HomedatasheetAD628ARZ-R7

AD628ARZ-R7 Datasheet

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps
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Description

The AD628ARZ-R7 is a precision difference amplifier that combines excellent dc performance with high common-mode rejection over a wide range of frequencies. When used to scale high voltages, it allows simple conversion of standard control voltages or currents for use with single-supply ADCs. A wideband feedback loop minimizes distortion effects due to capacitor charging of Σ-Δ ADCs. A reference pin (VREF)provides a dc offset for converting bipolar to single-sided signals. The AD628ARZ-R7 converts +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA input signals to a single-ended output within theinput range of single-supply ADCs. The AD628ARZ-R7 has an input common mode and differential mode operating range of ±120 V. The high common mode, input impedance makes the device well suited for high voltage measurements across a shunt resistor. The inverting input of the buffer amplifier is available for making a remote Kelvin connection. A precision 10 kΩ resistor connected to an external pin is provided for either a low-pass filter or to attenuate large differential input signals. A single capacitor implements a lowpass filter. The AD628ARZ-R7 operates from single and dual supplies and is available in an 8-lead SOIC_N or an 8-lead MSOP. It operates over the standard industrial temperature range of −40°C to +85°C. AD628ARZ-R7 Features • High common-mode input voltage range ±120 V at VS = ±15 V • Gain range 0.1 to 100 • Operating temperature range: −40°C to +85°C • Supply voltage range Dual supply: ±2.25 V to ±18 V Single supply: 4.5 V to 36 V • Excellent ac and dc performance • Offset temperature stability RTI: 10 μV/°C maximum • Offset: ±1.5 V mV maximum • CMRR RTI: 75 dB minimum, dc to 500 Hz, G = +1 AD628ARZ-R7 Applications • High voltage current shunt sensing • Programmable logic controllers • Analog input front end signal conditioning +5 V, +10 V, ±5 V, ±10 V, and 4 to 20 mA • Isolation • Sensor signal conditioning • Power supply monitoring • Electrohydraulic controls • Motor controls
Features

Parameters

[{"Name":"Amplifier Type","Value":"Current Sense"},{"Name":"Slew Rate","Value":"0.3 V/μs"},{"Name":"-3db Bandwidth ","Value":"600kHz"},{"Name":"Current - Input Bias","Value":"1.5nA"},{"Name":"Voltage - Input Offset","Value":"150μV"},{"Name":"Current - Supply ","Value":"1.6mA"},{"Name":"Voltage - Supply, Single/Dual (±)","Value":"4.5 V ~ 36 V, ±2.25 V ~ 18 V"},{"Name":"Operating Temperature ","Value":"-40°C ~ 85°C"},{"Name":"","Value":""},{"Name":"","Value":""}]

Manufacturer information

SEIKO INSTRUMENTS

Seiko Instruments Inc. Is a Japanese company which head office is located in 8, Nakase 1-chome, Mihama-ku, Chiba-shi, Chiba 261-8507, Japan . It’s business lines are: Watches Business Watches, Watch Movements Electronic Components Business Quartz crystals, Micro batteries, etc. Precision Mechatronics Business Inkjet printer heads, Hard disk components, Thermal printers, Compact precision components, Machine tools, FA, Musical instrument accessories, Radiation detection and measurement systems, etc.


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