Datasheet AD620 (Analog Devices) - 6

AD620 TYPICAL PERFORMANCE CHARACTERISTICS
(@ 25°C, VS = ±15 V, RL = 2 kΩ, unless otherwise noted.)
50 2.0 SAMPLE SIZE = 360 1.5 40 1.0 +IB NT (nA) –IB 0.5 30 OF UNITS CURRE 0 NTAGE 20 –0.5 RCE T BIAS E U P INP –1.0 10 –1.5 0 –2.0 –80 –40 0 40 80 –75 –25 25 75 125 175 INPUT OFFSET VOLTAGE (
μ
V) TEMPERATURE (
°
C)
00775-0-005 00775-0-008 Figure 3. Typical Distribution of Input Offset Voltage Figure 6. Input Bias Current vs. Temperature
50 2.0 SAMPLE SIZE = 850 40
μ
V) ( 1.5 LTAGE 30 O V OF UNITS T E 1.0 NTAGE 20 IN OFFS RCE E P 0.5 10 CHANGE 0 0 –1200 –600 0 600 1200 0 1 2 3 4 5 INPUT BIAS CURRENT (pA) WARM-UP TIME (Minutes)
00775-0-006 00775-0-009 Figure 4. Typical Distribution of Input Bias Current Figure 7. Change in Input Offset Voltage vs. Warm-Up Time
50 1000 SAMPLE SIZE = 850 40 GAIN = 1 z) 100 30 V/ H OF UNITS n GAIN = 10 OISE ( NTAGE 20 GE N RCE 10 E P 10 VOLTA GAIN = 100, 1,000 GAIN = 1000 BW LIMIT 0 1 –400 –200 0 200 400 1 10 100 1k 10k 100k INPUT OFFSET CURRENT (pA) FREQUENCY (Hz)
00775-0-010 00775-0-007 Figure 5. Typical Distribution of Input Offset Current Figure 8. Voltage Noise Spectral Density vs. Frequency (G = 1−1000) Rev. H | Page 6 of 20 Document Outline SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS ESD CAUTION TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION Make vs. Buy: a Typical Bridge Application Error Budget Pressure Measurement Medical ECG Precision V-I Converter GAIN SELECTION INPUT AND OUTPUT OFFSET VOLTAGE REFERENCE TERMINAL INPUT PROTECTION RF INTERFERENCE COMMON-MODE REJECTION GROUNDING GROUND RETURNS FOR INPUT BIAS CURRENTS AD620ACHIPS INFORMATION OUTLINE DIMENSIONS ORDERING GUIDE