Datasheet LT1990 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | ±250V Input Range G = 1, 10, Micropower, Difference Amplifier |
| Pages / Page | 16 / 3 — 3V/5V ELECTRICAL CHARACTERISTICS. VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM … |
| File Format / Size | PDF / 277 Kb |
| Document Language | English |
3V/5V ELECTRICAL CHARACTERISTICS. VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, TA = 25
Model Line for this Datasheet
Text Version of Document
LT1990
3V/5V ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, TA = 25
°
C, unless otherwise noted. (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Offset Voltage, RTI G = 1, 10 0.8 3 mV en Input Noise Voltage, RTI fO = 0.1Hz to 10Hz 22 µVP-P Noise Voltage Density, RTI fO = 1kHz 1 µV/√Hz RIN Input Resistance Differential 2 MΩ Common Mode 0.5 MΩ PSRR Power Supply Rejection Ratio, RTI VS = 2.7V to 12.7V, VCM = VREF = 1.25V 80 92 dB Minimum Supply Voltage Guaranteed by PSRR 2.4 2.7 V IS Supply Current (Note 8) 105 120 µA VOL Output Voltage Swing LOW –IN = V+, +IN = Half Supply (Note 8) 30 50 mV VOH Output Voltage Swing HIGH –IN = 0V, +IN = Half Supply VS = 3V, 0V, Below V+ 100 150 mV VS = 5V, 0V, Below V+ 120 175 mV ISC Output Short-Circuit Current Short to GND (Note 9) 4 8 mA Short to V+ (Note 9) 13 20 mA BW Bandwidth (–3dB) G = 1 100 kHz G = 10 6.5 kHz SR Slew Rate G = 1, VS = 5V, 0V, VOUT = 0.5V to 4.5V 0.5 V/µs Settling Time to 0.01% 4V Step, G = 1, VS = 5V, 0V 45 µs AVREF Reference Gain to Output G = 1 1 ± 0.0007 G = 10 1 ± 0.007
The
●
denotes the specifications which apply over the temperature range of 0
°
C
≤
TA
≤
70
°
C. VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6) LT1990C/LT1990I SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error VOUT = 0.5V to (+VS) – 0.75V LT1990, G = 1 ● 0.65 % LT1990A, G = 1 ● 0.33 % G = 10 ● 0.90 % G/T Gain vs Temperature G = 1 (Note 10) ● 2 10 ppm/°C G = 10 (Note 10) ● 7 20 ppm/°C VCM Input Voltage Range Guaranteed by CMRR VS = 3V, 0V, VREF = 1.25V ● –5 25 V VS = 5V, 0V, VREF = 1.25V ● –5 80 V VS = 5V, 0V, VREF = 2.5V ● –37 48 V CMRR Common Mode Rejection Ratio, RTI VS = 3V, 0V (Note 7) VCM = –5V to 25V, VREF = 1.25V LT1990 ● 58 dB LT1990A ● 68 dB VS = 5V, 0V VCM = –5V to 80V, VREF = 1.25V LT1990 ● 58 dB LT1990A ● 68 dB VS = 5V, 0V (Note 7) VCM = –38V to 47V, VREF = 2.5V LT1990 ● 58 dB LT1990A ● 68 dB 1990fb 3
3V/5V ELECTRICAL CHARACTERISTICS VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, TA = 25
°
C, unless otherwise noted. (Note 6) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VOS Offset Voltage, RTI G = 1, 10 0.8 3 mV en Input Noise Voltage, RTI fO = 0.1Hz to 10Hz 22 µVP-P Noise Voltage Density, RTI fO = 1kHz 1 µV/√Hz RIN Input Resistance Differential 2 MΩ Common Mode 0.5 MΩ PSRR Power Supply Rejection Ratio, RTI VS = 2.7V to 12.7V, VCM = VREF = 1.25V 80 92 dB Minimum Supply Voltage Guaranteed by PSRR 2.4 2.7 V IS Supply Current (Note 8) 105 120 µA VOL Output Voltage Swing LOW –IN = V+, +IN = Half Supply (Note 8) 30 50 mV VOH Output Voltage Swing HIGH –IN = 0V, +IN = Half Supply VS = 3V, 0V, Below V+ 100 150 mV VS = 5V, 0V, Below V+ 120 175 mV ISC Output Short-Circuit Current Short to GND (Note 9) 4 8 mA Short to V+ (Note 9) 13 20 mA BW Bandwidth (–3dB) G = 1 100 kHz G = 10 6.5 kHz SR Slew Rate G = 1, VS = 5V, 0V, VOUT = 0.5V to 4.5V 0.5 V/µs Settling Time to 0.01% 4V Step, G = 1, VS = 5V, 0V 45 µs AVREF Reference Gain to Output G = 1 1 ± 0.0007 G = 10 1 ± 0.007
The
●
denotes the specifications which apply over the temperature range of 0
°
C
≤
TA
≤
70
°
C. VS = 3V, 0V; VS = 5V, 0V; RL = 10k, VCM = VREF = half supply, G = 1, 10, unless otherwise noted. (Notes 4, 6) LT1990C/LT1990I SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆G Gain Error VOUT = 0.5V to (+VS) – 0.75V LT1990, G = 1 ● 0.65 % LT1990A, G = 1 ● 0.33 % G = 10 ● 0.90 % G/T Gain vs Temperature G = 1 (Note 10) ● 2 10 ppm/°C G = 10 (Note 10) ● 7 20 ppm/°C VCM Input Voltage Range Guaranteed by CMRR VS = 3V, 0V, VREF = 1.25V ● –5 25 V VS = 5V, 0V, VREF = 1.25V ● –5 80 V VS = 5V, 0V, VREF = 2.5V ● –37 48 V CMRR Common Mode Rejection Ratio, RTI VS = 3V, 0V (Note 7) VCM = –5V to 25V, VREF = 1.25V LT1990 ● 58 dB LT1990A ● 68 dB VS = 5V, 0V VCM = –5V to 80V, VREF = 1.25V LT1990 ● 58 dB LT1990A ● 68 dB VS = 5V, 0V (Note 7) VCM = –38V to 47V, VREF = 2.5V LT1990 ● 58 dB LT1990A ● 68 dB 1990fb 3
