Datasheet AD621 (Analog Devices) - 5

Typical Performance Characteristics–AD621 50 50 SAMPLE SIZE = 90 SAMPLE SIZE = 90 40 40 30 30 E OF UNITS G A 20 20 PERCENTAGE OF UNITS PERCENT 10 10 0 0 –200 –100 0 +100 +200 –800 –400 0 +400 +800 INPUT OFFSET VOLTAGE –
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V INPUT BIAS CURRENT – pA
TPC 1. Typical Distribution of VOS, Gain = 10 TPC 4. Typical Distribution of Input Bias Current
50 2.0 SAMPLE SIZE = 90 V 40
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– 1.5 30 1.0 20 PERCENTAGE OF UNITS 0.5 10 CHANGE IN OFFSET VOLTAGE 0 0 –80 –40 0 +40 +80 0 1 2 3 4 5 INPUT OFFSET VOLTAGE –
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V WARM-UP TIME – Minutes
TPC 2. Typical Distribution of VOS, Gain = 100 TPC 5. Change in Input Offset Voltage vs. Warm-Up Time
50 1000 SAMPLE SIZE = 90 40 Hz 100 30 nV/ – E OF UNITS G A GAIN = 10 20 10 PERCENT VOLTAGE NOISE 10 GAIN = 100 0 –400 –200 0 +200 +400 1 1 10 100 1k 10k 100k INPUT OFFSET CURRENT – pA FREQUENCY – Hz
TPC 3. Typical Distribution of Input Offset Current TPC 6. Voltage Noise Spectral Density REV. B –5–