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Datasheet Analog Devices AD8221BR-REEL7

Manufacturer:Analog Devices
Series:AD8221
Part Number:AD8221BR-REEL7

Precision Instrumentation Amplifier

Datasheets

  • Download » Datasheet, PDF, 643 Kb, Revision: C
    AD8221: Precision Instrumentation Amplifier Data Sheet
    Docket ↓
    Precision Instrumentation Amplifier
    AD8221
    CONNECTION DIAGRAM Easy to use
    Available in space-saving MSOP
    Gain set with 1 external resistor (gain range 1 to 1000)
    Wide power supply range: ±2.3 V to ±18 V
    Temperature range for specified performance:
    -40°C to +85°C
    Operational up to 125°C 1
    Excellent AC specifications
    80 dB minimum CMRR to 10 kHz (G = 1)
    825 kHz, –3 dB bandwidth (G = 1)
    2 V/µs slew rate
    Low noise
    8 nV/√Hz, @ 1 kHz, maximum input voltage noise
    0.25 µV p-p input noise (0.1 Hz to 10 Hz)
    High accuracy dc performance (AD8221BR)
    90 dB minimum CMRR (G = 1)
    25 µV maximum input offset voltage
    0.3 µV/°C maximum input offset drift
    0.4 nA maximum input bias current –IN 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 AD8221 5 –VS TOP VIEW 03149-001 FEATURES Figure 1.
    120
    110 ...

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Manufacturer's Classification

  • Amplifiers > Instrumentation Amplifiers

Other Names: AD8221BRREEL7, AD8221BR REEL7

Docket:
Precision Instrumentation Amplifier
AD8221
CONNECTION DIAGRAM Easy to use
Available in space-saving MSOP
Gain set with 1 external resistor (gain range 1 to 1000)
Wide power supply range: ±2.3 V to ±18 V
Temperature range for specified performance:
-40°C to +85°C
Operational up to 125°C 1
Excellent AC specifications
80 dB minimum CMRR to 10 kHz (G = 1)
825 kHz, –3 dB bandwidth (G = 1)
2 V/µs slew rate
Low noise
8 nV/√Hz, @ 1 kHz, maximum input voltage noise
0.25 µV p-p input noise (0.1 Hz to 10 Hz)
High accuracy dc performance (AD8221BR)
90 dB minimum CMRR (G = 1)
25 µV maximum input offset voltage
0.3 µV/°C maximum input offset drift
0.4 nA maximum input bias current –IN 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 AD8221 5 –VS TOP VIEW 03149-001 FEATURES Figure 1.
120
110
AD8221 CMRR (dB) 100
90 COMPETITOR 1
80
70
60
COMPETITOR 2 40
10 APPLICATIONS
Weigh scales
Industrial process controls
Bridge amplifiers
Precision data acquisition systems
Medical instrumentation
Strain gages
Transducer interfaces GENERAL DESCRIPTION
The AD8221 is a gain programmable, high performance
instrumentation amplifier that delivers the industry’s highest
CMRR over frequency in its class. The CMRR of instrumentation
amplifiers on the market today falls off at 200 Hz. In contrast,
the AD8221 maintains a minimum CMRR of 80 dB to 10 kHz
for all grades at G = 1. High CMRR over frequency allows the
AD8221 to reject wideband interference and line harmonics,
greatly simplifying filter requirements. Possible applications
include precision data acquisition, biomedical analysis, and
aerospace instrumentation. 100 1k 10k 100k FREQUENCY (Hz) 03149-002 50 Figure 2. Typical CMRR vs. Frequen...

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