AD8546 Datasheet, PDF (1/24 Pages) Analog Devices – 18 V, Micropower, CMOS, Rail-to-Rail Input/Output Operational Amplifier

FEATURES
Micropower at high voltage (18 V): 18 μA typical
Single-supply operation: 2.7 V to 18 V
Dual-supply operation: ±1.35 V to ±9 V
Low input bias current: 20 pA
Gain bandwidth product: 200 kHz
Unity-gain stable
APPLICATIONS
Portable medical equipment
Current monitors
4 mA to 20 mA loop drivers
Buffer/level shifting
Multipole filters
Remote/wireless sensors
Low power transimpedance amplifiers
18 V, Micropower, CMOS, Rail-to-Rail
Input/Output Operational Amplifier
AD8546
PIN CONFIGURATION
OUT A 1
–IN A 2
+IN A 3
V– 4
AD8546
TOP VIEW
(Not to Scale)
8 V+
7 OUT B
6 –IN B
5 +IN B
Figure 1. 8-Lead MSOP
GENERAL DESCRIPTION
The AD8546 is a dual, micropower, high impedance, rail-to-rail
input/output amplifier optimized for low power and wide operating
supply voltage range applications.
The AD8546 operates from 2.7 V up to 18 V with a typical supply
current of 18 μA. The combination of low supply current, high
input impedance, and rail-to-rail input and output makes the
AD8546 ideal for dc gain and buffering of sensor front ends or
high impedance input sources in wireless or remote sensors or
transmitters.
With its low power consumption and rail-to-rail input and
output, the AD8546 is ideally suited for a variety of battery-
powered, portable applications such as ECGs, pulse monitors,
glucose meters, smoke and fire detectors, vibration monitors,
and backup battery sensors.
The AD8546 is specified over the extended industrial temperature
range of −40°C to +125°C and is available in an 8-lead MSOP.
Table 1. Micropower Op Amps¹
Supply Voltage
Amplifier
5V
12 V to 16 V 36 V
Single
AD8500
AD8663
ADA4505-1
AD8505
AD8541
AD8603
Dual
AD8502
AD8667
OP295
ADA4505-2 OP281
ADA4062-2
AD8506
AD8542
AD8607
Quad
AD8504
AD8669
OP495
ADA4505-4 OP481
ADA4062-4
AD8508
AD8544
AD8609
1 _{See www.analog.com for the latest selection of micropower op amps.}
Rev. 0
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