AD626 Analog Devices User Guide and Technical Specifications manual (Part 2) - Users Manual

Low Cost, Single-Supply

-M JE IO

Differential Amplifi er

AD626

FEATURES CONNECTION DIAGRAM Pin Selectable Gains of 10 and 100 8-Lead Plastic Mini-DIP (N) True Single-Supply Operation and SOIC (R) Packages Single-Supply Range of +2.4 V to +10 V Dual-Supply Range of
1.2 V to
6 V

Wide Output Voltage Range of 30 m V to 4.7 V +IN

Optional Low-Pass Filtering 1/6

Excellent DC Performance ANALOG

GND G = 30

Low Input Offset Voltage: 500 V Max Large Common-Mode Range: 0 V to +54 V –VS +VS Low Power: 1.2 m W (VS = +5 V)

Good CMR of 90 d B Typ

FILTER G=2 OUT

AC Performance AD626 Fast Settling Time: 24 s (0.01%) Includes Input Protection Series Resistive Inputs (RIN = 200 k)

range of this amplifi er is equal to 6 (+VS – 1 V) which pro vides a

RFI Filters Included

+24 V CMR while operating from a +5 V sup ply. Fur ther more,

Allows 50 V Continuous Overload

the AD626 features a CMR of 90 d B typ.

APPLICATIONS The amplifi er’s inputs are protected against continuous overload of

IN -M

Current Sensing up to 50 V, and RFI fi lters are included in the attenuator network. Interface for Pressure Transducers, Position Indicators, The output range is +0.03 V to +4.9 V using a +5 V sup ply. The Strain Gages, and Other Low Level Signal Sources amplifi er provides a preset gain of 10, but gains be tween 10 and

100 can be easily con fi g ured with an external re sis tor. Fur ther - PROD UCT DE SCRIP TION more, a gain of 100 is available by connecting the G = 100 pin to The AD626 is a low cost, true sin gle-sup ply dif fer en tial am pli fi er analog ground. The AD626 also offers low-pass fi lter capability by de signed for am pli fy ing and low-pass fi ltering small dif fer en tial connecting a ca pac i tor between the fi lter pin and analog ground.

voltages from sources having a large common-mode voltage.

The AD626A and AD626B operate over the industrial tem per a ture The AD626 can operate from either a single supply of +2.4 V to range of –40°C to +85°C. The AD626 is available in two 8-lead +10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode packages: a plastic mini-DIP and SOIC.

VS = +5V VCM FOR SINGLE AND DUAL SUPPLIES

G = 100 VS =
5V

G = 10 VS =
5V VCM FOR DUAL

SUPPLIES ONLY

FREQUENCY – Hz SUPPLY VOLTAGE –
V

Figure 1. Common-Mode Rejection vs. Frequency Figure 2. Input Common-Mode Range vs. Supply

REV. D

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