TP5594-SR

TP5591 3PEAK | Alldatasheet

Document overview

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Technical content

Features

 LOW OFFSET VOLTAGE: 20 μV (Max)  ZERO DRIFT: 0.01 µ V/° C  Ultra-low Noise: - Input Noise Voltage: 17 nV/√Hz at 1 kHz - 0.1Hz to 10Hz Noise Voltage: 370 nVPP - 1/f Noise Corner Down to 0.1Hz  3.3 MHz Bandwidth, 2.5 V/μs Slew Rate  Low Supply Current: 470 μA per Amplifier  Single-Supply Operation Down to +1.8V  Low Input Bias Current: 60 pA  High Gain, 127 dB High CMRR & PSRR  Overload Recovery Time: 35 μs  Rail-to-Rail Input and Output Swing  –40° C to 125° C Operation Range

Applications

 Medical Instrumentation  Temperature Measurements  Precision current sensing  Precision Low Drift, Low Frequency ADC Drivers  Process Control Systems  Precision Voltage Reference Buffers

Description

The TP5591-2-4 amplifiers are single, dual and quad chopper stabilized zero -drift ope rational amplifier s optimized for single or dual supply operation from 1.8V to 5.5 V or ±0.9V to ±2.75V. The TP559x op-amps feature very low input offset voltage and low noise with 1/f noise corner down to 0.1Hz. The TP559x amplifiers are designed to have l ow offset voltage and offset temperature drift, wide gain bandwidth and rail -to-rail input and output swing while minimizing power consumption. The TP559x op -amps can provide low offset voltage (20μV Max) and near -zero drift over time and temperature with excellent CMRR and PSRR. The TP5591 (single version) is available in SC70-5, SOT23-5 and SO-8 packages. The TP5592 (dual version) is offered in MSOP-8, SO-8 package. The TP5594 (quad version) is available in TSSOP -14 and SO-14 package. All versions are sp ecified for operation from -40°C to 125°C. 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 TP5591 8-Pin SOIC (-S Suffix) TP5591 5-Pin SOT23/SC70 (-T and -C Suffixes) 1Out +In -In ﹣Vs ﹢Vs TP5592 8-Pin SOIC/MSOP (-S and -V Suffixes) Out A ﹢In A ﹣In A ﹢In B ﹣In B Out BA B ﹣Vs ﹢Vs TP5594 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 TP5591U 5-Pin SC70/SOT23 (-C and -T Suffixes) +In ﹣Vs -In ﹢Vs Out

2 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps Order Information Model Name Order Number Package Transport Media, Quantity Marking Information TP5591 TP5591-TR SOT23-5 Tape and Reel, 3,000 E91T TP5591-CR SC70-5 Tape and Reel, 3,000 91C TP5591-SR SOIC-8 Tape and Reel, 4,000 TP5591 TP5591U TP5591U-CR SC70-5 Tape and Reel, 3,000 91V TP5591U-TR SOT23-5 Tape and Reel, 3,000 E91U TP5592 TP5592-SR SOIC-8 Tape and Reel, 4,000 TP5592 TP5592-VR MSOP-8 Tape and Reel, 3,000 TP5592 TP5594 TP5594-SR SOIC-14 Tape and Reel, 2,500 TP5594 TP5594-TR TSSOP-14 Tape and Reel, 3,000 TP5594 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 power 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 temperature below the absolute maximum. This depends on the power supply voltage and how many amplifiers are shorted. Thermal resistance varies with the amou nt of PC board metal connected to the package. 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 ANSI/ESDA/JEDEC JS-001 7 kV CDM Charged Device Model ESD ANSI/ESDA/JEDEC JS-002 2 kV

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01

Electrical Characteristics

At TA = 27° C, VS = 5V, RL = 10kΩ, VCM = VDD/2, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VS Supply voltage range 1.8 5.5 V IQ Quiescent current per amplifier TP5591 1200 1400 μA TP5592/4 550 950 μA VOS Input offset voltage VCM = 0.05V to 4.95V ±5 ±20 μV VS = 1.8V, VCM = 0.9V ±5 ±20 μV dVOS/dT vs. temperature 0.01 μV/°C PSRR vs power supply Vs = 3V to 5V 95 130 dB Vn Input voltage noise, f=0.01Hz to 1Hz 0.1 μVpp Input voltage noise, f=0.1Hz to 10Hz 0.37 μVpp en Input voltage noise density, f=1kHz 17 nV/√Hz CIN Input capacitor differential 3 pF Input capacitor common-mode 2 pF IB Input current ±60 ± 200 pA Over temperature ±800 pA IOS Input offset current ± 100 ± 400 pA VCM Common-mode voltage range (V-)-0.1 (V+)+0.1 V CMRR Common-mode rejection ratio VCM = 0.5V to 4.5V 110 127 dB VO Output voltage swing from rail RL=10kΩ 5 25 mV ISC Short-circuit current ± 60 mA GBWP Unity gain bandwidth CL=100pF 3.3 MHz SR Slew rate G=+1, CL=100pF 2.5 V/μs tOR Overload recovery time G=-10 35 μs tS Settling time to 0.01% CL=100pF 20 μs AVOL Open-loop voltage gain (V-)+100mV<VO<(V+)-100mV, RL = 100kΩ 100 130 dB θJA Thermal resistance junction to ambient SOT23-5 200 ° C/W MSOP-8 210 SO-8 158 SC70-5 250 SO-14 83 TSSOP-14 100

4 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps Typical Performance Characteristics Small-Scale Step Response Output Voltage (50m V/div) Time (5μs/div) G=+1 RL=10KΩ Positive Over-Voltage Recovery 2V/div Time (50μs/div) 1V/div Input Output 100 200 300 400 500 600 700 800 900 1000 -50 -25 0 25 50 75 100 125 150 IQ(μV) Temperature(°C) Quiesent Current vs Temperature 100 0.01 0.1 1 10 100 1k 10k Volage noise (nV/√Hz) Frequency (Hz) Voltage Noise Spectral Density vs Frequency 10 100 1k 10k 100k 1M 10M 100 -20 100 120Aol(dB) Frequency(Hz) OPEN-LOOP GAIN vs FREQUENCY Phase(deg) 100 120 140 1 10 100 1k 10k 100k 1M CMRR(dB) Frequency(Hz) CMRR vs FREQUENCY

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 Negative Over-Voltage Recovery Time (50μs/div) 1V/div 1V/div Input Output Large-Scale Step Response Output Voltage (2V/div) Time (10μs/div) G=+1 RL=10KΩ -12 -10 Population (%) Offset Voltage (μV) Offset Voltage Distribution

6 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps Typical Applications Single Supply, High Gain Amplifier, AV = 10,000 V/V TP5591 Thermistor Measurement TP5591

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 Pin Functions -IN: Inverting Input of the Amplifier. +IN: Non-Inverting Input of Amplifier. OUT: Amplifier Output. The voltage range extends to within mV of each supply rail. V+ or +Vs: Positive Power Supply. Typically the voltage is from 1.8V to 5.5V. Split supplies are possible as long as the voltage between V+ and V– is between 1.8V and 5.5V. A bypass capacitor of 0.1μF as close to the part as possible should be used between power supply pin s or between supply pins and ground. V- or -Vs: 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 1.8V to 5.5V. If it is not connected to ground, bypass it with a capacitor of 0.1μF as close to the part as possible. Operation The TP559x series op amps are zero drift, rail-to-rail operation amplifiers that can be run from a single-supply voltage. They use an auto -calibration technique with a time -continuous 3.3 MHz op amp in the signal path while consuming only 470 μA of supply current per channel. This amplifier is zero-corrected with an 120 kHz clock. Upon power-up, the amplifier requires approximately 100 μs to achieve specified VOS accuracy. This design has no aliasing or flicker noise. Applications Information Rail-To-Rail Input And Output The TP559x op-amps feature rail-to-rail input and output with a supply voltage from 1.8V to 5.5 V. This allows the amplifier inputs to have a wide common mode range (50mV beyond supply rails) while maintaining high CMRR(127dB) and maximizes the signal to noise ratio of the amplifier by having the VOH and VOL levels be at the V+ and V- rails, respectively. Input Protection The TP559x op-amps have internal ESD protection diodes that are connect between the inputs and supply rail. When either input exceeds one of the supply rails by more than 300mV, the ESD diodes become forward biased and large amounts of current begin to flow through them. Without current limiting, this excessive fault current causes permanent damage to the device. Thus an external series resistor must be used to ensure the input currents never exceed 10mA. IN+ IN- 500Ω 500Ω INPUT ESD DIODE CURRENT LIMITING- UNITY GAIN Ioverload 10mA max VIN Current-limiting resistor required if input voltage exceeds supply rails by >0.5V. TP5591 Vout +2.5V -2.5V 5kΩ

8 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps Low Input Referred Noise Flicker noise, as known as 1/f noise, is inherent in semiconductor devices and increases as frequency decreases. So at lower frequencies, flicker noise dominates, causing higher degrees of error for sub-Hertz frequencies or dc precision application. The TP559x op-amps are chopper stabilized amplifiers, the flicker noise is reduced greatly because of this technique. This reduction in 1/f noise allows the TP559x to have much lower noise at dc and low frequency compared to standard low noise amplifier. Residual voltage ripple The chopping technique can be used in amplifier design due to the internal notch filter. Although the chopping related voltage ripple is suppressed, higher noise spectrum exists at the chopping frequency and its harmonics due to residual ripple. So if the frequency of input signal is nearby the chopping frequency, the signal maybe interfered by the residue ripple. To further suppress the noise at the chopping frequency, it is recommended that a post filter be placed at the output of the amplifier. Broad Band And External Resistor Noise Considerations The total broadband noise output from any amplifier is primarily a function of three types of noise: input voltage noise from the amplifier, input current noise from the amplifier, and thermal (Johnson) noise from the external resistors used around the amplifier. These noise sources are not correlated with each oth er and their combined noise can be summed in a root sum squared manner. The full equation is given as: 2 2 1/2[ 4 ( ) ]   n n s n se total e kTR i R Where: en= the input voltage noise density of the amplifier. in= the input current noise of the amplifier. RS= source resistance connected to the noninverting terminal. k= Boltzmann’s constant (1.38x10-23J/K). T= ambient temperature in Kelvin (K). The total equivalent rms noise over a specific bandwidth is expressed as: , n rms ne e total BW The input voltage noise density (en) of the TP559x is 17 nV/√Hz, and the input current noise can be neglected. When the source resistance is 190 kΩ, the voltage noise contribution from the source resistor and the amplifier are equal. With source resistance greater than 190 kΩ, the overall noise of the system is dominated by the Johnson noise of the resistor itself. High Source Impedance Application The TP559x op-amps use switches at the chopper amplifier input , the input signal is chopped at 125 kHz to reduce input offset voltage down to 20µV. The dynamic behavior of these switches induces a charge injection current to the input terminals of the amplifier. The charge injection current has a DC path to ground through the resistances seen at the input terminals of the amplifier. Higher input impedance cause an apparen t shift in the input bias current of the amplifier. Because the chopper amplifier has charge injection currents at each terminal, the input offset current will be larger than standard amplifiers. The IOS of TP559x are 150pA under the typical condition. So the input impedance should be balanced across each input . The input impedance of the amplifier should be matched between the IN+ and IN -

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 terminals to minimize total input offset current. Input offset currents show up as an additional output offset voltage , as shown in the following equation: ,   os total os f osv v R I For a gain configure using 1MΩ feedback resistor, a 150pA total input offset current will have an additional output offset voltage of 0.15mV. By keeping the input impedance low and balanced across the amplifier inputs, the input offset current effect will be suppress efficiently. TP5591 Ri +2.5V -2.5V Rf Vref Rs Rb Vout Vref VIN Circuit Implication for reducing Input offset current effect PCB Surface Leakage In applications where low input bias current is critic al, Printed Circuit Board (PCB) surface leakage effects need to be considered. Surface leakage is caused by humidity, dust or other contamination on the board. 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 the sensitive pin. An example of this type of layout is shown in the Figure 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. VIN+ VIN- +VSGuard Ring The Layout of Guard Ring

10 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps D e E b θPackage Outline Dimensions SOT23-5 / SOT23-6 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max 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 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 L1 0.300 0.460 0.012 0.024 θ 0° 8° 0° 8°

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 D e E b C θ Package Outline Dimensions SC-70-5 / -6 (SOT353 / SOT363) Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max 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 L1 0.260 0.460 0.010 0.018 θ 0° 8° 0° 8°

12 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps D b E e θ CPackage Outline Dimensions SO-8 (SOIC-8) Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max 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 1.270 TYP 0.050 TYP L1 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8°

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 Package Outline Dimensions 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° e E A D L1 L2 L R θ b

14 REV A.01 www.3peakic.com.cn TP5591 / TP5592 / TP5594 Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps Op-amps Package Outline Dimensions TSSPO-14 Symbol Dimensions In Millimeters MIN TYP MAX A - - 1.20 A1 0.05 - 0.15 A2 0.90 1.00 1.05 b 0.20 - 0.28 c 0.10 - 0.19 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 - - θ 0° - 8° E e A D L1 L2 L R θ c

Low Noise, 1.8V, 3.3MHz, RRIO, Zero Drift Op-amps www.3peakic.com.cn REV A.01 θ e b E1 E D A A2 L Package Outline Dimensions SO-14 (SOIC-14) Symbol Dimensions In Millimeters MIN TYP MAX A 1.35 1.60 1.75 A1 0.10 0.15 0.25 A2 1.25 1.45 1.65 b 0.36 0.49 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 θ 0° 8°