Difference Amplifiers

A difference amplifier is a special purpose amplifier designed to measure differential signals, otherwise known as a subtractor. A key feature of a difference amplifier is its ability to remove unwanted common mode signals, known as common mode rejection (CMR). Unlike most types of amplifiers, difference amplifiers are typically able to measure voltages beyond the supply rails, and are used in applications where large dc or ac common-mode voltages are present. They are ideal for current and voltage monitoring. Analog Devices offers a range of difference amplifiers, optimized for low distortion, low power, or high voltage performance.
Product Selection Table

Difference Amplifiers

  Hold Shift Key for secondary sorting
SortOrderPart## of AmpsCommon Mode In
(max)
(V)
Common Mode In
(min)
(V)
Input Beyond SupplyGain
(min)
(V/V)
Gain
(max)
(V/V)
BW - low gain
(typ)
(Hz)
Slew Rate
(typ)
(V/us)
Iq/Amp
(max)
(A)
Vs span
(min)
(V)
Vs span
(max)
(V)
US Price 1000 to 4999
($ US)
1LT6376 1 230 -230 Yes 10 10 160k 4.1 400µ 3.3 50 $3.20 (LT6376IMS#PBF)
2LT1997-3 1 160 -160 Yes -13 14 1.1M 750m 400µ 3.3 50 $3.14 (LT1997IMS-3#PBF)
3LT6375 1 270 -270 Yes 1 1 375k 2.4 400µ 3 50 $2.95 (LT6375IMS#PBF)
4AD8479 1 600 -600 Yes 1 1 130k 7.5 650µ 5 36 $2.81 (AD8479ARZ)
5ADA4830-2 2------ 300- 2.9 5.5 $0.85 (ADA4830-2BCPZ-R7)
6ADA4830-1Reference Circuit Available 1------ 300- 2.9 5.5 $0.61 (ADA4830-1BCPZ-R7)
7AD8208 1 45 -2 Yes 20 20 70k 1 3m 4.5 5.5 $1.67 (AD8208WBRMZ)
8AD8279 2 40.5 -45.3- 0.5 2 1M 1.3 350µ 2 36 $1.60 (AD8279ARZ)
9AD8209 1 45 -2 Yes 14 14 80k 1 3m 4.5 5.5 $1.67 (AD8209WBRMZ)
10AD8278 1 40.5 -45.3- 0.5 2 1M 1.4 200µ 2 36 $0.95 (AD8278ARMZ)
11AD8277 2 27 -30.2 Yes 1 1 550k 1.1 200µ 2 36 $1.60 (AD8277ARZ-RL)
12AD8276Reference Circuit Available 1 27 -30.2 Yes 1 1 550k 1.1 200µ 2 36 $0.95 (AD8276ARMZ)
13AD8271Reference Circuit Available 1 15.4 -15.4 Yes 0.5 2 20M 30 2.6m 5 36 $1.25 (AD8271ARMZ)
14AD8274Reference Circuit Available 1 40.5 -40.5 Yes 0.5 2 20M- 2.6m 5 36 $1.05 (AD8274ARMZ-RL)
15AD8273 2 40.5 -40.5 Yes 0.5 3 20M 20 2.5m 5 36 $1.60 (AD8273ARZ-R7)
16AD8270 2 15.4 -15.4- 0.5 2 20M 30 2.5m 5 36 $1.91 (AD8270ACPZ-RL)
17LT1996 1 60 -60 Yes 9 117 560k 120m 110µ 2.7 36 $1.39 (LT1996CMS#PBF)
18LT1995 1 15 -15 Yes 1 7 32M 1k 8.5m 5 30 $1.89 (LT1995CMS#PBF)
19LT1991 1 18 -18 Yes 1 13 560k 120m 110µ 2.4 40 $1.39 (LT1991CMS#PBF)
20LT1990 1 250 -250 Yes 1 10 100k 550m 180µ 2.4 36 $1.35 (LT1990CS8#PBF)
21AD628Reference Circuit Available 1 120 -120 Yes 0.1 100 600k 300m 1.6m 4.5 36 $2.00 (AD628ARZ)
22AD629Reference Circuit Available 1 270 -270 Yes 1 1 500k 2.1 1m 5 36 $3.19 (AD629ARZ-R7)
23AD626 1 24 -24 No 10 100 100k 220m 2m 2.4 10 $3.77 (AD626ARZ-REEL)
24AMP03 1 20 -20 Yes 1 1 3M 9.5 3.5m 10 36 $3.10 (AMP03GSZ-RL)