差动放大器
差动放大器是一种特殊用途放大器，设计用于测量差分信号，也称为减法器。差动放大器能够移除干扰共模信号，采用的方法称为共模抑制(CMR)，这是它的一项主要功能。与大多数类型的放大器不同，差动放大器通常能够测量超出供电轨的电压，适合存在较大直流或交流共模电压的应用。ADI公司提供一系列差动放大器，为实现低失真、低功耗或高电压性能进行了优化。
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差动放大器
| SortOrder | Part# | # of Amps | Common Mode In (min) (V) | Common Mode In (max) (V) | Input Beyond Supply | Gain (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) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LT1997-1 | 1 | -300m | 80 | Yes | 0.141 | 80 | 650k | 4 | 400µ | 3.3 | 50 | $3.14 (LT1997IMS-1#PBF) |
| 2 | LT1997-2 | 1 | -255 | 255 | Yes | 0.0455 | 0.55 | 1M | 750m | 400µ | 3.3 | 50 | $3.14 (LT1997IMS-2#PBF) |
| 3 | LT1997-3 | 1 | -160 | 160 | Yes | 0.077 | 13 | 1.1M | 750m | 400µ | 3.3 | 50 | $3.14 (LT1997IMS-3#PBF) |
| 4 | LT6376 | 1 | -230 | 230 | Yes | 10 | 10 | 160k | 4.1 | 400µ | 3.3 | 50 | $3.20 (LT6376IMS#PBF) |
| 5 | LT6375 | 1 | -270 | 270 | Yes | 1 | 1 | 375k | 2.4 | 400µ | 3.3 | 50 | $2.95 (LT6375IMS#PBF) |
| 6 | AD8479 | 1 | -600 | 600 | Yes | 1 | 1 | 130k | 7.5 | 650µ | 5 | 36 | $2.81 (AD8479ARZ) |
| 7 | ADA4830-2 | 2 | -10 | 9.5 | Yes | 0.5 | 0.5 | 84M | 300 | 10m | 2.9 | 5.5 | $0.85 (ADA4830-2BCPZ-R7) |
| 8 | ADA4830-1 | 1 | -10 | 9.5 | Yes | 0.5 | 0.5 | 84M | 300 | 10m | 2.9 | 5.5 | $0.61 (ADA4830-1BCPZ-R7) |
| 9 | AD8208 | 1 | -2 | 45 | Yes | 20 | 20 | 70k | 1 | 3m | 4.5 | 5.5 | $1.67 (AD8208WBRMZ) |
| 10 | AD8279 | 2 | -45.3 | 40.5 | Yes | 0.5 | 2 | 1M | 1.3 | 350µ | 2 | 36 | $1.60 (AD8279ARZ) |
| 11 | AD8209 | 1 | -2 | 45 | Yes | 14 | 14 | 80k | 1 | 3m | 4.5 | 5.5 | $1.67 (AD8209WBRMZ) |
| 12 | AD8278 | 1 | -45.3 | 40.5 | Yes | 0.5 | 2 | 1M | 1.4 | 200µ | 2 | 36 | $0.95 (AD8278ARMZ) |
| 13 | AD8277 | 2 | -30.2 | 27 | Yes | 1 | 1 | 550k | 1.1 | 200µ | 2 | 36 | $1.60 (AD8277ARZ) |
| 14 | AD8276 | 1 | -30.2 | 27 | Yes | 1 | 1 | 550k | 1.1 | 200µ | 2 | 36 | $0.95 (AD8276ARMZ) |
| 15 | AD8271 | 1 | -15.4 | 15.4 | Slightly | 0.5 | 2 | 20M | 30 | 2.6m | 5 | 36 | $1.25 (AD8271ARMZ) |
| 16 | AD8275 | 1 | -12.3 | 12 | Yes | 0.2 | 0.2 | 15M | 25 | 2.3m | 3.3 | 15 | $1.60 (AD8275ARMZ) |
| 17 | AD8274 | 1 | -40.5 | 40.5 | Yes | 0.5 | 2 | 20M | - | 2.6m | 5 | 36 | $1.05 (AD8274ARMZ) |
| 18 | AD8273 | 2 | -40.5 | 40.5 | Yes | 0.5 | 3 | 20M | 20 | 2.5m | 5 | 36 | $1.60 (AD8273ARZ) |
| 19 | AD8270 | 2 | -15.4 | 15.4 | Slightly | 0.5 | 2 | 20M | 30 | 2.5m | 5 | 36 | $1.91 (AD8270ACPZ-R7) |
| 20 | LT1996 | 1 | -60 | 60 | Yes | 9 | 117 | 560k | 120m | 110µ | 2.7 | 36 | $1.39 (LT1996CMS#PBF) |
| 21 | LT1995 | 1 | -15 | 15 | Slightly | 1 | 7 | 32M | 1k | 8.5m | 5 | 30 | $1.89 (LT1995CMS#PBF) |
| 22 | LT1991 | 1 | -18 | 18 | Yes | 1 | 13 | 560k | 120m | 110µ | 2.4 | 40 | $1.39 (LT1991CMS#PBF) |
| 23 | LT1990-10 | 1 | -250 | 250 | No | 10 | 10 | 100k | 400m | 180µ | 2.4 | 36 | $1.62 (LT1990IMS8-10#PBF) |
| 24 | LT1990 | 1 | -250 | 250 | Yes | 1 | 10 | 100k | 550m | 180µ | 2.4 | 36 | $1.35 (LT1990CS8#PBF) |
| 25 | AD628 | 1 | -120 | 120 | Yes | 0.1 | 100 | 600k | 300m | 1.6m | 4.5 | 36 | $2.00 (AD628ARMZ) |
| 26 | AD629 | 1 | -270 | 270 | Yes | 1 | 1 | 500k | 2.1 | 1m | 5 | 36 | $3.19 (AD629ARZ) |
| 27 | AD626 | 1 | -24 | 24 | Yes | 10 | 100 | 100k | 220m | 2m | 2.4 | 10 | $4.34 (AD626ARZ) |
| 28 | AMP03 | 1 | -20 | 20 | Yes | 1 | 1 | 3M | 9.5 | 3.5m | 10 | 36 | $3.26 (AMP03GSZ) |
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