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AD8250

PRODUCTION

10 MHz G = 1, 2, 5, 10 iCMOS® Programmable Gain Instrumentation Amplifier

Data Sheet (Rev. C) Product Selection Table

Part Models: 3
1ku List Price: Starting From $5.90

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Overview

Small package: 10-lead MSOP
Programmable gains: 1, 2, 5, 10
Digital or pin-programmable gain setting
Wide supply: ±5 V to ±15 V
Excellent dc performance
High CMRR 98 dB (min), G = 10
Low gain drift: 10 ppm/°C (max)
Low offset drift: 1.7 μV/°C (max), G = 10
Excellent ac performance
Fast settling time: 615 ns to 0.001% (max)
High slew rate: 20 V/μs (min)
Low distortion: −110 dB THD at 1 kHz
High CMRR over frequency: 80 dB to 50 kHz (min)
Low noise: 18 nV/√Hz, G = 10 (max) Low power: 4 mA

The AD8250 is an instrumentation amplifier with digitally programmable gains that has GΩ input impedance, low output noise, and low distortion making it suitable for interfacing with sensors and driving high sample rate analog-to-digital converters (ADCs). It has a high bandwidth of 10 MHz, low THD of −110 dB and fast settling time of 615 ns (maximum) to 0.001%. Offset drift and gain drift are guaranteed to 1.7 μV/°C and 10 ppm/°C, respectively, for G = 10. In addition to its wide input common voltage range, it boasts a high common-mode rejection of 80 dB at G = 1 from dc to 50 kHz. The combination of precision dc performance coupled with high speed capabilities makes the AD8250 an excellent candidate for data acquisition. Furthermore, this monolithic solution simplifies design and manufacturing and boosts performance of instrumentation by maintaining a tight match of internal resistors and amplifiers.

The AD8250 user interface consists of a parallel port that allows users to set the gain in one of two ways (see Figure 1). A 2-bit word sent via a bus can be latched using the WR input. An alternative is to use the transparent gain mode where the state of the logic levels at the gain port determines the gain.

The AD8250 is available in a 10-lead MSOP package and is specified over the −40°C to +85°C temperature range, making it an excellent solution for applications where size and packing density are important considerations.

Applications

Data acquisition

Biomedical analysis

Test and measurement

Part Models: 3
1ku List Price: Starting From $5.90

Documentation

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. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
AD8250ARMZ	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8250ARMZ-R7	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
AD8250ARMZ-RL	10-Lead MSOP	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

May 15, 2012 - 10_0006 Halogen Free Material Change for mini SOIC Products
		PCN10_0006_Form Material_Report Qualification Report Summary Qualification Report Summary
AD8250ARMZ	PRODUCTION
AD8250ARMZ-R7	PRODUCTION
AD8250ARMZ-RL	PRODUCTION
Nov 16, 2009 - 06_0157 Qualification of the 8" H6 Thin Film BiPolar Wafer Fab Process at Analog Devices, Limerick, Ireland
		Material_Report PCN06_0157_Form RQR03599A
AD8250ARMZ	PRODUCTION
AD8250ARMZ-R7	PRODUCTION
AD8250ARMZ-RL	PRODUCTION
Sep 11, 2009 - 09_0146 Die revision of the AD8250, AD8251 and the AD8253 to include Polyimide coating
		Material_Report PCN09_0146_Form Polyimide Qual Data
AD8250ARMZ	PRODUCTION
AD8250ARMZ-R7	PRODUCTION
AD8250ARMZ-RL	PRODUCTION

This is the most up-to-date revision of the Data Sheet.

Software Resources

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Tools & Simulations

In-Amp Diamond Plot Tool

The Diamond Plot Tool is a web application that generates a configuration-specific Output Voltage Range vs. Input Common-Mode Voltage graph, also known as the Diamond Plot, for Analog Devices Instrumentation Amplifiers. Based on user inputs such as supply voltage, gain, and input signal range, the tool detects saturation and recommends in-amps for which the input signal is in-range and the configuration is valid. Avoid saturation, find the best in-amp for your design, and save time.

Open Tool

SPICE Model 1

AD8250 SPICE Macro Model

Signal Chain Designer

Signal Chain Designer is a web-based tool designed to create and simulate complex precision signal chains. See your circuit’s performance before you commit to your PCB: transfer function, noise, power consumption, input range, and DC error. Quickly experiment with different parts and architectures. Signal chains can be exported to LTspice for further analysis.

Open Tool

Evaluation Kits

AD8250 Evaluation Board

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Product Details

The AD8250-EVALZ board includes on-board gain setting switches to quickly demonstrate the AD8250’s software gain programmability. In addition, an external logic generator can be connected to the AD8250-EVALZ SMA ports to test the PGIA’s gain control. See the AD8250-EVALZ data sheet for complete insruction.

See AD8250 data sheet for specifications available on-line.

Resources

AD8250-EVALZ: Evaluation Board for G = 1, 2, 5, 10; 10 MHz, 20 V/μs Programmable Gain In-Amp Data Sheet
6/8/2007

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AD8250

Overview

Documentation

Data Sheet 1

Application Note 1

Technical Articles 2

Evaluation Design File 1

Technical Book 1

Analog Dialogue 2