Datasheet AD8225 (Analog Devices) - 7

AD8225–Typical Performance Characteristics (TA = 25 C, RL = 2 k , VS = 15 V, unless otherwise noted.) 50 250 LOT SIZE = 3775 45 200 40 35 150 30 +BIAS CURRENT 25 100 % OF UNITS 20 –BIAS CURRENT 50 15 BIAS CURRENT – pA 10 0 5 0 –50 –140–120–100 –80 –60 –40 –20 0 20 40 60 80 100 120 –60 –40 –20 0 20 40 60 80 100 INPUT OFFSET VOLTAGE – V TEMPERATURE – C
TPC 1. Typical Distribution of Input Offset Voltage, TPC 4. Bias Current vs. Temperature VS = ±15 V
50 8 LOT SIZE = 7550 45 V 40 6 35 GE – A T L 30 O V 25 4 % OF UNITS 20 15 2 10 CHANGE IN OFFSET 5 0 0 –200 –100 0 100 200 300 400 500 600 700 800 0 1 2 3 4 5 INPUT BIAS CURRENT – pA WARM-UP TIME – Min
TPC 2. Typical Distribution of Input Bias Current, TPC 5. Offset Voltage vs. Warm-Up Time VS = ±15 V
50 1000 LOT SIZE = 3775 45 Hz 40 35 30 25 100 % OF UNITS 20 NOISE DENSITY – nV/ E 15 G LTA 10 VO 5 0 0 –500 –400 –300 –200 –100 0 100 200 300 400 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 vs. Frequency (RTI) VS = ±15 V –6– REV. A Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS PIN FUNCTION DESCRIPTIONS ORDERING GUIDE Typical Performance Characteristics Test Circuits THEORY OF OPERATION 47pF 2 5 200mV APPLICATIONS Precision V-to-I Converter Driving a High Resolution ADC Using the Reference Input AD8225 Used as an EKG Front End Benefits of Fast Slew Rates Evaluation Board OUTLINE DIMENSIONS Revision History