Datasheet LT1789-1, LT1789-10 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | Micropower, Single Supply Rail-to-Rail Output Instrumentation Amplifier |
| Pages / Page | 24 / 3 — 3V AND 5V. ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 20k, … |
| File Format / Size | PDF / 339 Kb |
| Document Language | English |
3V AND 5V. ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VCM = VREF = half
Model Line for this Datasheet
Text Version of Document
LT1789-1/LT1789-10
3V AND 5V ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VCM = VREF = half supply, TA = 25°C, unless otherwise noted. LT1789-1 LT1789-10 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
VOST Total Input Referred Offset Voltage VOST = VOSI + VOSO/G VOSI Input Offset Voltage G = 1000 15 100 20 160 μV VOSO Output Offset Voltage G = 1 (LT1789-1), G =10 (LT1789-10) 150 750 650 3000 μV IOS Input Offset Current (Note 6) 0.2 4 0.2 4 nA IB Input Bias Current (Note 6) 19 40 19 40 nA en Input Noise Voltage, G = 1, fO = 0.1Hz to 10Hz 5.0 μVP-P RTI (Referred to Input) G = 10 1.5 4.6 μVP-P G = 100, 1000 1.0 1.1 μVP-P
Total RTI Noise = √e 2 ni + (eno/G)2
eni Input Noise Voltage Density, RTI fO = 1kHz (Note 7) 48 85 52 90 nV/√Hz eno Output Noise Voltage Density, RTI fO = 1kHz (Note 3) 330 270 nV/√Hz in Input Noise Current fO = 0.1Hz to 10Hz 16 16 pAP-P Input Noise Current Density fO = 1kHz 62 62 fA/√Hz RIN Input Resistance VIN = 0V to (+VS) – 1V (Note 6) 0.75 1.6 0.75 1.6 GΩ CIN Input Capacitance Differential 1.6 1.6 pF Common Mode 1.6 1.6 pF VCM Input Voltage Range 0 +VS – 1 0 +VS – 1.2 V CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6) LT1789-1,VCM = 0V to (+VS) – 1V LT1789-10, VCM = 0V to (+VS) – 1.2V G = 1 79 88 dB G = 10 96 106 88 105 dB G = 100 100 114 98 113 dB G = 1000 100 114 98 113 dB PSRR Power Supply Rejection Ratio VS = 2.5V to 12.5V, VCM = VREF = 1V G = 1 90 100 dB G = 10 100 113 94 109 dB G = 100 102 116 102 120 dB G = 1000 102 116 102 120 dB Minimum Supply Voltage 2.2 2.5 2.2 2.5 V IS Supply Current (Note 7) 67 95 67 95 μA VOL Output Voltage Swing LOW (Note 7) 54 100 62 110 mV VOH Output Voltage Swing HIGH (Note 7) +VS – 0.3 +VS – 0.19 +VS – 0.3 +VS – 0.19 V ISC Short-Circuit Current Short to GND 2.2 2.2 mA Short to +VS 8.5 8.5 mA BW Bandwidth G = 1 60 kHz G = 10 30 25 kHz G = 100 3 12 kHz G = 1000 0.2 1.5 kHz SR Slew Rate G = 10, VOUT = 0.5V to 4.5V 0.023 0.062 V/μs Settling Time to 0.01% 4V Step 240 190 μs RREFIN Reference Input Resistance 220 220 kΩ IREFIN Reference Input Current VREF = 0V 2.7 2.7 μA AVREF Reference Gain to Output 1 ±0.0001 1 ±0.0001 1789fc 3
3V AND 5V ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 20k, VCM = VREF = half supply, TA = 25°C, unless otherwise noted. LT1789-1 LT1789-10 SYMBOL PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS
VOST Total Input Referred Offset Voltage VOST = VOSI + VOSO/G VOSI Input Offset Voltage G = 1000 15 100 20 160 μV VOSO Output Offset Voltage G = 1 (LT1789-1), G =10 (LT1789-10) 150 750 650 3000 μV IOS Input Offset Current (Note 6) 0.2 4 0.2 4 nA IB Input Bias Current (Note 6) 19 40 19 40 nA en Input Noise Voltage, G = 1, fO = 0.1Hz to 10Hz 5.0 μVP-P RTI (Referred to Input) G = 10 1.5 4.6 μVP-P G = 100, 1000 1.0 1.1 μVP-P
Total RTI Noise = √e 2 ni + (eno/G)2
eni Input Noise Voltage Density, RTI fO = 1kHz (Note 7) 48 85 52 90 nV/√Hz eno Output Noise Voltage Density, RTI fO = 1kHz (Note 3) 330 270 nV/√Hz in Input Noise Current fO = 0.1Hz to 10Hz 16 16 pAP-P Input Noise Current Density fO = 1kHz 62 62 fA/√Hz RIN Input Resistance VIN = 0V to (+VS) – 1V (Note 6) 0.75 1.6 0.75 1.6 GΩ CIN Input Capacitance Differential 1.6 1.6 pF Common Mode 1.6 1.6 pF VCM Input Voltage Range 0 +VS – 1 0 +VS – 1.2 V CMRR Common Mode Rejection Ratio 1k Source Imbalance (Note 6) LT1789-1,VCM = 0V to (+VS) – 1V LT1789-10, VCM = 0V to (+VS) – 1.2V G = 1 79 88 dB G = 10 96 106 88 105 dB G = 100 100 114 98 113 dB G = 1000 100 114 98 113 dB PSRR Power Supply Rejection Ratio VS = 2.5V to 12.5V, VCM = VREF = 1V G = 1 90 100 dB G = 10 100 113 94 109 dB G = 100 102 116 102 120 dB G = 1000 102 116 102 120 dB Minimum Supply Voltage 2.2 2.5 2.2 2.5 V IS Supply Current (Note 7) 67 95 67 95 μA VOL Output Voltage Swing LOW (Note 7) 54 100 62 110 mV VOH Output Voltage Swing HIGH (Note 7) +VS – 0.3 +VS – 0.19 +VS – 0.3 +VS – 0.19 V ISC Short-Circuit Current Short to GND 2.2 2.2 mA Short to +VS 8.5 8.5 mA BW Bandwidth G = 1 60 kHz G = 10 30 25 kHz G = 100 3 12 kHz G = 1000 0.2 1.5 kHz SR Slew Rate G = 10, VOUT = 0.5V to 4.5V 0.023 0.062 V/μs Settling Time to 0.01% 4V Step 240 190 μs RREFIN Reference Input Resistance 220 220 kΩ IREFIN Reference Input Current VREF = 0V 2.7 2.7 μA AVREF Reference Gain to Output 1 ±0.0001 1 ±0.0001 1789fc 3
