AD8277 Series

Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

Catalog

Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

Part	Mounting Type	Output Type	Voltage - Input Offset	Voltage - Supply Span (Min) [Min]	Package / Case [x]	Package / Case [y]	Package / Case	Slew Rate	Amplifier Type	Gain Bandwidth Product	Voltage - Supply Span (Max) [Max]	Current - Output / Channel	Operating Temperature [Max]	Operating Temperature [Min]	Number of Circuits	Channels per IC	Supplied Contents	Utilized IC / Part	Board Type	Current - Supply (Main IC)	-3db Bandwidth	Voltage - Supply, Single/Dual (±) [Max]	Voltage - Supply, Single/Dual (±) [Max]	Voltage - Supply, Single/Dual (±) [Min]	Voltage - Supply, Single/Dual (±)
Analog Devices AD8277BRZ-RL	Surface Mount	Rail-to-Rail	100 çV	2 V	0.154 in	3.9 mm	14-SOIC	1.1 V/çs	Instrumentation	550 kHz	36 V	15 mA	85 °C	-40 °C	2
Analog Devices AD8277ARZ	Surface Mount	Rail-to-Rail	100 çV	2 V	0.154 in	3.9 mm	14-SOIC	1.1 V/çs	Instrumentation	550 kHz	36 V	15 mA	85 °C	-40 °C	2
Analog Devices AD8277BRZ-R7	Surface Mount	Rail-to-Rail	100 çV	2 V	0.154 in	3.9 mm	14-SOIC	1.1 V/çs	Instrumentation	550 kHz	36 V	15 mA	85 °C	-40 °C	2
Analog Devices AD8277-EVALZ		Rail-to-Rail Single-Ended						1.1 V/çs	Difference			15 mA				2 - Dual	Board(s)	AD8277	Fully Populated	200 µA	550 kHz	36 V	18 V	2 V	2 V
Analog Devices AD8277BRZ	Surface Mount	Rail-to-Rail	100 çV	2 V	0.154 in	3.9 mm	14-SOIC	1.1 V/çs	Instrumentation	550 kHz	36 V	15 mA	85 °C	-40 °C	2

Catalog

Low Power, Wide Supply Range, Low Cost Unity-Gain Difference Amplifiers

Key Features

• Wide input range beyond supplies

• Rugged input overvoltage protection

• Low supply current: 200 μA maximum per channel

• Low power dissipation: 0.54 mW at VS= 2.7 V

• Bandwidth: 550 kHz

• CMRR: 86 dB minimum, dc to 10 kHz

• System offset voltage: ±2 μV/°C maximum (B Grade)

• Low gain drift: 1 ppm/°C maximum (B Grade)

• Enhanced slew rate: 1.1 V/μs

• Wide power supply rangeSingle supply: 2.0 V to 36 VDual supplies: ±2 V to ±18 V

• Single supply: 2.0 V to 36 V

• Dual supplies: ±2 V to ±18 V

Description

TheAD8276/AD8277 are general-purpose, unity-gain difference amplifiers intended for precision signal conditioning in power critical applications that require both high performance and low power. They provide exceptional 86 dB common-mode rejection ratio (CMRR) and high bandwidth while amplifying signals well beyond the supply rails. The on-chip resistors are laser trimmed for gain drift of 1 ppm/°C and high CMRR. The AD8276/AD8277 also have extremely low gain drift vs. temperature.The common-mode range of the amplifiers extends to almost double the supply voltage, making these amplifiers ideal for single-supply applications that require a high common-mode voltage range. The internal resistors and electrostatic discharge (ESD) circuitry at the inputs also provide overvoltage protection to the op amps.The AD8276/AD8277 are unity-gain stable. Although they are optimized for use as difference amplifiers, they can also be connected in high precision, single-ended configurations with G = −1, +1, or +2. The AD8276/AD8277 provide an integrated precision solution that has smaller size, lower cost, and improved performance than a discrete alternative.The AD8276/AD8277 operate on single supplies (2.0 V to 36 V) or dual supplies (±2 V to ±18 V). The maximum quiescent supply current is 200 μA per channel, which is ideal for battery-operated and portable systems.The AD8276 is available in the space-saving 8-lead mini small outline package (MSOP) and the standard small outline (SOIC) package, as well as in die form, and the AD8277 is offered in a 14-lead SOIC package. Both are specified for performance over the industrial temperature range of −40°C to +85°C and are fully RoHS compliant.ApplicationsVoltage measurement and monitoringCurrent measurement and monitoringDifferential output instrumentation amplifierPortable, battery-powered equipmentTest and measurement