仪表放大器
ADI公司的仪表放大器是精密增益模块，输入为差分式，输出可以是差分式，也可以是相对于参考端的单端式。这些器件能够放大两个输入信号电压之间的差值，同时抑制两个输入端共有的任何信号。仪表放大器广泛用于许多工业、测量、数据采集和医疗应用，这些应用要求在高噪声环境下保持直流精度和增益精度，而且其中存在大共模信号（通常为交流电力线频率）。
产品选型表
仪表放大器钻石图工具
钻石图工具是一个网络应用程序，可生成特定配置的输出电压范围与输入共模电压关系图，也被称为钻石图，适用于ADI仪表放大器。 根据电源电压、增益和输入信号范围等用户输入参数，该工具可检测设计饱和情况，推荐合适的仪表放大器使输入信号在规格范围内并且配置的电路是有效的。 该工具能避免设计饱和，找到适合设计的最佳仪表放大器，节省设计时间。
技术文章
- 驱动高精度模数转换器
- 简单分立式单端转差分精密仪表放大器电路：具有高共模输入范围，节省50%功耗
- 预测并追求您的极限！
- Designing High Performance Systems with Low Noise Instrumentation Amplifiers
- 微功耗IC免除心率监护仪的后顾之忧
在线研讨会
解决方案通报和手册
视频
更多...技术指南
- MT-226：工程经理初次使用Multisim PDF
- MT-070：仪表放大器输入RFI保护 PDF
- MT-069：仪表放大器输入过压保护 PDF
- MT-067：自稳零仪表放大器 PDF
- MT-066: 仪表放大器桥接电路误差预算分析 PDF
设计手册
仪表放大器
| SortOrder | Part# | # of Amps | Vos (max) (V) | Vos TC (max) (V/°C) | Gain Set | Gain (min) (V/V) | Gain (max) (V/V) | BW - low gain (typ) (Hz) | Ibias (max) (A) | Input Voltage Noise (typ) (V/rtHz) | Iq/Amp (max) (A) | Vs span (min) (V) | Vs span (max) (V) | Price (1000+) ($ US) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | LTC6373 | 1 | 80µ | 1.5µ | Pin Strap | 0.25 | 16 | 6.5M | 25p | 8n | 4.75m | 9 | 36 | $4.67 (LTC6373IDFM#PBF) |
| 2 | LT6372-1 | 1 | 60µ | 600n | Resistor | 1 | 1000 | 3.1M | 800p | 7n | 2.65m | 4.75 | 35 | $3.75 (LT6372IMSE-1#PBF) |
| 3 | LT6372-0.2 | 1 | 60µ | 600n | Resistor | 0.2 | 200 | 4M | 800p | 7n | 2.65m | 4.75 | 35 | $3.75 (LT6372IMSE-0.2#PBF) |
| 4 | ADA4254 | 1 | 14µ | 8n | Digital | 0.0625 | 176 | 1.8M | 1.5n | 17n | 2.29m | 10 | 56 | $2.90 (ADA4254ACPZ) |
| 5 | LT6370 | 1 | 25µ | 300n | Resistor | 1 | 10000 | 3.1M | 400p | 7n | 2.75m | 4.75 | 35 | $2.69 (LT6370IDD#PBF) |
| 6 | AD8233 | 1 | 6m | - | Resistor | 100 | 1100 | 1k | 200p | 150n | 70µ | 1.7 | 3.5 | $1.49 (AD8233ACBZ-R7) |
| 7 | ADA4558 | 2 | 20µ | 10n | Digital | 2.94 | 971.1 | 550k | - | - | 8.2m | 6 | 18 | $3.35 (ADA4558WHCPZ-R7) |
| 8 | AD8229S | 1 | 100µ | 1µ | Resistor | 1 | 1000 | 15M | 175n | 1.1n | 9m | 8 | 34 | - |
| 9 | AD8422 | 1 | 25µ | 300n | Resistor | 1 | 1000 | 2.2M | 500p | 8n | 300µ | 4.6 | 36 | $2.10 (AD8422ARMZ) |
| 10 | AD8232 | 1 | 8m | 10µ | Fixed Gain | 100 | 100 | 2k | 200p | 100n | 230µ | 2 | 3.5 | $1.36 (AD8232ACPZ-R7) |
| 11 | AD8237 | 1 | 75µ | 300n | Resistor | 1 | 1000 | 200k | 650p | 68n | 130µ | 1.8 | 5.5 | $0.93 (AD8237ARMZ) |
| 12 | AD8421 | 1 | 25µ | 200n | Resistor | 1 | 10000 | 10M | 500p | 3n | 2.3m | 5 | 36 | $2.35 (AD8421ARMZ) |
| 13 | AD8420 | 1 | 150µ | 1µ | Resistor | 1 | 1000 | 250k | 27n | 55n | 100µ | 2.7 | 36 | $0.89 (AD8420ARMZ) |
| 14 | AD8428 | 1 | 25µ | 300n | Fixed Gain | 2000 | 2000 | 3.5M | 50n | 1.3n | 6.8m | 8 | 36 | $6.60 (AD8428ARZ) |
| 15 | AD8426 | 2 | 100µ | 1µ | Resistor | 1 | 1000 | 1.5M | 30n | 24n | 425µ | 2.2 | 36 | $2.20 (AD8426ACPZ-R7) |
| 16 | AD8429 | 1 | 50µ | 300n | Resistor | 1 | 10000 | 15M | 150n | 1n | 7m | 8 | 36 | $3.50 (AD8429ARZ) |
| 17 | AD8229 | 1 | 100µ | 1µ | Resistor | 1 | 1000 | 15M | 70n | 1n | 7m | 8 | 34 | $150.00 (AD8229HRZ) |
| 18 | AD8235 | 1 | 2.5m | 700n | Resistor | 5 | 200 | 23k | 50p | 76n | 40µ | 1.8 | 5.5 | $1.59 (AD8235ACBZ-P7) |
| 19 | AD8236 | 1 | 3.5m | 2.5µ | Resistor | 5 | 200 | 23k | 10p | 76n | 40µ | 1.8 | 5.5 | $0.99 (AD8236ARMZ) |
| 20 | AD8227 | 1 | 100µ | 1µ | Resistor | 5 | 1000 | 250k | 27n | 24n | 425µ | 2.2 | 36 | $1.04 (AD8227ARMZ) |
| 21 | AD8226 | 1 | 50µ | 1µ | Resistor | 1 | 1000 | 1.5M | 27n | 22n | 425µ | 2.2 | 36 | $1.10 (AD8226ARMZ) |
| 22 | AD8295 | 1 | 60µ | 300n | Resistor | 1 | 1000 | 1.2M | 800p | 8n | 2.3m | 4.6 | 36 | $2.89 (AD8295ACPZ-R7) |
| 23 | AD8223 | 1 | 100µ | 1µ | Resistor | 5 | 1000 | 125k | 25n | 30n | 500µ | 3 | 24 | $1.05 (AD8223ARZ) |
| 24 | AD8293G80 | 1 | 50µ | 300n | Fixed Gain | 80 | 80 | 500k | 2n | 35n | 1.3m | 1.8 | 5.5 | $0.50 (AD8293G80ARJZ-R7) |
| 25 | AD8293G160 | 1 | 50µ | 300n | Fixed Gain | 160 | 160 | 500k | 2n | 35n | 1.3m | 1.8 | 5.5 | $0.50 (AD8293G160ARJZ-R7) |
| 26 | AD8253 | 1 | 1.05m | 6.2µ | Digital | 1 | 1000 | 10M | 50n | 10n | 5.3m | 10 | 30 | $4.95 (AD8253ARMZ) |
| 27 | AD8228 | 1 | 50µ | 800n | Pin Strap | 10 | 100 | 650k | 600p | 8n | 1m | 4.6 | 36 | $3.03 (AD8228ARMZ) |
| 28 | AD8557 | 1 | 12µ | 65n | Digital | 28 | 1300 | 600k | 25n | 32n | - | 2.7 | 5.5 | $2.19 (AD8557ARZ) |
| 29 | AD8290 | 1 | 35m | 300µ | Fixed Gain | 50 | 50 | 250 | 1n | - | 1.8m | 2.6 | 5.5 | $1.52 (AD8290ACPZ-R7) |
| 30 | AD8251 | 1 | 800µ | 6.2µ | Digital | 1 | 8 | 10M | 30n | 18n | 4.5m | 10 | 34 | $5.01 (AD8251ARMZ) |
| 31 | AD8231 | 1 | 15µ | 50n | Digital | 1 | 128 | 2.7M | 500p | 32n | 5m | 3 | 6 | $1.71 (AD8231ACPZ-R7) |
| 32 | AD8250 | 1 | 800µ | 6.2µ | Digital | 1 | 10 | 10M | 30n | 18n | 4.5m | 10 | 30 | $5.01 (AD8250ARMZ) |
| 33 | AD8224 | 2 | 175µ | 5µ | Resistor | 1 | 1000 | 1.5M | 10p | 14n | 800µ | 4.5 | 36 | $4.17 (AD8224ACPZ-R7) |
| 34 | AD8222 | 2 | 60µ | 300n | Resistor | 1 | 10000 | 1.2M | 1n | 8n | 1.1m | 4.6 | 36 | $3.73 (AD8222HACPZ-R7) |
| 35 | AD8220 | 1 | 125µ | 5µ | Resistor | 1 | 1000 | 1.5M | 25p | 14n | 750µ | 4.5 | 36 | $2.55 (AD8220ARMZ) |
| 36 | AD8553 | 1 | 375µ | 3µ | Resistor | 1 | 1000 | 1k | 1n | 30n | 1.2m | 1.8 | 5.5 | $1.32 (AD8553ARMZ) |
| 37 | AD8556 | 1 | 12µ | 65n | Digital | 70 | 1280 | 280k | 54n | 32n | 2.7m | 5 | 5.5 | $2.97 (AD8556ARZ) |
| 38 | AD8230 | 1 | 10µ | 50n | Resistor | 2 | 1000 | 2k | 1n | 240n | 4m | 8 | 16 | $2.99 (AD8230YRZ) |
| 39 | LTC6915 | 1 | 10µ | 50n | Digital | 1 | 4096 | 200k | 10n | 50n | 1.6m | 2.7 | 11 | $2.44 (LTC6915CDE#PBF) |
| 40 | AD8221 | 1 | 25µ | 300n | Resistor | 1 | 1000 | 825k | 400p | 8n | 1.2m | 4.6 | 36 | $2.21 (AD8221ARMZ) |
| 41 | LTC6800 | 1 | 100µ | 250n | Resistor | 1 | - | 200k | 10n | 50n | 1.2m | 2.7 | 5.5 | $1.55 (LTC6800HMS8#PBF) |
| 42 | AD8225 | 1 | 150µ | 2µ | Fixed Gain | 5 | 5 | 900k | 1.2n | 45n | 1.2m | 3.4 | 36 | $3.36 (AD8225ARZ) |
| 43 | LT1789-10 | 1 | 3m | 700n | Resistor | 10 | 1000 | 60k | 40n | 48n | 95µ | 2.2 | 36 | $3.20 (LT1789CS8-10#PBF) |
| 44 | LT1789-1 | 1 | 750µ | 700n | Resistor | 1 | 1000 | 60k | 40n | 48n | 95µ | 2.2 | 36 | $3.20 (LT1789CS8-1#PBF) |
| 45 | LTC2053-SYNC | 1 | 10µ | 50n | Resistor | 1 | - | 200k | 10n | 50n | 1.3m | 2.7 | 11 | $3.90 (LTC2053IMS8-SYNC#PBF) |
| 46 | LTC2053 | 1 | 10µ | 50n | Resistor | 1 | - | 200k | 10n | 50n | 1.3m | 2.7 | 11 | $3.20 (LTC2053CMS8#PBF) |
| 47 | LT1168 | 1 | 40µ | 300n | Resistor | 1 | 10000 | 400k | 250p | 10n | 530µ | 4.6 | 40 | $3.70 (LT1168CN8#PBF) |
| 48 | LT1920 | 1 | 125µ | 1µ | Resistor | 1 | 10000 | 800k | 2n | 7.5n | 1.3m | 4.6 | 40 | $3.05 (LT1920CN8#PBF) |
| 49 | AD627 | 1 | 125µ | 1µ | Resistor | 5 | 1000 | 80k | 10n | 38n | 85µ | 2.2 | 36 | $2.87 (AD627ARZ) |
| 50 | LT1167-1 | 1 | 40µ | 300n | Resistor | 1 | 10000 | 1M | 350p | 7.5n | 1.3m | 4.6 | 40 | $3.20 (LT1167CS8-1#PBF) |
| 51 | LT1167 | 1 | 40µ | 300n | Resistor | 1 | 10000 | 1M | 350p | 7.5n | 1.3m | 4.6 | 40 | $3.20 (LT1167CN8#PBF) |
| 52 | AD623 | 1 | 100µ | 1µ | Resistor | 1 | 1000 | 800k | 25n | 35n | 550µ | 2.7 | 12 | $1.60 (AD623ARMZ) |
| 53 | AD622 | 1 | 125µ | 1µ | Resistor | 1 | 1000 | 1M | 5n | 12n | 1.3m | 5.2 | 36 | $2.94 (AD622ARZ) |
| 54 | AMP04 | 1 | 400µ | 3µ | Resistor | 1 | 1000 | 700k | 30n | 270n | 900µ | 5 | 36 | $6.44 (AMP04FSZ) |
| 55 | AD621 | 1 | 125µ | 1.5µ | Pin Strap | 10 | 100 | 800k | 1n | 9n | 1.3m | 4.6 | 36 | $4.79 (AD621ARZ) |
| 56 | AD620 | 1 | 50µ | 600n | Resistor | 1 | 10000 | 1M | 1n | 9n | 1.3m | 4.6 | 36 | $3.91 (AD620ARZ) |
| 57 | LT1102 | 1 | 600µ | 8µ | Fixed Gain | 10 | 100 | 35M | 40p | 19n | 5m | 18 | 40 | $4.75 (LT1102CN8#PBF) |
| 58 | LTC1100 | 1 | 10µ | 100n | Fixed Gain | 10 | 100 | 1.8M | 50p | 35n | 2.8m | 4.75 | 18 | $6.15 (LTC1100CN8#PBF) |
| 59 | AMP02 | 1 | 100µ | 2µ | Resistor | 1 | 10000 | 1.2M | 10n | 9n | 6m | 9 | 36 | $7.08 (AMP02FSZ) |
| 60 | LT1101 | 1 | 160µ | 2µ | Fixed Gain | 10 | 100 | 370k | 8n | 43n | 130µ | 2.3 | 44 | $4.75 (LT1101CN8#PBF) |
| 61 | AD625 | 1 | 25µ | 250n | Resistor | 1 | 10000 | 650k | 15n | 4n | 5m | 12 | 36 | $14.28 (AD625JNZ) |
| 62 | AMP01S | 1 | 100µ | 1µ | Resistor | 1 | 10000 | - | - | - | 4.8m | 9 | 36 | - |
| 63 | AMP01 | 1 | 100µ | 1µ | Resistor | 0.1 | 10000 | 570k | 4n | 5n | 4.8m | 9 | 36 | $12.53 (AMP01GSZ) |
| 64 | AD624 | 1 | 25µ | 250n | Pin Strap | 1 | 1000 | 1M | 50n | 4n | 5m | 12 | 36 | $31.60 (AD624ADZ) |
| 65 | AD524S | 1 | 100µ | 50µ | Pin Strap | 1 | 1000 | 1M | 50n | 7n | 5m | 12 | 36 | - |
| 66 | AD524 | 1 | 50µ | 500n | Pin Strap | 1 | 1000 | 1M | 15n | 7n | 5m | 12 | 36 | $12.04 (AD524ARZ-16) |
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