED PARTS TYPICAL APPLICATION PART NUMBER DESCRIPTION COMMENTS LT1010 Fast ±150mA Power Buffer 20MHz Bandwidth, 75V/µs Slew Rate LT1166 Power Output Stage Automatic Bias System Sets Class AB Bias Currents for High Voltage/High Power Output Stages LT1206 Single 250mA, 60MHz Current Feedback Amplifier Shutdown Function, Stable with CL = 10,000pF, 900V/µs Slew Rate LT1207 Dual 250mA, 60MHz Current Feedback Amplifier Dual Version of LT1206 LT1227 Single 140MHz Current Feedback Amplifier Shutdown Function, 1100V/µs Slew Rate LT1360 Single 50MHz, 800V/µs Op Amp Voltage Feedback, Stable with CL = 10,000pF LT1363 Single 70MHz, 1000V/µs Op Amp Voltage Feedback, Stable with CL = 10,000pF LTC6090/ LTC6090-5 140V Operational Amplifier 50pA I B, 1.6mV VOS, 9.5V to 140V VS, 4.5µA IS RR Output LTC6091 140V Operational Amplifier 50pA IB, 1.6mV VOS, 9.5V to 140V VS, 4.5µA IS RR Output LT6203X High Temperature 175°C Dual 100MHz Op Amp 100MHz, RRIO, 1.9nV/√Hz, 2.5µA Wideband 9W Bridge Amplifier Frequency Response LT1210X SD 10nF T1* RL 50/uni03A9 PO 680/uni03A9 220/uni03A9 100nF 910/uni03A9 * COILTRONICS Versa-Pac™ CTX-01-13033-X2 OR EQUIVALENT –15V –15V 15V 15V INPUT P-P 1210X TA07 LT1210X SD 10nF FREQUENCY (Hz) GAIN (dB) 10k 1M 10M 100M 1210X TA08 100k