18V, 22µA, 45nV/√Hz, RRIO, Dual Op Amp
The AD8546 and AD8548 are dual and quad micropower, high input impedance amplifiers optimized for low power and wide operating supply voltage range applications.
The AD8546/AD8548 rail-to-rail input/output (RRIO) feature provides increased dynamic range to drive low frequency data converters, making these amplifiers ideal for dc gain and buffering of sensor front ends or high impedance input sources used in wireless or remote sensors or transmitters.
The low supply current specification (22 µA) of the AD8546/ AD8548 over a wide operating voltage range of 2.7 V to 18 V or dual supplies (±1.35 V to ±9 V) makes these amplifiers useful 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/AD8548 are specified over the extended industrial temperature range of −40°C to +125°C. The AD8546 is available in an 8-lead MSOP package; the AD8548 is available in a 14-lead SOIC_N package.
- Portable medical equipment
- Remote sensors
- Transimpedance amplifiers
- Current monitors
- 4 mA to 20 mA loop drivers
- Buffer/level shifting
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This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
- EVAL-PRAOPAMP-2CPZ (Dual 8-Lead LFCSP) CP-8
- EVAL-PRAOPAMP-2RMZ (Dual 8-Lead MSOP) RM-8
- EVAL-PRAOPAMP-2RZ (Dual 8-Lead SOIC) R-8
MT-047: Op Amp Noise
Avoiding Op-Amp Instability Problems In Single-Supply Applications
(Analog Dialogue, Vol. 35, No. 2, March-May, 2001)
MS-2212: The Maximum Supply Current That Wasn't
Amplifiers for Signal Conditioning - Section 3
By Walt Kester, James Bryant, Walt Jung
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.