LT1207

LT1207 - Dual 250mA/60MHz Current Feedback Amplifier

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• Manufacturer or author: Linear Technology Corporation
• PDF pages: 16

Technical content

Current Feedback Amplifier SFEATURE n 250mA Minimum Output Drive Current n 60MHz Bandwidth, AV = 2, RL = 100Ω n 900V/µs Slew Rate, AV = 2, RL = 50Ω n 0.02% Differential Gain, AV = 2, RL = 30Ω n 0.17° Differential Phase, AV = 2, RL = 30Ω n High Input Impedance: 10MΩ n Shutdown Mode: IS < 200µA per Amplifier n Stable with CL = 10,000pF APPLICATIO SU n ADSL/HDSL Drivers n Video Amplifiers n Cable Drivers n RGB Amplifiers n Test Equipment Amplifiers n Buffers The LT®1207 is a dual version of the LT1206 high speed current feedback amplifier. Like the LT1206, each CFA in the dual has excellent video characteristics: 60MHz band- width, 250mA minimum output drive current, 400V/ µs minimum slew rate, low differential gain (0.02% typ) and low differential phase (0.17° typ). The LT1207 includes a pin for an optional compensation network which stabi- lizes the amplifier for heavy capacitive loads. Both ampli- fiers have thermal and current limit circuits which protect against fault conditions. These capabilities make the LT1207 well suited for driving difficult loads such as cables in video or digital communication systems. Operation is fully specified from ±5V to ±15V supplies. Supply current is typically 20mA per amplifier. Two micropower shutdown controls place each amplifier in a high impedance low current mode, dropping supply current to 200µA per amplifier. For reduced bandwidth applications, supply current can be lowered by adding a resistor in series with the Shutdown pin. The LT1207 is manufactured on Linear Technology's complementary bipolar process and is available in a low thermal resistance 16-lead SO package. , LTC and LT are registered trademarks of Linear Technology Corporation. TYPICAL APPLICATIONU D UESCRIPTIO HDSL Driver 1/2 LT1207 240Ω 720Ω 720Ω 720Ω 15k 15k VIN 0.1µF* 2.2µF** +0.1µF* 2.2µF** –5V 62Ω 62Ω 1207 • TA01 1/2 LT1207 SHDN A SHDN B CERAMIC TANTALUM L1 = TRANSPOWER SMPT–308 OR SIMILAR DEVICE

A UGWA WU WARBSOLUTEX I T I S WU UPACKAGE/ORDER I FOR ATIO ORDER PART NUMBER LT1207CS Consult factory for Industrial and Military grade parts. θJA = 40°C/W (NOTE 3) VCM = 0, ± 5V ≤ VS ≤ ± 15V, pulse tested, VSHDN A = 0V, VSHDN B = 0V, unless otherwise noted.

ELECTRICAL CHARACTERISTICS

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage T A = 25°C ± 3 ±10 mV l ±15 mV Input Offset Voltage Drift l 10 µV/°C IIN+ Noninverting Input Current T A = 25°C ± 2 ± 5 µA l ±20 µA IIN– Inverting Input Current T A = 25°C ±10 ±60 µA l ±100 µA en Input Noise Voltage Density f = 10kHz, R F = 1k, RG = 10Ω , RS = 0Ω 3.6 nV/ √Hz +in Input Noise Current Density f = 10kHz, R F = 1k, RG = 10Ω , RS = 10k 2 pA/ √Hz –i n Input Noise Current Density f = 10kHz, R F = 1k, RG = 10Ω , RS = 10k 30 pA/ √Hz RIN Input Resistance V IN = ±12V, VS = ±15V l 1.5 10 M Ω VIN = ±2V, VS = ±5V l 0.5 5 M Ω CIN Input Capacitance V S = ±15V 2 pF Input Voltage Range V S = ±15V l ±12 ±13.5 V VS = ±5V l ± 2 ±3.5 V CMRR Common Mode Rejection Ratio V S = ±15V, VCM = ±12V l 55 62 dB VS = ±5V, VCM = ±2V l 50 60 dB Inverting Input Current V S = ±15V, VCM = ±12V l 0.1 10 µA/V Common Mode Rejection V S = ±5V, VCM = ±2V l 0.1 10 µA/V PSRR Power Supply Rejection Ratio V S = ±5V to ±15V l 60 77 dB TOP VIEW S PACKAGE 16-LEAD PLASTIC SO –IN A +IN A SHDN A –IN B +IN B SHDN B V OUT A V – A COMP A OUT B V – B COMP B V

VCM = 0, ± 5V ≤ VS ≤ ±15V, pulse tested, VSHDN A = 0V, VSHDN B = 0V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Noninverting Input Current V S = ±5V to ±15V l 30 500 nA/V Power Supply Rejection Inverting Input Current V S = ±5V to ±15V l 0.7 5 µA/V Power Supply Rejection AV Large-Signal Voltage Gain V S = ±15V, VOUT = ± 10V, RL = 50Ω l 55 71 dB VS = ±5V, VOUT = ±2V, RL = 25Ω l 55 68 dB ROL Transresistance, ΔVOUT/ΔIIN– VS = ±15V, VOUT = ± 10V, RL = 50Ω l 100 260 k Ω VS = ±5V, VOUT = ±2V, RL = 25Ω l 75 200 k Ω VOUT Maximum Output Voltage Swing V S = ±15V, RL = 50Ω , TA = 25°C ± 11.5 ±12.5 V l ± 10.0 V l ±2.0 V IOUT Maximum Output Current R L = 1Ω l 250 500 1200 mA IS Supply Current per Amplifier V S = ±15V, VSHDN = 0V, TA = 25°C2 0 3 0 m A l 35 mA Supply Current per Amplifier, V S = ±15V, TA = 25°C1 2 1 7 m A RSHDN = 51k (Note 4) Positive Supply Current V S = ±15V, VSHDN A = 15V, VSHDN B = 15V l 200 µA per Amplifier, Shutdown Output Leakage Current, Shutdown V S = ±15V, VSHDN = 15V, VOUT = 0V l 10 µA SR Slew Rate (Note 5) A V = 2, TA = 25°C 400 900 V/ µs Differential Gain (Note 6) V S = ±15V, RF = 560Ω , RG = 560Ω , RL = 30Ω 0.02 % Differential Phase (Note 6) V S = ±15V, RF = 560Ω , RG = 560Ω , RL = 30Ω 0.17 DEG BW Small-Signal Bandwidth V S = ±15V, Peaking ≤ 0.5dB 60 MHz RF = RG = 620Ω , RL = 100Ω VS = ±15V, Peaking ≤ 0.5dB 52 MHz RF = RG = 649Ω , RL = 50Ω VS = ±15V, Peaking ≤ 0.5dB 43 MHz RF = RG = 698Ω , RL = 30Ω VS = ±15V, Peaking ≤ 0.5dB 27 MHz RF = RG = 825Ω , RL = 10Ω Note 3: Thermal resistance θJA varies from 40°C/W to 60°C/W depending upon the amount of PC board metal attached to the device. θJA is specified for a 2500mm2 test board covered with 2oz copper on both sides. Note 4: RSHDN is connected between the Shutdown pin and ground. Note 5: Slew rate is measured at ±5V on a ±10V output signal while operating on ±15V supplies with RF = 1.5k, RG = 1.5k and RL = 400Ω . Note 6: NTSC composite video with an output level of 2V. The l denotes specifications which apply for 0°C ≤ TA ≤ 70°C. Note 1: 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 2: Commercial grade parts are designed to operate over the temperature range of –40 °C to 85°C but are neither tested nor guaranteed beyond 0°C to 70°C. Industrial grade parts tested over –40 °C to 85°C are available on special request. Consult factory.

S ALL-SIG AL BA DWIDTHWU U IS = 20mA per Amplifier Typical, Peaking ≤ 0.1dB IS = 10mA per Amplifier Typical, Peaking ≤ 0.1dB IS = 5mA per Amplifier Typical, Peaking ≤ 0.1dB –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±5V, RSHDN = 22.1k – 1 150 604 604 21 10.5 30 715 715 14.6 7.4 10 681 681 10.5 6.0 1 150 768 – 20 9.6 30 866 – 14.1 6.7 10 825 – 9.8 5.1 2 150 634 634 20 9.6 30 750 750 14.1 7.2 10 732 732 9.6 5.1 10 150 100 11.1 16.2 5.8 30 100 11.1 13.4 7.0 10 100 11.1 9.5 4.7 –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±15V, RSHDN = 121k – 1 150 619 619 25 12.5 30 787 787 15.8 8.5 10 825 825 10.5 5.4 1 150 845 – 23 10.6 30 1k – 15.3 7.6 10 1k – 10 5.2 2 150 681 681 23 10.2 30 845 845 15 7.7 10 866 866 10 5.4 10 150 100 11.1 15.9 4.5 30 100 11.1 13.6 6 10 100 11.1 9.6 4.5 –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±5V, RSHDN = 0Ω –1 150 562 562 48 21.4 30 649 649 34 17 10 732 732 22 12.5 1 150 619 – 54 22.3 30 715 – 36 17.5 10 806 – 22.4 11.5 2 150 576 576 48 20.7 30 649 649 35 18.1 10 750 750 22.4 11.7 10 150 442 48.7 40 19.2 30 511 56.2 31 16.5 10 649 71.5 20 10.2 –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±15V, RSHDN = 0Ω –1 150 681 681 50 19.2 30 768 768 35 17 10 887 887 24 12.3 1 150 768 – 66 22.4 30 909 – 37 17.5 10 1k – 23 12 2 150 665 665 55 23 30 787 787 36 18.5 10 931 931 22.5 11.8 10 150 487 536 44 20.7 30 590 64.9 33 17.5 10 768 84.5 20.7 10.8 –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±5V, RSHDN = 10.2k –1 150 576 576 35 17 30 681 681 25 12.5 10 750 750 16.4 8.7 1 150 665 – 37 17.5 30 768 – 25 12.6 10 845 – 16.5 8.2 2 150 590 590 35 16.8 30 681 681 25 13.4 10 768 768 16.2 8.1 10 150 301 33.2 31 15.6 30 392 43.2 23 11.9 10 499 54.9 15 7.8 –3dB BW –0.1dB BW AV RL RF RG (MHz) (MHz) VS = ±15V, RSHDN = 60.4k –1 150 634 634 41 19.1 30 768 768 26.5 14 10 866 866 17 9.4 1 150 768 – 44 18.8 30 909 – 28 14.4 10 1k – 16.8 8.3 2 150 649 649 40 18.5 30 787 787 27 14.1 10 931 931 16.5 8.1 10 150 301 33.2 33 15.6 30 402 44.2 25 13.3 10 590 64.9 15.3 7.4

TYPICAL PERFOR A CE CHARACTERISTICSWU Bandwidth and Feedback Resistance vs Capacitive Load for 0.5dB PeakBandwidth vs Supply Voltage Bandwidth vs Supply VoltageBandwidth vs Supply Voltage Spot Noise Voltage and Current vs Frequency Bandwidth and Feedback Resistance vs Capacitive Load for 5dB Peak 100 8 12 61 0 14 16 18 SUPPLY VOLTAGE (–V) – 3dB BANDWIDTH (MHz) LT1207 • TPC01 PEAKING ≤ 0.5dB PEAKING ≤ 5dB RF = 470Ω RF = 560Ω RF = 680Ω RF = 750Ω RF = 1k RF = 1.5k AV = 2 RL = 100Ω 8 12 61 0 14 16 18 SUPPLY VOLTAGE (–V) –3dB BANDWIDTH (MHz) LT1207 • TPC02 PEAKING ≤ 0.5dB PEAKING ≤ 5dB RF = 560Ω RF = 1k RF = 2k RF = 750Ω AV = 2 RL = 10Ω 100 8 12 61 0 14 16 18 SUPPLY VOLTAGE (–V) –3dB BANDWIDTH (MHz) LT1207 • TPC04 PEAKING ≤ 0.5dB PEAKING ≤ 5dB RF = 470Ω RF = 1.5k RF = 330Ω RF = 680Ω RF =390Ω AV = 10 RL = 100Ω 8 12 61 0 14 16 18 SUPPLY VOLTAGE (–V) – 3dB BANDWIDTH (MHz) LT1207 • TPC05 PEAKING ≤ 0.5dB PEAKING ≤ 5dB RF = 560Ω RF = 1k RF = 1.5k RF = 680Ω AV = 10 RL = 10Ω CAPACITIVE LOAD (pF) FEEDBACK RESISTOR (Ω ) LT1207 • TPC06 10 100 1k 10k –3dB BANDWIDTH (MHz) 10k 100 100 FEEDBACK RESISTOR BANDWIDTH AV = +2 RL = ∞ VS = –15V CCOMP = 0.01µF FREQUENCY (Hz) 100 100 100k LT1207 • TPC09 1k 10k SPOT NOISE (nV/√Hz OR pA/√Hz) in en –i n Bandwidth vs Supply Voltage CAPACITIVE LOAD (pF)

100 FEEDBACK RESISTOR (Ω )

LT1207 • TPC03 10 1000 BANDWIDTH FEEDBACK RESISTOR AV = 2 RL = ∞ VS = – 15V CCOMP = 0.01µF 100 –3dB BANDWIDTH (MHz) Differential Phase vs Supply Voltage Differential Gain vs Supply Voltage SUPPLY VOLTAGE (–V) DIFFERENTIAL PHASE (DEG) 0.30 0.40 0.50 LT1207 • TPC07 0.20 0.10 7 9 11 15 RF = RG = 560Ω AV = 2 N PACKAGE RL = 15Ω RL = 50Ω RL = 30Ω RL = 150Ω SUPPLY VOLTAGE (–V) DIFFERENTIAL GAIN (%) 0.06 0.08 0.10 LT1207 • TPC08 0.04 0.02 7 9 11 15 RF = RG = 560Ω AV = 2 N PACKAGERL = 15Ω RL = 30Ω RL = 150Ω RL = 50Ω

Ambient Temperature, VS = ±15V Output Short-Circuit Current vs Junction Temperature Supply Current vs Large-Signal Output Frequency (No Load) TYPICAL PERFOR A CE CHARACTERISTICSWU Supply Current vs Shutdown Pin Current Input Common Mode Limit vs Junction Temperature Output Saturation Voltage vs Junction Temperature Power Supply Rejection Ratio vs Frequency Supply Current vs Ambient Temperature, V S = ±5V 8 12 61 0 14 16 18 SUPPLY VOLTAGE (–V) SUPPLY CURRENT PER AMPLIFIER (mA) LT1207 • TPC10 TJ = –40˚C TJ = 25˚C TJ = 85˚C TJ = 125˚C VSHDN = 0V TEMPERATURE (°C) –50 SUPPLY CURRENT PER AMPLIFIER (mA) 0 50 75 LT1207 • TPC11 –25 25 100 125 AV = 1 RL = ∞RSD = 0Ω RSD = 10.2k RSD = 22.1k TEMPERATURE (°C) –50 SUPPLY CURRENT PER AMPLIFIER (mA) 0 50 75 LT1207 • TPC12 –25 25 100 125 AV = 1 RL = ∞RSD = 0Ω RSD = 60.4k RSD = 121k TEMPERATURE (°C) –50 COMMON MODE RANGE (V) 0.5 1.5 2.0 –2.0 LT1207 • TPC14 1.0 0 125 –1.5 –1.0 – 0.5 50–25 100 25 SHUTDOWN PIN CURRENT (µA) SUPPLY CURRENT PER AMPLIFIER (mA) 400 LT1207 • TPC13 100 200 300 500 VS = –15V TEMPERATURE (°C) –50 0.7 0.8 1.0 25 75 LT1207 • TPC15 0.6 0.5 –25 0 50 100 125 0.4 0.3 0.9 OUTPUT SHORT-CIRCUIT CURRENT (A) SOURCING SINKING TEMPERATURE (°C) –50 OUTPUT SATURATION VOLTAGE (V)1 LT1207 • TPC16 0 125 50–25 100 25 VS = –15V RL = 2k RL = 50Ω RL = 50Ω RL = 2k FREQUENCY (Hz) POWER SUPPLY REJECTION (dB) 10k 1M 10M 100M LT1207 • TPC17 100k RL = 50Ω VS = – 15V RF = RG = 1kNEGATIVE POSITIVE Supply Current vs Supply Voltage FREQUENCY (Hz) 10k SUPPLY CURRENT PER AMPLIFIER (mA) 100k 1M 10M LT1207 • TPC18 AV = 2 RL = ∞ VS = – 15V VOUT = 20VP-P

2nd and 3rd Harmonic Distortion vs FrequencyOutput Impedance vs Frequency TYPICAL PERFOR A CE CHARACTERISTICSWU Output Impedance in Shutdown vs Frequency FREQUENCY (Hz) 0.1OUTPUT IMPEDANCE (Ω ) 100 100k 10M 100M LT1207 • TPC19 0.01 VS = –15V IO = 0mA RSHDN = 121k RSHDN = 0Ω FREQUENCY (Hz) 100OUTPUT IMPEDANCE (Ω ) 10k 100k 100k 10M 100M LT1207 • TPC20 AV = 1 RF = 1k VS = – 15V FREQUENCY (MHz) –90 DISTORTION (dBc) –80 –70 –60 –50 –30 31 0 LT1207 • TPC21 –40 24 5 6 7 8 9 VS = –15V VO = 2VP-P 2nd 3rd RL = 10Ω 2nd 3rd RL = 30Ω Test Circuit for 3rd Order Intercept3rd Order Intercept vs Frequency FREQUENCY (MHz) 3rd ORDER INTERCEPT (dBm)20 5 10 15 20 LT1207 • TPC22 25 30 VS = – 15V RL = 50Ω RF = 590Ω RG = 64.9Ω 50Ω 1/2 LT1207 LT1207 • TPC23 65Ω 590Ω PO MEASURE INTERCEPT AT PO

LT1207 • SS OUTPUT 50Ω CC RC COMP–IN+IN SHUTDOWN 1.25k TO ALL CURRENT SOURCES Q11 Q15 Q1Q18 Q17 Q12 Q16 Q14 Q13 Q10 1/2 LT1207 CURRENT FEEDBACK AMPLIFIER USA OPPLICATI WU UI FOR ATIO The LT1207 is a dual current feedback amplifier with high output current drive capability. The device is stable with large capacitive loads and can easily supply the high currents required by capacitive loads. The amplifier will drive low impedance loads such as cables with excellent linearity 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 the highest 0.1dB and 0.5dB bandwidths for various resistive loads and operating 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 peaking up to 5dB. These curves use a solid line when the response has less than 0.5dB of peaking and a dashed line when the response has 0.5dB 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 section on capacitive loads). Capacitive Loads Each amplifier in the LT1207 includes an optional com- pensation network for driving capacitive loads. This net- work eliminates most of the output stage peaking associ- ated with capacitive loads, allowing the frequency re- sponse to be flattened. Figure 1 shows the effect of the network on a 200pF load. Without the optional compensa- tion, there is a 5dB peak at 40MHz caused by the effect of the capacitance on the output stage. Adding a 0.01 µF bypass capacitor between the output and the COMP pins connects the compensation and completely eliminates the peaking. A lower value feedback resistor can now be used, resulting in a response which is flat to 0.35dB to 30MHz.

0.01µF 3k330Ω 10k OUT OUTPUT OFFSET: < 500µV SLEW RATE: 2V/µs BANDWIDTH: 4MHz STABLE WITH C L < 10nF LT1207 • TA02 500pF LT1115 1µF 15V 1µF –15V 68pF 1µF 15V 1µF 1/2 LT1207 0.01µF –15V 560Ω560Ω 909Ω 100Ω RL OUTPUT RL = 32Ω VO = 5VRMS THD + NOISE = 0.0009% AT 1kHz = 0.004% AT 20kHz SMALL-SIGNAL 0.1dB BANDWIDTH = 600kHz LT1207 • TA03 SHDN + + Gain of Eleven High Current Amplifier Gain of Ten Buffered Line Driver

–15V 15V 24k 10k 2N3904 LT1207 • TA04 CMOS Logic to Shutdown Interface 1/2 LT1207 SHDN 75Ω VIN RF RG 75Ω 75Ω 75Ω 75Ω 75Ω CABLE LT1207 • TA05 Distribution Amplifier Differential Input—Differential Output Power Amplifier (A V = 4) Buffer AV = 1 1/2 LT1207 SHDN 0.01µF* VOUT RF** VIN LT1207 • TA06 OPTIONAL, USE WITH CAPACITIVE LOADS VALUE OF RF DEPENDS ON SUPPLY VOLTAGE AND LOADING. SELECT FROM TYPICAL AC PERFORMANCE TABLE OR DETERMINE EMPIRICALLY COMP Differential Output Driver 0.01µF 0.01µF 500Ω VIN VOUT LT1207 • TA07 1/2 LT1207 1/2 LT1207 VOUTVIN LT1207 • TA08 1/2 LT1207 1/2 LT1207

LT1207 • TA09 1/2 LT1207 1/2 LT1207 Paralleling Both CFAs for Guaranteed 500mA Output Drive Current PACKAGE DESCRIPTIOU Dimensions in inches (millimeters) unless otherwise noted. 0.016 – 0.050 0.406 – 1.270 0.010 – 0.020 0° – 8° TYP 0.008 – 0.010 (0.203 – 0.254) 1 2 3 4 5 6 7 8 0.150 – 0.157** (3.810 – 3.988) 16 15 14 13 0.386 – 0.394* (9.804 – 10.008) 0.228 – 0.244 (5.791 – 6.197) 12 11 10 9 S16 0695 0.053 – 0.069 (1.346 – 1.752) 0.014 – 0.019 (0.355 – 0.483) 0.004 – 0.010 (0.101 – 0.254) 0.050 (1.270) TYP DIMENSION DOES NOT INCLUDE MOLD FLASH. MOLD FLASH SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE DIMENSION DOES NOT INCLUDE INTERLEAD FLASH. INTERLEAD FLASH SHALL NOT EXCEED 0.010" (0.254mm) PER SIDE S Package 16-Lead Plastic Small Outline (Narrow 0.150) (LTC DWG # 05-08-1610) Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen- tation that the interconnection of circuits as described herein will not infringe on existing patent rights.

Linear Technology Corporation 1630 McCarthy Blvd., Milpitas, CA 95035-7417 (408) 432-1900 l FAX: (408) 434-0507 l TELEX: 499-3977  LINEAR TECHNOLOGY CORPORA TION 1996 LT/GP 0196 10K • PRINTED IN USA RELATED PARTS PART NUMBER DESCRIPTION COMMENTS LT1206 Single 250mA/60MHz Current Feedback Amplifier Single Version of LT1207, 900V/ µs Slew Rate, 0.02% Differential Gain, 0.17° Differential Phase, with AV = 2 and RL = 30Ω , Stable with CL = 10,000pF, Shutdown Control Reduces Supply Current to 200µA LT1210 Single 1A/30MHz Current Feedback Amplifier Higher Output Current Version of LT1206 LT1229/LT1230 Dual/Quad 100MHz Current Feedback Amplifiers Low Cost CFA for Video Applications, 1000V/ µs Slew Rate, 30mA Output Drive Current, 0.04% Differential Gain, 0.1° Differential Phase, with AV = 2 and RL = 150Ω , 9.5mA Max Supply Current per Op Amp, ±2V to ±15V Supply Range LT1360/LT1361/LT1362 Single/Dual/Quad 50MHz, 800V/ µs, Fast Settling Voltage Feedback Amplifier, 60ns Settling Time to 0.1%, C-Load TM Op Amps 10V Step, 5mA Max Supply Current per Op Amp, 9nV √Hz Input Noise Voltage, Drives All Capacitive Loads, 1mV Max VOS, 0.2% Differential Gain, 0.3° Differential Phase with AV = 2 and RL = 150Ω C-Load is a trademark of Linear Technology Corporation CCD Clock Driver. Two 3rd Order Gaussian Filters Produce Clean CCD Clock Signals CLK D Q Q CLOCK INPUT 100pF 1k 1k 91pF 1k 0.01µF 510Ω 20V 45pF 100pF 1k 1k 91pF 0.01µF 510Ω –10V 45pF 10Ω 10Ω 3300pF 3300pF CCD ARRAY LOAD LT1207 • TA10 CLOCK INPUT DRIVER OUTPUT 74HC74 1/2 LT1207 1/2 LT1207 TYPICAL APPLICATIONU