AD8274 Series

Very Low Distortion, Precision Difference Amplifier

Catalog

Very Low Distortion, Precision Difference Amplifier

Part	Voltage - Supply Span (Max) [Max]	Gain Bandwidth Product	Slew Rate	Current - Output / Channel [custom]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case [custom]	Package / Case	Voltage - Supply Span (Min) [Min]	Amplifier Type	Supplier Device Package	Number of Circuits	Current - Supply	Output Type	Mounting Type	Voltage - Input Offset	Package / Case [y]	Package / Case [x]
Analog Devices AD8274ARMZ-RL	36 V	20 MHz	20 V/çs	90 mA	85 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	5 V	Programmable Gain	8-MSOP	1	2.3 mA	Single-Ended	Surface Mount	300 çV
Analog Devices AD8274ARZ	36 V	20 MHz	20 V/çs	90 mA	85 °C	-40 °C	8-SOIC			5 V	Programmable Gain	8-SOIC	1	2.3 mA	Single-Ended	Surface Mount	300 çV	3.9 mm	0.154 in
Analog Devices AD8274ARMZ-R7	36 V	20 MHz	20 V/çs	90 mA	85 °C	-40 °C	8-MSOP 8-TSSOP	0.118 in	3 mm	5 V	Programmable Gain	8-MSOP	1	2.3 mA	Single-Ended	Surface Mount	300 çV

Catalog

Very Low Distortion, Precision Difference Amplifier

Key Features

• Very low distortion0.00025% THD + N ( 20 kHz)0.0015% THD + N (100 kHz)Drives 600 Ω loads

• Excellent gain accuracy0.03% maximum gain error2 ppm/°C maximum gain driftGains of ½ or 2

• AC specifications20 V/µs minimum slew rate800 ns to 0.01% settling time

• High accuracy dc performance83 dB minimum CMRR700 µV maximum offset voltage

• 8-lead SOIC and MSOP packages

• Supply current: 2.6 mA maximum

• Supply range: ±2.5 V to ±18 V

Description

The AD8274 is a difference amplifier that delivers excellent ac and dc performance. Built on Analog Devices, Inc., proprietaryiPolar®process and laser-trimmed resistors, AD8274 achieves a breakthrough in distortion vs. current consumption and has excellent gain drift, gain accuracy, and CMRR.Distortion in the audio band is an extremely low 0.00025% (112 dB) at a gain of ½ and 0.00035% (109 dB) at a gain of 2 while driving a 600 Ω load.With supply voltages up to ±18 V (+36 V single supply), the AD8274 is well suited for measuring large industrial signals. Additionally, the part’s resistor divider architecture allows it to measure voltages beyond the supplies.With no external components, the AD8274 can be configured as a G = ½ or G = 2 difference amplifier. For single-ended applications that need high gain stability or low distortion performance, the AD8274 can also be configured for several gains ranging from −2 to +3.The excellent distortion and dc performance of the AD8274, along with its high slew rate and bandwidth, make it an excellent ADC driver. Because of the part’s high output drive, it also makes a very good cable driver.The AD8274 only requires 2.6 mA maximum supply current. It is specified over the industrial temperature range of −40°C to +85°C and is fully RoHS compliant. For the dual version, see theAD8273data sheet.ApplicationsADC driverHigh performance audioInstrumentation amplifier building blocksLevel translatorsAutomatic test equipmentSine/cosine encoders