AD626:  Low Cost, Single-Supply Differential Amplifier

The AD626 is a low cost, true single supply differential amplifier designed for amplifying and low-pass filtering small differential voltages from sources having a large common-mode ...More

AD626:  Low Cost, Single-Supply Differential Amplifier

Product Description

The AD626 is a low cost, true single supply differential amplifier designed for amplifying and low-pass filtering small differential voltages from sources having a large common-mode voltage.

The AD626 can operate from either a single supply of +2.4 V to +10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode range of this amplifier is equal to 6 (+VS - 1 V) which provides a +24 V CMR while operating from a +5 V supply. Furthermore, the AD626 features a CMR of 90 dB typ.

The amplifier's inputs are protected against continuous overload of up to 50 V, and RFI filters are included in the attenuator network. The output range is +0.03 V to +4.9 V using a +5 V supply. The amplifier provides a preset gain of 10, but gains between 10 to 100 can be easily configured with an external resistor. Furthermore, a gain of 100 is available by connecting the G = 100 pin to analog ground. The AD626 also offers low-pass filter capability by connecting a capacitor between the filter pin and analog ground.

The AD626A and AD626B operate over the industrial temperature range of -40°C to +85°C. The AD626 is available in two 8-pin packages: a plastic mini-DIP and SOIC.

Features

  • Pin Selectable Gains of 10 and 100
  • True Single-Supply Operation
    - Single-Supply Range of +2.4V to +10V
    - Dual-Supply Range of ±1.2V to ±6V
    - Wide Output Voltage Range of 30 mV to 4.7V
  • Includes Input Protection
    - Series Resistive Inputs (RIN = 200 kΩ)
    - RFI Filters Included
    - Allows 50V Continuous Overload
  • Optional Low-Pass Filtering
  • Excellent DC Performance
    - Low Input Offset Voltage: 500 µV Max
    - Large Common-Mode Range: 0V to +54V
    - Low Power: 1.2 mW (VS = +5V)
    - Good CMR of 90 dB Typ
  • AC Performance
    - Fast Settling Time: 24 µs (0.01%)

Diagrams

AD626 Diagram
Pin Configuration Diagram for AD626

Specifications

Single/Dual Supply Single/Dual
Voltage Supply (Vmax) ±6V
Gain Setting Method Pin
Gain Range (min to max) 90
Bandwidth G=10 (kHz typ) 100kHz
CMRR (dB) 66dB
Vnoise RTI 1-10 Hz µVp-p 2µV p-p
Temperature Range -40 to +85
Gain Error (%) max +1%
Supply Current (max) 2mA
Package DIP,SOIC
Vosi (µV) 500µV

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Part# Common Mode Range (V) Bandwidth G=10 (kHz typ) CMRR (dB) Gain Range (min to max) Voltage Supply (Vmin) Voltage Supply (Vmax) Supply Current (max) VosiTC (µV/deg C) Gain temp co. Temperature Range Package Price* (1000-4999)
AD22057 -1 to 24 30 80 20 +3 +26 0.5mA - - -40 to +125 DIP, SOIC $4.62
AD626 0 to 54 100 66 90 ±2.4 ±6 2mA 0.000006 150ppm/C -40 to +85 DIP, SOIC $3.70
AD628 +/- 100 600 77 100 ±5 ±18 1.6mA - - -40 to +85 SOIC $1.78
AD629 +/- 270 500 77 1 ±2.5 ±18 1mA - - -40 to +85 DIP, SOIC $2.84
AD8202 -12 to 30 50 82 20 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 Die, SOIC, SOP $1.51
AD8203 -12 to 30 60 82 14 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 SOP $1.37
AD8205 -2 to 65 50 78 50 +4.5 +5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.51
AD8206 -2 to 65 100 76 20 +4.5 +5.5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.37
AD8210 -2 to 65 500 100 20 +4.5 +5.5 1.5mA 10 20ppm/C -40 to +125 SOIC $1.81
AD8211 -2 to 65 500 120 20 - - 2mA 12 20ppm/C -40 to +125 SOT $0.81
AD8212 7 to 65 1000 100 1,000 +7 +65 720µA 10 - -40 to +125 MSOP $0.93
AD8213 -2 to 65 500 100 20 +4.5 +5.5 2.5mA 12 10ppm/C -40 to +125 MSOP $2.01
AD8214 5 to 65 - 80 100 +5 +65 1.2mA 15 - -40 to +125 MSOP $0.76
AD8215 -2 to 65 450 100 20 - - 2.2mA 6 15ppm/C -40 to +125 SOIC $1.21
AD8216 -4 to 65 3000 90 3 - - 2mA 10 10ppm/C -40 to +125 SOIC $1.62
AD8228 - 650 100 10,100 - - - - - -40 to +85 - $3.03
AD8270 -Vs to +Vs 10000 98 1.5 - - 2.5mA 1.5 1ppm/C -40 to +125 - $1.89
AD8273 +/- 40 20000 86 1.5 - - 2.5mA 3 2ppm/C -40 to +125 - $1.67
AD8290 - - 120 50 - - 4.68mA - 15ppm/C - - $1.52
AD8553 - 1 100 10,000 +1.8 +5.5 1.3mA - - -40 to +85 MSOP $1.32
ADM4073 2 to 28 1800 90 40 +3 +28 - - - -40 to +125 SOT $0.99
AMP03 +/- 20 3000 85 1 ±5 ±15 2.5mA - - -40 to +85 - $2.81

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
** Pricing is currently unavailable. Click on the product number to see the Product Page for additional information.

Pricing, Packaging & Availability

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  • Pre-Release: The model has not been released to general production, but samples may be available.
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The package for this IC (i.e. DIP, SOIC, BGA). An Evaluation Board is a board engineered to show the performance of the model, the part is included on the board.

For detailed drawings and chemical composition please consult our  Package Site

Pin Count
Pin Count is the number of pins, balls, or pads on the device. Pin-out diagrams & pin function descriptions may be found in the datasheet.

Temperature Range
This is the acceptable operating range of the device. The various ranges specified are as follows:
  • Commercial: 0 to +70 degrees Celsius
  • Military : -55 to +125 degrees Celsius
  • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
  • Automotive: -40 to +125 degrees Celsius
Price
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.

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Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

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.

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