Datasheet Analog Devices AD8220 — 数据表

FEATURES PIN CONFIGURATION
AD8220 –IN 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 5 –VS TOP VIEW
(Not to Scale) Figure 1. 10n INPUT BIAS CURRENT (A) 1n IBIAS 100p
10p
IOS 1p
0.1p 03579-059 Low input currents
10 pA maximum input bias current (B grade)
0.6 pA maximum input offset current (B grade)
High CMRR
100 dB CMRR (minimum), G = 10 (B grade)
80 dB CMRR (minimum) to 5 kHz, G = 1 (B grade)
Excellent ac specifications and low power
1.5 MHz bandwidth (G = 1)
14 nV/√Hz input noise (1 kHz)
Slew rate: 2 V/μs
750 μA quiescent supply current (maximum)
Versatile
MSOP package
Rail-to-rail output
Input voltage range to below negative supply rail
4 kV ESD protection
4.5 V to 36 V single supply
±2.25 V to ±18 V dual supply …

FEATURES PIN CONFIGURATION Supports defense and aerospace applications (AQEC standard)
Extended industrial temperature range: −55°C to +125°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Product change notification
Qualification data available on request APPLICATIONS
Medical instrumentation
Precision data acquisition
Transducer interfaces GENERAL DESCRIPTION
The AD8220-EP is the first single-supply, JFET input instrumentation amplifier available in an MSOP package. Designed to meet
the needs of high performance, portable instrumentation, the
AD8220-EP has a minimum common-mode rejection ratio
(CMRR) of 77 dB at dc and a minimum CMRR of 72 dB at 5 kHz
for G = 1. Maximum input bias current at 25°C is 25 pA and
remains below 100 nA over the entire extended industrial
temperature range. Despite the JFET inputs, the AD8220-EP
typically has a noise corner of only 10 Hz.
With the proliferation of mixed-signal processing, the number
of power supplies required in each system has grown. The
AD8220-EP is designed to alleviate this problem. The AD8220-EP
Rev. A 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 5 –VS 10000 1000 100 IBIAS 10
IOS 1 0.1 0.01 …

JFET Input Instrumentation Amplifier with
Rail-to-Rail Output in MSOP Package
AD8220
FEATURES PIN CONFIGURATION
AD8220 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 5 –VS
03579-005 –IN TOP VIEW
(Not to Scale) Figure 1. 10n INPUT BIAS CURRENT (A) 1n IBIAS 100p
10p
IOS 1p
0.1p 03579-059 Low input currents
10 pA maximum input bias current (B grade)
0.6 pA maximum input offset current (B grade)
High CMRR
100 dB CMRR (minimum), G = 10 (B grade)
80 dB CMRR (minimum) to 5 kHz, G = 1 (B grade)
Excellent ac specifications and low power
1.5 MHz bandwidth (G = 1)
14 nV/√Hz input noise (1 kHz)
Slew rate: 2 V/μs
750 μA quiescent supply current (maximum)
Versatile
MSOP package
Rail-to-rail output …

FEATURES PIN CONFIGURATION Supports defense and aerospace applications (AQEC standard)
Extended industrial temperature range: −55°C to +125°C
Controlled manufacturing baseline
1 assembly/test site
1 fabrication site
Product change notification
Qualification data available on request APPLICATIONS
Medical instrumentation
Precision data acquisition
Transducer interfaces GENERAL DESCRIPTION 1 8 +VS RG 2 7 VOUT RG 3 6 REF +IN 4 5 –VS 10000 1000 100
IBIAS
10
IOS
1 0.1 0.01
–75 –25 25 75 125 TEMPERATURE (°C) 15434-002 ENHANCED PRODUCT FEATURES AD8220-EP –IN Figure 1. INPUT BIAS CURRENT AND OFFSET CURRENT (pA) Low input currents
25 pA maximum input bias current
2 pA maximum input offset current
High CMRR
92 dB CMRR (minimum) to 60 Hz, G = 10
72 dB CMRR (minimum) at 5 kHz, G = 1
Excellent ac specifications and low power
1.5 MHz bandwidth (G = 1)
14 nV/√Hz input noise (1 kHz) …