Datasheet AD8295 (Analog Devices) - 10

AD8295 5 2.0 G = 100 V ) 4 S = ±2.5V, ±5V V 1.8 µ V) ( E E ( 1.6 G G 3 A A T T L L 1.4 2 O V T E VO 1.2 E D 1 S O F F 1.0 -M N 0 O O UT 0.8 M M –1 O INP 0.6 N C I T –2 E G 0.4 PU IN –3 0.2 CHAN –4 0
2
–5 –4 –3 –2 –1 0 1 2 3 4 5
7 04
0 2 4 6 8 10
06 3- 3- 34
OUTPUT VOLTAGE (V) WARM-UP TIME (Min)
34 07 07 Figure 9. Input Common-Mode Voltage Range vs. Output Voltage, Figure 12. Change in Input Offset Voltage vs. Warm-Up Time G = 100, VS = ±2.5 V, ±5 V, VREF = 0 V
15 5 G = 100 VS = ±15V ) 4 V ( 10 E 3 G A T NEGATIVE BIAS CURRENT L 2 5 VO A) POSITIVE BIAS CURRENT E n 1 D ( 0 NT 0 -MO N RE –1 CUR MMO –5 O –2 OFFSET CURRENT C T –3 PU –10 IN –4 –15 –5
3
–15 –10 –5 0 5 10 15
8 04
–40 –20 0 20 40 60 80 100 120 140
06 3- 3- 34
OUTPUT VOLTAGE (V) TEMPERATURE(°C)
34 07 07 Figure 10. Input Common-Mode Voltage Range vs. Output Voltage, Figure 13. Input Bias Current and Input Offset Current vs. Temperature G = 100, VS = ±15 V, VREF = 0 V
0 180 –0.050 160 ±15V GAIN = 1000 A) 140 GAIN = 100 n –0.100 ( ) B NT (d 120 GAIN = 10 –0.150 R R GAIN = 1 PS 100 CURRE E –0.200 AS IV T BI 80 ±5V SI UT –0.250 PO INP 60 –0.300 40 –0.350 20 –15 –10 –5 0 5 10 15
61 9 0
0.1 1 10 100 1k 10k 100k 1M
04 3- 3-
COMMON-MODE VOLTAGE (V)
34 34
FREQUENCY (Hz)
07 07 Figure 11. Input Bias Current vs. Common-Mode Voltage Figure 14. Positive PSRR vs. Frequency, RTI, G = 1 to 1000 Rev. A | Page 10 of 28 Document Outline FEATURES APPLICATIONS CONNECTION DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS INSTRUMENTATION AMPLIFIER SPECIFICATIONS, SINGLE-ENDED AND DIFFERENTIAL OUTPUT CONFIGURATIONS OP AMP SPECIFICATIONS INTERNAL RESISTOR NETWORK POWER AND TEMPERATURE SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS IN-AMP OP AMPS SYSTEM THEORY OF OPERATION UNCOMMITTED OP AMPS INSTRUMENTATION AMPLIFIER Gain Selection Common-Mode Input Voltage Range Reference Terminal LAYOUT Routing and Vias Common-Mode Rejection over Frequency Unused Op Amps Reference Power Supplies INPUT PROTECTION INPUT BIAS CURRENT RETURN PATH RF INTERFERENCE DIFFERENTIAL OUTPUT APPLICATIONS INFORMATION CREATING A REFERENCE VOLTAGE AT MIDSCALE HIGH ACCURACY G = −1 CONFIGURATION WITH LOW-PASS FILTER TWO-POLE SALLEN-KEY FILTER AC-COUPLED INSTRUMENTATION AMPLIFIER DRIVING DIFFERENTIAL ADCs OUTLINE DIMENSIONS ORDERING GUIDE