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INA337 Datasheet(PDF) 3 Page - Texas Instruments |
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INA337 Datasheet(HTML) 3 Page - Texas Instruments |
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3 / 19 page  INA337, INA338 3 SBOS222A www.ti.com ELECTRICAL CHARACTERISTICS: VS = +2.7V to +5.5V BOLDFACE limits apply over the specified temperature range, TA = –40°C to +125°C At TA = +25°C, RL = 10kΩ, G = 100 (R1 = 2kΩ, R2 = 100kΩ), external gain set resistors, and IACOMMON = VS /2, with external equivalent filter corner of 1kHz filters, unless otherwise noted. INA337AIDGK, INA338AIDGS PARAMETER CONDITION MIN TYP MAX UNITS INPUT Offset Voltage, RTI VOS VS = +5V, VCM = VS /2 ±20 ±100 µV Over Temperature ±140 µV vs Temperature dVOS/dT ±0.1 ±0.4 µV/°C vs Power Supply PSR VS = +2.7V to +5.5V, VCM = VS /2 ±20 ±3 µV/V Long-Term Stability See Note (1) Input Impedance, Differential 1010 || 2 Ω || pF Common-Mode 1010 || 14 Ω || pF Input Voltage Range (V–) + 0.25 (V+) + 0.1 V Safe Input Voltage (V–) –0.5 (V+) + 0.5 V Common-Mode Rejection CMR VS = +5V, VCM = (V–) + 0.25V to (V+) + 0.1V 106 120 dB Over Temperature 100 dB INPUT BIAS CURRENT VCM = VS /2 Bias Current IB VS = +5V ±0.2 ±2nA vs Temperature See Typical Characteristics Offset Current IOS VS = +5V ±0.2 ±2nA NOISE Voltage Noise, RTI RS = 0Ω, G = 100, R1 = 2kΩ, R2 = 100kΩ f = 10Hz 33 nV/ √Hz f = 100Hz 33 nV/ √Hz f = 1kHz 33 nV/ √Hz f = 0.01Hz to 10Hz 0.8 µVp-p Voltage Noise, RTI RS = 0Ω, G = 10, R1 = 20kΩ, R2 = 100kΩ f = 10Hz 120 nV/ √Hz f = 100Hz 97 nV/ √Hz f = 1kHz 97 nV/ √Hz f = 0.01Hz to 10Hz 4 µVp-p Current Noise, RTI f = 1kHz 0.15 pA/ √Hz f = 0.01Hz to 10Hz 4.2 pAp-p Output Ripple, VO Filtered(2) See Applications Information GAIN Gain Equation G = 2(R2/R1) Range of Gain < 0.1 > 10000 V/V Gain Error(3) G = 10, 100, VS = +5V, VO = 0.25V to 4.925V 0.08 ±0.2 % vs Temperature G = 10, 100, VS = +5V, VO = 0.25V to 4.925V ±6 ±25 ppm/ °C Nonlinearity G = 10, 100, VS = +5V, VO = 0.25V to 4.925V ±0.003 ±0.01 % of FS OUTPUT Voltage Output Swing from Positive Rail RL = 10kΩ, VS = 5V (V+) – 0.075 (V+) – 0.01 V Over Temperature (V+) – 0.075 V Voltage Output Swing from Negative Rail RL = 10kΩ, VS = 5V (V–) + 0.25 (V+) + 0.01 V Over Temperature (V–) + 0.25 V Capacitive Load Drive 500 pF Short-Circuit Current ISC ±25 mA INTERNAL OSCILLATOR Frequency of Auto-Correction 90 kHz Accuracy ±20 % FREQUENCY RESPONSE Bandwidth(4), –3dB BW G = 1 to 1k 1 kHz Slew Rate(4) SR VS = 5V, All Gains, CL = 100pF Filter Limited Settling Time(4), 0.1% tS 1kHz Filter, G = 1 to 1k, VO = 2V step, CL = 100pF 0.95 ms 0.01% 1.3 ms 0.1% 10kHz Filter, G = 1 to 1k, VO = 2V step, CL = 100pF 130 µs 0.01% 160 µs Overload Recovery(4) 1kHz Filter, 50% Output Overload, G = 1 to 1k 30 µs 10kHz Filter, 50% Output Overload, G = 1 to 1k 5 µs |
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