Datasheet LTC6915 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | Zero Drift, Precision Instrumentation Amplifier with Digitally Programmable Gain |
| Seiten / Seite | 18 / 7 — Typical perForMance characTerisTics. Input Offset Voltage vs Input. … |
| Dateiformat / Größe | PDF / 297 Kb |
| Dokumentensprache | Englisch |
Typical perForMance characTerisTics. Input Offset Voltage vs Input. Common Mode. Error Due to Input RS vs Input
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LTC6915
Typical perForMance characTerisTics Input Offset Voltage vs Input Input Offset Voltage vs Input Input Offset Voltage vs Input Common Mode Common Mode Common Mode
0 2 8 VS = 3V VS = 5V VS = ±5V 6 –2 VREF = 0.2V 0 VREF = 0.2V VREF = 0V TA = 25°C T T –2 A = 25°C 4 A = 25°C –4 –4 2 –6 0 –6 AV = 4096 AV = 4096 –2 –8 –8 A A V = 256 V = 4096 A –4 V = 256 –10 –10 –6 AV = 16 –12 AV = 256 –12 –8 INPUT OFFSET VOLTAGE (µV) A A A INPUT OFFSET VOLTAGE (µV) –14 V = 16 INPUT OFFSET VOLTAGE (µV) V = 16 V = 1 –10 –14 –16 –12 AV = 1 A –16 –18 –14 V = 1 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –5 –4 –3 –2 –1 0 1 2 3 4 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G01 6915 G02 6915 G03
Input Offset Voltage vs Input Input Offset Voltage vs Input Input Offset Voltage vs Input Common Mode Common Mode Common Mode
20 20 20 VS = 3V VS = 5V VS = ±5V 15 VREF = 0.2V 15 VREF = 0.2V 15 VREF = 0V AV = 16 AV = 16 AV = 16 TA = –50°C 10 10 10 TA = 25°C 5 5 5 T T A = 125°C A = 125°C 0 0 TA = 125°C 0 –5 T –5 T A = 85°C A = 85°C –5 TA = 85°C –10 TA = 70°C –10 T –10 TA = 25°C INPUT OFFSET VOLTAGE (µV) A = 25°C TA = 70°C INPUT OFFSET VOLTAGE (µV) T –15 A = 70°C INPUT OFFSET VOLTAGE (µV) –15 TA = –50°C –15 –20 TA = –50°C –20 –20 –25 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 5 –5 –3 –1 1 3 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G04 6915 G05 6915 G06
Error Due to Input RS vs Input Error Due to Input RS vs Input Error Due to Input RS vs Input Common Mode Common Mode Common Mode
10 20 20 VS = 5V VS = ±5V VREF = 0.2V VREF = 0V 0 RS = 5k R R+ = R– = R R S = 20k S S = 20k R+ = R– = RS 10 CIN < 100pF 10 CIN < 100pF R A RS = 10k –10 RS = 10k AV = 16 S = 10k V = 16 TA = 25°C R T S = 15k A = 25°C RS = 15k R –20 S = 15k 0 0 R R S = 5k RS = 5k S = 20k –30 VS = 3V V RS RS RS ADDITIONAL OFFSET (µV) REF = 0.2V R+ = R– = R + ADDITIONAL OFFSET (µV) –10 ADDITIONAL OFFSET (µV) –10 S + + –40 C C C C IN < 100pF IN IN IN A – – – V = 16 TA = 25°C RS RS RS –50 –20 –20 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 5 –5 –3 –1 1 3 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G07 6915 G08 6915 G09 6915fb 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts
Typical perForMance characTerisTics Input Offset Voltage vs Input Input Offset Voltage vs Input Input Offset Voltage vs Input Common Mode Common Mode Common Mode
0 2 8 VS = 3V VS = 5V VS = ±5V 6 –2 VREF = 0.2V 0 VREF = 0.2V VREF = 0V TA = 25°C T T –2 A = 25°C 4 A = 25°C –4 –4 2 –6 0 –6 AV = 4096 AV = 4096 –2 –8 –8 A A V = 256 V = 4096 A –4 V = 256 –10 –10 –6 AV = 16 –12 AV = 256 –12 –8 INPUT OFFSET VOLTAGE (µV) A A A INPUT OFFSET VOLTAGE (µV) –14 V = 16 INPUT OFFSET VOLTAGE (µV) V = 16 V = 1 –10 –14 –16 –12 AV = 1 A –16 –18 –14 V = 1 0 0.5 1.0 1.5 2.0 2.5 3.0 0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 –5 –4 –3 –2 –1 0 1 2 3 4 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G01 6915 G02 6915 G03
Input Offset Voltage vs Input Input Offset Voltage vs Input Input Offset Voltage vs Input Common Mode Common Mode Common Mode
20 20 20 VS = 3V VS = 5V VS = ±5V 15 VREF = 0.2V 15 VREF = 0.2V 15 VREF = 0V AV = 16 AV = 16 AV = 16 TA = –50°C 10 10 10 TA = 25°C 5 5 5 T T A = 125°C A = 125°C 0 0 TA = 125°C 0 –5 T –5 T A = 85°C A = 85°C –5 TA = 85°C –10 TA = 70°C –10 T –10 TA = 25°C INPUT OFFSET VOLTAGE (µV) A = 25°C TA = 70°C INPUT OFFSET VOLTAGE (µV) T –15 A = 70°C INPUT OFFSET VOLTAGE (µV) –15 TA = –50°C –15 –20 TA = –50°C –20 –20 –25 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 5 –5 –3 –1 1 3 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G04 6915 G05 6915 G06
Error Due to Input RS vs Input Error Due to Input RS vs Input Error Due to Input RS vs Input Common Mode Common Mode Common Mode
10 20 20 VS = 5V VS = ±5V VREF = 0.2V VREF = 0V 0 RS = 5k R R+ = R– = R R S = 20k S S = 20k R+ = R– = RS 10 CIN < 100pF 10 CIN < 100pF R A RS = 10k –10 RS = 10k AV = 16 S = 10k V = 16 TA = 25°C R T S = 15k A = 25°C RS = 15k R –20 S = 15k 0 0 R R S = 5k RS = 5k S = 20k –30 VS = 3V V RS RS RS ADDITIONAL OFFSET (µV) REF = 0.2V R+ = R– = R + ADDITIONAL OFFSET (µV) –10 ADDITIONAL OFFSET (µV) –10 S + + –40 C C C C IN < 100pF IN IN IN A – – – V = 16 TA = 25°C RS RS RS –50 –20 –20 0 0.5 1.0 1.5 2.0 2.5 3.0 0 1 2 3 4 5 –5 –3 –1 1 3 5 INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) INPUT COMMON MODE VOLTAGE (V) 6915 G07 6915 G08 6915 G09 6915fb 7 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagrams Timing Diagram Operation Typical Application Package Description Revision History Typical Application Related Parts