TP1561

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Document overview

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Technical content

Features

 Stable 3.8 MHz GBWP Over Temperature Range  Stable 3.8 MHz GBWP in VCM from 0-V to VDD  Very Low Supply Current: 130 μA per Amplifier  Unity Gain Stable for Any Capacitive Load  Offset Voltage: 3.0 mV Maximum  Offset Voltage Temperature Drift: 0.6 μV/°C  Input Bias Current: 1 pA Typical  THD+Noise: -115 dB at 1kHz, -99 dB at 10kHz  High CMRR/PSRR: 120 dB  Beyond the Rails Input Common-Mode Range  Outputs Swing to within 5 mV of Each Rail  No Phase Reversal for Overdriven Inputs  Drives 2 kΩ Resistive Loads  Shutdown Current: 0.2 μA (TP1561N)  Supply Voltage Range: - Single +2.1 V to +6.0 V Supply - Or Dual ±1.05 V to ±3.0 V Supplies  –40°C to 125°C Operation Temperature Range  ESD Rating: 8KV – HBM, 2KV–CDM and 500V–MM  Green, Popular Type Package

Applications

 Multimedia Audio  Headphone Drivers  LCD Drivers  Photo Diode Pre-amp  Medical Equipments  Portable Devices  ASIC Input or Output  Sensor Interfaces

Description

The TP156x series are CMOS single, dual, and quad RRIO op-amps with low offset, low power and stable high frequency response. They incorporate 3PEAK’s proprietary and patented design techniques to achieve very good AC performance with 3.8MHz bandwidth, 3.6V/ μs slew rate and low distortion while drawing only 130 μA of quiescent current per amplifier. The input common-mode voltage range extends 300mV beyond V– and V+, and the outputs swing rail-to-rail. The TP156x family can be used as plug-in replacements for many commercially available op-amps to reduce power and improve input/output range and performance. The TP156x Op-amps are unity gain stable with any capacitive load. They operate from either single +2.1V to +6.0V supply or dual ±1.05V to ±3.0V supplies. Analog trim and calibration routine reduce input offset voltage to below 3.0mV, and proprietary precision temperature compensation technique makes offset voltage temperature drift at 0.6 μV/°C. Adaptive biasing and dynamic compensation enables the TP156x to achieve ‘THD +Noise’ for 1kHz/10kHz 2V PP signal at -115dB/ -99dB. Beyond the rails input and rail-to-rail output characteristics allow the full power-supply voltage to be used for signal range. The combination of feat ures makes the TP156x ideal choices for audio amplification of computers, sound ports, and other consumer Audio. The TP156x Op-amp is very stable, and it is capable of driving heavy capacitive loads such as those found in LCDs. The ability to swing rail-to-rail at the inputs and outputs enables designers to buffer CMOS DACs, ASICs, or other wide output swing devices in single-supply systems. 3PEAK and the 3PEAK logo are registered trademarks of 3PEAK INCORPORATED. All other trademarks are the property of their respective owners. Pin Configuration (Top View) NC ﹣Vs ﹢In ﹣In ﹢Vs Out NC NC TP1561 8-Pin MSOP/SOIC -V and -S Suffixes NC ﹢In ﹣In Out NC SHDN TP1561N 8-Pin MSOP/SOIC -V and -S Suffixes ﹣Vs ﹢Vs 1Out +In -In TP1561U 5-Pin SOT23 -T Suffix ﹣Vs ﹢Vs TP1561 5-Pin SOT23/SC70 -T and -C Suffixes 1Out +In -In ﹣Vs ﹢Vs TP1561N 6-Pin SOT23 -T Suffix 1Out +In -In SHDN﹣Vs ﹢Vs TP1562 8-Pin SOIC/MSOP -S and -V Suffixes Out A ﹢In A ﹣In A ﹢In B ﹣In B Out BA B ﹣Vs ﹢Vs TP1564 14-Pin SOIC/TSSOP -S and -T Suffixes Out A ﹢In A ﹣In A DA CB Out D ﹢In D ﹣In D Out B ﹢In B ﹣In B Out C ﹢In C ﹣In C ﹣Vs﹢Vs

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Absolute Maximum Ratings Note 1 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: The inputs are protected by ESD protection diodes to each pow er supply. If the input extends more than 500mV beyond the power supply, the input current should be limited to less than 10mA. Note 3: A heat sink may be required to keep the junction temperatur e below the absolute maximum. This depends on the power supply voltage and how many amplifiers are shorted. Thermal resistance va ries with the amount of PC board metal connected to the packa ge. The specified values are for short traces connected to the leads. ESD, Electrostatic Discharge Protection Symbol Parameter Condition Minimum Level Unit HBM Human Body Model ESD MIL-STD-883H Method 3015.8 8 kV MM Machine Model ESD JEDEC-EIA/JESD22-A115 500 V CDM Charged Device Model ESD JEDEC-EIA/JESD22-C101E 2 kV Order Information Model Name Order Number Package Transport Media, Quantity Marking Information TP1561 TP1561-TR 5-Pin SOT23 Tape and Reel, 3000 A6TYW (1) TP1561-CR 5-Pin SC70 Tape and Reel, 3000 A6CYW (1) TP1561-VR 8-Pin MSOP Tape and Reel, 3000 A61V TP1561-SR 8-Pin SOIC Tape and Reel, 4000 A61S TP1561U TP1561U-TR 5-Pin SOT23 Tape and Reel, 3000 A6UYW (1) TP1561N TP1561N-TR 6-Pin SOT23 Tape and Reel, 3000 A6NYW (1) TP1561N-SR 8-Pin SOIC Tape and Reel, 4000 A61NS TP1561N-VR 8-Pin MSOP Tape and Reel, 3000 A61NV TP1562 TP1562-SR 8-Pin SOIC Tape and Reel, 4000 A62S TP1562-VR 8-Pin MSOP Tape and Reel, 3000 A62V TP1564 TP1564-SR 14-Pin SOIC Tape and Reel, 2500 A64S TP1564-TR 14-Pin TSSOP Tape and Reel, 3000 A64T Note (1): ‘YW’ is date coding scheme. 'Y' stands for calendar year, and 'W' stands for single workweek coding scheme.

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 The ● denotes the specifications which apply over the full operat ing temperature range, otherwise specifications are at T A = 27°C. VSUPPLY = 5V, VCM = VOUT = VSUPPLY/2, RL = 100KΩ, CL =100pF, VSHDN is unconnected. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VOS Input Offset Voltage V CM = VDD/2 ● -3.0 ±0.1 +3.0 mV VOS TC Input Offset Voltage Drift 0.6 μV/°C IB Input Bias Current 1.0 pA IOS Input Offset Current 1.0 pA Vn Input Voltage Noise f = 0.1Hz to 10Hz 2.4 μVP-P en Input Voltage Noise Density f = 1kHz f = 10kHz 27 14 nV/√Hz RIN Input Resistance > 100 G Ω CIN Input Capacitance Differential Common Mode 2.0 3.5 pF CMRR Common Mode Rejection Ratio V CM = 0.1V to 4.9V ● 80 120 dB VCM Common-mode Input Voltage Range ● V––0.3 V ++0.3 V PSRR Power Supply Rejection Ratio ● 80 120 dB AVOL Open-Loop Large Signal Gain VOUT = 2.5V, RLOAD = 100kΩ ● 80 110 dB VOUT = 0.1V to 4.9V, RLOAD = 100kΩ ● 72 102 dB VOL, VOH Output Swing from Supply Rail R LOAD = 100kΩ 5 mV ROUT Closed-Loop Output Impedance G = 1, f = 1kHz, I OUT = 0 0.4 Ω RO Open-Loop Output Impedance f = 100kHz, IOUT = 0 2.6 Ω ISC Output Short-Circuit Current Sink or source current 45 mA VDD Supply Voltage 2.1 6.0 V IQ Quiescent Current per Amplifier ● 130 190 μA IQ(off) Supply Current in Shutdown Note 1 0.2 μA ISHDN Shutdown Pin Current Note 1 VSHDN = 0.5V VSHDN = 1.5V -0.15 -0.15 μA ILEAK Output Leakage Current in Shutdown Note 1 VSHDN = 0V, VOUT = 0V VSHDN = 0V, VOUT = 5V -20 20 pA VIL SHDN Input Low Voltage Note 1 Disable ● 0.5 V VIH SHDN Input High Voltage Note 1 Enable ● 1.0 V tON Turn-On Time Note 1 SHDN Toggle from 0V to 5V 20 μs tOFF Turn-Off Time Note 1 SHDN Toggle from 5V to 0V 20 μs PM Phase Margin R LOAD = 100kΩ, CLOAD = 100pF 66 ° GM Gain Margin R LOAD = 100kΩ, CLOAD = 100pF -15 dB GBWP Gain-Bandwidth Product f = 1kHz 3.8 MHz tS Settling Time, 1.5V to 3.5V, Unity Gain Settling Time, 2.45V to 2.55V, Unity Gain 0.1% 0.01% 0.1% 0.01% 0.7 0.8 0.1 0.2 μs SR Slew Rate AV = 1, V OUT = 1.5V to 3.5V, C LOAD = 100pF, RLOAD = 100kΩ 3.6 V/ μs FPBW Full Power Bandwidth Note 2 2V P-P 500 kHz THD+N Total Harmonic Distortion and Noise f=1kHz, AV=1, RL=100kΩ, VOUT = 2VPP f=10kHz, AV=1, RL=100kΩ, VOUT = 2VPP -115 -99 dB Note 1: Specifications apply to the TP1561N with shutdown. Note 2: Full power bandwidth is calculated from the slew rate FPBW = SR/π • VP-P.

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Typical Performance Characteristics Small-Signal Step Response, 100mV Step Large-Signal Step Response, 2V Step Open-Loop Gain and Phase Phase Margin vs. CLOAD (Stable for Any CLOAD) Input Voltage Noise Spectral Density Common-Mode Rejection Ratio

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 Typical Performance Characteristics Over-Shoot Voltage, CLOAD = 40nF, Gain = +1 Over-Shoot % vs. CLOAD, Gain = -1, RFB = 20kΩ Over-Shoot Voltage, CLOAD=40nF, Gain= -1, RFB=100kΩ Small-Signal Over-Shoot % vs. CLOAD, Gain = +1 Power-Supply Rejection Ratio VIN = -0.2V to 5.7V, No Phase Reversal

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Typical Performance Characteristics Quiescent Supply Current vs. Temperature Open-Loop Gain vs. Temperature Quiescent Supply Current vs. Supply Voltage Short-Circuit Current vs. Supply Voltage Input Offset Voltage Distribution Closed-Loop Output Impedance vs. Frequency

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 Pin Functions –IN: Inverting Input of the Amplifier. Voltage range of this pin can go from V– – 0.3V to V+ + 0.3V. +IN: Non-Inverting Input of Amplifier. This pin has the same voltage range as –IN. +VS: Positive Power Supply. Typically the voltage is from 2.1V to 5.25V. Split supplies are possible as long as the voltage between V+ and V– is between 2.1V and 5.25V. A bypass capacitor of 0.1 μF as close to the part as possible should be used between power supply pins or between supply pins and ground. S: Negative Power Supply. It is normally tied to ground. It can also be tied to a voltage other than ground as long as the voltage between V + and V– is from 2.1V to 5.25V. If it is not connected to ground, bypass it with a capacitor of 0.1 μF as close to the part as possible. SHDN: Active Low Shutdown. Shutdown threshold is 1.0V above negative supply rail. If unconnected, the amplifier is automatically enabled. OUT: Amplifier Output. The voltage range extends to within millivolts of each supply rail. N/C: No Connection. Operation The TP156x family input signal range extends beyond the negative and posit ive power supplies. The output can even extend all the way to the negative supply. The input stage is comprised of two CMOS differential amplifiers, a PMOS stage and NMOS stage that are active over different ranges of common mode input voltage. The Class-AB control buffer and output bias stage uses a proprietary compensation technique to take full advantage of the process technology to drive very high capacitive loads. This is evident from the transient over shoot measurement plots in the Typical Performance Characteristics. Applications Information Low Supply Voltage and Low Power Consumption The TP156x family of operational amplifiers can operate wi th power supply voltages from 2.1 V to 6.0 V. Each amplifier draws only 130 μA quiescent current. The low supply voltage capability and low supply current are ideal for portable applications demanding high capacitive load driving capability and stable wide bandwidth. The TP156x family is optimized for wide bandwidth low power applications. They have an industry leading high GBWP to power ratio and are unity gain stable for any capaci tive load. When the load capacitance increases, the increased capacitance at the output pushed the non-dominant pole to lower frequency in the open loop frequency response, lowering the phase and gain margin. Higher gain configurations tend to have better capacitive drive capability than lower gain configurations due to lower closed loop bandwidth and hence higher phase margin. Low Input Referred Noise The TP156x family provides a low input referred noise density of 27 nV/√Hz at 1 kHz. The voltage noise will grow slowly with the frequency in wideband range, and the input voltage noise is typically 2.4 μVP-P at the frequency of 0.1 Hz to 10 Hz. Low Input Offset Voltage The TP156x family has a low offset voltage of 3.0 mV maximum which is essential for precision applications. The offset voltage is trimmed with a proprietary trim algorit hm to ensure low offset voltage for precision signal processing requirement. Low Input Bias Current The TP156x family is a CMOS OPA family and features very low input bias current in pA range. The low input bias current allows the amplifiers to be used in applications with high resistance sources. Care must be taken to minimize PCB Surface Leakage. See below sect ion on “PCB Surface Leakage” for more details.

TP1561/ TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 PCB Surface Leakage In applications where low input bias current is critical, Printed Circuit Board (PCB) surface leakage effects need to be considered. Surface leakage is caused by humidity , dust or other contamination on the board. Under low humidity conditions, a typical resist ance between nearby traces is 10 12 Ω. A 5 V difference would cause 5 pA of current to flow, which is greater than the TP156x OPA’ s input bias current at +27°C (±1pA, typical). It is recommended to use multi-layer PCB layout and route the OPA’s -IN and +IN signal under the PCB surface. The effective way to reduce surface leakage is to use a guard ring around sensitive pins (or traces). The guard ring is biased at the same voltage as t he sensitive pin. An example of this ty pe of layout is shown in Figure 1 for Inverting Gain application. 1. For Non-Inverting Gain and Unity-Gain Buffer: a) Connect the non-inverting pin (VIN+) to the input with a wire that does not touch the PCB surface. b) Connect the guard ring to the inverting input pin (VIN–). This biases the guard ring to the Common Mode input voltage. 2. For Inverting Gain and Trans-impedance Gain Amplifiers (convert current to voltage, such as photo detectors): a) Connect the guard ring to the non-inverting input pin (VIN+). This biases the guard ring to the same reference voltage as the op-amp (e.g., VDD/2 or ground). b) Connect the inverting pin (VIN–) to the input with a wire that does not touch the PCB surface. Figure 1 Ground Sensing and Rail to Rail Output The TP156x family has excellent output drive capability, delivering over 10 mA of output drive current. The output stage is a rail-to-rail topology that is capable of swinging to within 10mV of either rail. Since the inputs can go 300 mV beyond either rail, the op-amp can easily perform ‘true ground’ sensing. The maximum output current is a function of total supply voltage. As the supply voltage to the amplifier increases, the output current capability also increa ses. Attention must be paid to keep the junction temperature of the IC below 150°C when the output is in continuous short-circui t. The output of the amplifier has reverse-biased ESD diodes connected to each supply. The output should not be forced more than 0. 5V beyond either supply, otherwise current will flow through these diodes. ESD The TP156x family has reverse-biased ESD protection di odes on all inputs and output. Input and out pins can not be biased more than 300 mV beyond either supply rail. Feedback Components and Suppression of Ringing Care should be taken to ensure that the pole formed by the feedback resistors and t he parasitic capacitance at the inverting input does not degrade stab ility. For example, in a gain of +2 configuration with gain and feedback resistors of 10k, a poorly designed circuit board layout with parasitic capacitance of 5 pF (part +PC board) at the amplifier’s inverting input will cause the amplifier to ring due to a pole formed at 3.2 MHz. An additional capacitor of 5 pF across the feedback resistor as shown in Figure 2 will eliminate any ringing. Careful layout is extremely important because low power signal conditioning applications demand high-impedance circuits. The layout should also minimize stray capacitance at the OPA’s inputs. However some stray capacitance may be unavoidable and it may be necessa ry to add a 2 pF to 10 pF capacitor across the feedback resistor. Select the smallest capacitor value that ensures stability.

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Portable Gas Sensor Amplifier Gas sensors are used in many different industrial and medical applications. Gas sensors generate a current that is proportional to the percentage of a par ticular gas concentration sensed in an air sample. This output current flows through a load resistor and the resultant volta ge drop is amplified. Depending on the sensed gas and sensitivity of the sensor, the output cu rrent can be in t he range of tens of microamp eres to a few milli-amperes. Gas sensor datasheets often specify a recommended load re sistor value or a range of load resistors from which to choose. There are two main applications for oxygen sensors – applications which sense oxygen when it is abundantly present (that is, in air or near an oxygen tank) and thos e which detect traces of oxygen in parts-per-million concentration. In medical applications, oxygen sensors are used when air quality or oxygen delivered to a patient needs to be monitored. In fresh air, the concentration of oxygen is 20.9% and air samples containing less than 18% oxygen are considered dangerous. In industrial applications, oxygen sensors are used to detect the absence of oxygen; for example, vacuum-packaging of food products. The circuit in Figure 9 illustrates a typical implementation used to amplify the output of an oxygen detector. With the components shown in the figure, the circuit consumes less than 37 μA of supply current ensuring that small form-factor single- or button-cell batteries (exhibiting low mAh charge ratings) could last beyond the operating life of the oxygen sensor. The precision specifications of these amplifiers, such as their low offset voltage, low TC-VOS, low input bias current, high CMRR, and high PSRR are other factors which make these amplifiers excellent choices for this application. 100KOhm 100Ohm Vout 100KOhm 10MOhm 2OI 21 in Air ( 21% O ) 0.7 OUT DD VV Iu A Oxygen Sensor City Technology 4OX2 Figure 9

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 Package Outline Dimensions SC70-5 /SOT-353 SOT23-5 (SOT23-6) Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 1.050 1.250 0.041 0.049 A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.400 0.012 0.016 C 0.100 0.200 0.004 0.008 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950TYP 0.037TYP e1 1.800 2.000 0.071 0.079 L 0.700REF 0.028REF L1 0.300 0.460 0.012 0.024 θ 0° 8° 0° 8° Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.900 1.100 0.035 0.043 A1 0.000 0.100 0.000 0.004 A2 0.900 1.000 0.035 0.039 b 0.150 0.350 0.006 0.014 C 0.080 0.150 0.003 0.006 D 2.000 2.200 0.079 0.087 E 1.150 1.350 0.045 0.053 E1 2.150 2.450 0.085 0.096 e 0.650TYP 0.026TYP e1 1.200 1.400 0.047 0.055 L 0.525REF 0.021REF L1 0.260 0.460 0.010 0.018 θ 0° 8° 0° 8°

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Package Outline Dimensions SO-8 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 1.350 1.750 0.053 0.069 A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 B 0.330 0.510 0.013 0.020 C 0.190 0.250 0.007 0.010 D 4.780 5.000 0.188 0.197 E 3.800 4.000 0.150 0.157 E1 5.800 6.300 0.228 0.248 e 1.270TYP 0.050TYP L1 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8° MSOP-8 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.800 1.200 0.031 0.047 A1 0.000 0.200 0.000 0.008 A2 0.760 0.970 0.030 0.038 b 0.30 TYP 0.012 TYP C 0.15 TYP 0.006 TYP D 2.900 3.100 0.114 0.122 e 0.65 TYP 0.026 E 2.900 3.100 0.114 0.122 E1 4.700 5.100 0.185 0.201 L1 0.410 0.650 0.016 0.026 θ 0° 6° 0° 6°

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps w w w . 3 p e a k i c . c o m R E V 1 . 2 Package Outline Dimensions SO-14 Symbol Dimensions In Millimeters MIN NOM MAX A 1.35 1.60 1.75 A1 0.10 0.15 0.25 A2 1.25 1.45 1.65 A3 0.55 0.65 0.75 b 0.36 0.49 b1 0.35 0.40 0.45 c 0.16 0.25 c1 0.15 0.20 0.25 D 8.53 8.63 8.73 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 BSC L 0.45 0.60 0.80 L1 1.04 REF L2 0.25 BSC R 0.07 R1 0.07 h 0.30 0.40 0.50 θ 0° 8° θ1 6° 8° 10° θ2 6° 8° 10° θ3 5° 7° 9° θ4 5° 7° 9°

TP1561/TP1561N/TP1562/TP1564 Stable 3.8MHz, 130μA, RRIO, EveryCapTM Op Amps R E V 1 . 2 w w w . 3 p e a k i c . c o m Package Outline Dimensions TSSOP-14 Symbol Dimensions In Millimeters MIN NOM MAX A - - 1.20 A1 0.05 - 0.15 A2 0.90 1.00 1.05 A3 0.34 0.44 0.54 b 0.20 - 0.28 b1 0.20 0.22 0.24 c 0.10 - 0.19 c1 0.10 0.13 0.15 D 4.86 4.96 5.06 E 6.20 6.40 6.60 E1 4.30 4.40 4.50 e 0.65 BSC L 0.45 0.60 0.75 L1 1.00 REF L2 0.25 BSC R 0.09 - - R1 0.09 - - s 0.20 - θ1 0° - 8° θ2 10° 12° 14° θ3 10° 12° 14°