AD8428 PDF Datasheet
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Description
This is Instrumentation Amplifier. Data Sheet
FEATURES
Fixed gain of 2000 Access to internal nodes provides flexibility Low noise: 1.5 nV, √H- input voltage noise High accuracy dc performance
Gain drift: 5 ppm, °C Offset drift: 0.3 μV, °C Gain accuracy: 0.05% CMRR: 140 dB min Excellent ac specifications Bandwidth: 3.5 MH- Slew rate: 40 V, μs Power supply range: ±4 V to ±18 V 8-lead SOIC package ESD protection: 5000 V (HBM) Temperature range for specified performance: 40°C to +85°C Operational up to 125°C
APPLICATIONS
Sensor interface Medical instrumentation Patient monitoring
Low Noise, Low Gain Drift, G = 2000 Instrumentation Amplifier AD8428
FUNCTIONAL BLOCK DIAGRAM
+VS FIL
IN
3kΩ 6kΩ
6kΩ
120kΩ
30.15Ω
OUT
09731-001
3kΩ 6kΩ
6kΩ
120kΩ
REF
+IN
AD8428
VS +FIL
Figure 1.
Table 1. Instrumentation Amplifiers by Category1
General- Zero Purpose Drift
Military Low
Grade
Power
Low Noise
AD8220 AD8231 AD620
AD627
AD8428
AD8221 AD8290 AD621
AD623
AD8429
AD8222 AD8293.