ADA4622-2 Datasheet, PDF (1/28 Pages) Analog Devices – 30 V, 7.5 MHz, Low Bias Current, Single-Supply, RRO, Precision Op Amp

Data Sheet
30 V, 7.5 MHz, Low Bias Current,
Single-Supply, RRO, Precision Op Amp
ADA4622-2
FEATURES
Next generation of the AD822
Wide bandwidth: 8 MHz typical
High slew rate: +23 V/µs/−18 V/µs typical
Low input bias current: ±10 pA maximum at TA = 25°C
Low offset voltage
A grade: ±0.8 mV maximum at TA = 25°C
B grade: ±0.35 mV maximum at TA = 25°C
Low offset voltage drift
A grade: ±2 µV/°C typical, ±15 µV/°C maximum
B grade: ±2 µV/°C typical, ±5 µV/°C maximum
Input voltage range includes V− pin
Rail-to-rail output
Input electromagnetic interference (EMI) filters
90 dB typical at f = 1000 MHz and f = 2400 MHz
Industry-standard package and pinouts
APPLICATIONS
High output impedance sensor interfaces
Photodiode sensor interfaces
Transimpedance amplifiers
ADC drivers
Precision filters and signal conditioning
GENERAL DESCRIPTION
The ADA4622-2 is the next generation of the AD822 single-
supply, rail-to-rail output (RRO), precision JFET input op amp.
The ADA4622-2 includes many improvements that make it
desirable as an upgrade without compromising the flexibility
and ease of use that makes the AD822 useful for a wide variety
of applications.
The input voltage range includes the negative supply and the
output swings rail-to-rail. Input EMI filters are added to
increase the signal robustness in the face of closely located
switching noise sources.
The speed in terms of bandwidth and slew rate is increased
along with a strong output drive to improve settling time
performance and enable the device to drive the inputs of
modern single-ended successive approximation register analog-
to-digital converters (SAR ADCs).
PIN CONFIGURATION
OUT A 1
–IN A 2
+IN A 3
V– 4
ADA4622-2
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. 8-Lead, SOIC_N (R Suffix) and 8-Lead, MSOP (RM Suffix)
Pin Configuration
Voltage noise is reduced, both broadband by 25% and 1/f by
half, while holding the supply current constant. DC precision is
improved over the AD822 with half the offset and a maximum
thermal drift specification is added to the ADA4622-2. The
common-mode rejection ratio is improved over the AD822 to
make the ADA4622-2 more suitable than the AD822 when used
in noninverting gain and difference amplifier configurations.
The ADA4622-2 is specified for operation over the extended
industrial temperature range of −40°C to +125°C and operates
from 5 V to 30 V with specifications at +5 V, ±5 V, and ±15 V.
The ADA4622-2 is available in 8-lead SOIC and 8-lead MSOP
packages.
Rev. 0
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