Усилители с малым входным током смещения (< 100 пА)
ОУ с малым входным током смещения требуются в ситуациях, когда разница токов или напряжений мала и должна быть измерена с малой погрешностью. Входные каскады таких ОУ не нагружают источник сигнала. Применение ОУ с малым входным током смещения крайне важно для задач интерфейса с датчиками, такими как фотодиоды, датчиками pH и другими датчиками типа электрометров. Компанией Analog Devices выпускается множество прецизионных ОУ, которые способны удовлетворить требованиям таких приложений. Подберите компоненты при помощи приведенной ниже таблицы параметрического поиска и перейдите по соответствующей ссылке для загрузки технических описаний и заказа образцов.
Precision Low Input Bias Amps
Part# | Amps per Package | -3dB Bandwidth at min gain (typ) | GBP (typ) | Slew Rate (typ) | Vsupply Span (min) | Vsupply Span (max) | Vos (typ) | Iq/Amp (typ) | Ib (typ) | PSRR (typ) | CMRR (typ) | Rail-Rail In | Rail-Rail Out | Ios (typ) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ADA4666-2 | 2 | 2.1 MHz | 4 MHz | 2 V/µs | 3 | 18 | 500 µV | 630 µA | 500 fA | 145 | 80 | Yes | Yes | 11 pA |
ADA4661-2 | 2 | 2.1 MHz | 4 MHz | 2 V/µs | 3 | 18 | 30 µV | 630 µA | 0.5 pA | 145 | 90 | Yes | Yes | 11 pA |
ADA4500-2 | 2 | 10 MHz | 10 MHz | 8.7 V/µs | 2.7 | 5.5 | 120 µV | 1.55 mA | 700 fA | - | 95 | Yes | Yes | - |
ADA4691-4 | 4 | 3.6 MHz | 3.6 MHz | 1.3 V/µs | 2.7 | 5 | 500 µV | 180 µA | 500 fA | 90 | 75 | No | Yes | 1 pA |
ADA4691-2 | 2 | 3.6 MHz | 3.6 MHz | 1.3 V/µs | 2.7 | 5 | 500 µV | 180 µA | 500 fA | 90 | 75 | No | Yes | 1 pA |
ADA4627-1 | 1 | 19 MHz | 19 MHz | 40 V/µs | 10 | 30 | 70 µV | 7 mA | 1 pA | - | 106 | No | No | 0.5 pA |
ADA4505-1 | 1 | 50 kHz | 50 kHz | 6 mV/µs | 1.8 | 5 | 500 µV | 9 µA | 500 fA | 110 | 90 | Yes | Yes | 0.05 pA |
ADA4665-2 | 2 | 1.2 MHz | 1.2 MHz | 1 V/µs | 5 | 16 | 4 mV | 290 µA | 1 pA | 95 | 55 | Yes | Yes | 0.1 pA |
ADA4505-4 | 4 | 50 kHz | 50 kHz | 6 mV/µs | 1.8 | 5 | 500 µV | 7 µA | 500 fA | 110 | 90 | Yes | Yes | 50 fA |
ADA4505-2 | 2 | 50 kHz | 50 kHz | 6 mV/µs | 1.8 | 5 | 500 µV | 7 µA | 500 fA | 110 | 90 | Yes | Yes | 50 fA |
AD8639 | 2 | 1.5 MHz | 1.35 MHz | 2 V/µs | 5 | 16 | 3 µV | 1.5 mA | 1 pA | 143 | 127 | No | Yes | 20 pA |
AD8669 | 4 | 520 kHz | 540 kHz | 0.26 V/µs | 5 | 16 | 40 µV | 285 µA | 300 fA | 105 | 87 | No | Yes | 200 fA |
AD8647 | 2 | 24 MHz | 24 MHz | 11 V/µs | 2.7 | 5.5 | 600 µV | 2 mA | 300 fA | 80 | 67 | Yes | Yes | 0.1 pA |
AD8638 | 1 | 1.5 MHz | 1.35 MHz | 2 V/µs | 5 | 16 | 3 µV | 1.5 mA | 1 pA | - | 127 | No | Yes | 20 pA |
AD8663 | 1 | 540 kHz | 540 kHz | 0.3 V/µs | 5 | 16 | 40 µV | 285 µA | 300 fA | 105 | 87 | No | Yes | 200 fA |
AD8646 | 2 | 24 MHz | 24 MHz | 11 V/µs | 2.7 | 5.5 | 600 µV | 2 mA | 300 fA | 80 | 67 | Yes | Yes | 0.1 pA |
AD8667 | 2 | 520 kHz | 540 kHz | 0.26 V/µs | 5 | 16 | 40 µV | 285 µA | 300 fA | 105 | 87 | No | Yes | 200 fA |
AD8504 | 4 | 7 kHz | 7 kHz | 0.004 V/µs | 1.8 | 5.5 | 500 µV | 1 µA | 1 pA | 105 | 67 | Yes | Yes | 0.5 pA |
AD8502 | 2 | 7 kHz | 7 kHz | 0.004 V/µs | 1.8 | 5.5 | 500 µV | 1 µA | 1 pA | 105 | 67 | Yes | Yes | 0.5 pA |
AD8665 | 1 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 50 µV | 1.55 mA | 300 fA | 115 | 90 | No | Yes | 0.1 pA |
AD8666 | 2 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 600 µV | 1.55 mA | 200 fA | 115 | 90 | No | Yes | 0.1 pA |
AD8664 | 4 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 50 µV | 1.55 mA | 300 fA | 110 | 90 | No | Yes | 0.2 pA |
AD8668 | 4 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 600 µV | 1.55 mA | 200 fA | 115 | 90 | No | Yes | 0.1 pA |
AD8662 | 2 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 30 µV | 1.55 mA | 300 fA | 110 | 90 | No | Yes | 200 fA |
AD8500 | 1 | 7 kHz | 7 kHz | 0.004 V/µs | 1.8 | 5.5 | 235 µV | 0.75 µA | 1 pA | 110 | 75 | Yes | Yes | 0.5 pA |
AD8648 | 4 | 22 MHz | 24 MHz | 12 V/µs | 2.7 | 5.5 | 600 µV | 2 mA | 300 fA | 80 | 67 | Yes | Yes | 0.1 pA |
AD8613 | 1 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 5 | 400 µV | 38 µA | 200 fA | 94 | 95 | Yes | Yes | 0.1 pA |
AD8661 | 1 | 4 MHz | 4 MHz | 3.5 V/µs | 5 | 16 | 30 µV | 1.4 mA | 300 fA | 110 | 90 | No | Yes | 0.2 pA |
AD8619 | 4 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 5 | 400 µV | 38 µA | 200 fA | 94 | 68 | Yes | Yes | 0.1 pA |
AD8617 | 2 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 5 | 400 µV | 38 µA | 200 fA | 94 | 68 | Yes | Yes | 0.1 pA |
AD8694 | 4 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 400 µV | 0.95 mA | 200 fA | 95 | 70 | No | Yes | 0.1 pA |
AD8643 | 4 | 3.5 MHz | 3.5 MHz | 3 V/µs | 5 | 26 | 50 µV | 290 µA | 250 fA | 107 | 90 | No | Yes | 0.5 pA |
AD8642 | 2 | 3.5 MHz | 3.5 MHz | 3 V/µs | 5 | 26 | 50 µV | 290 µA | 250 fA | 107 | 90 | No | Yes | 0.5 pA |
AD8691 | 1 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 400 µV | 1.05 mA | 200 fA | 95 | 70 | No | Yes | 0.1 pA |
AD8615 | 1 | 23 MHz | 24 MHz | 12 V/µs | 2.7 | 6 | 80 µV | 1.7 mA | 200 fA | 90 | 80 | Yes | Yes | 0.1 pA |
AD8692 | 2 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 400 µV | 1.05 mA | 200 fA | 95 | 70 | No | Yes | 0.1 pA |
AD8652 | 2 | 50 MHz | 50 MHz | 41 V/µs | 2.7 | 5.5 | 100 µV | 9 mA | 1 pA | 94 | 84 | Yes | Yes | 1 pA |
AD8641 | 1 | 3.5 MHz | 3.5 MHz | 3 V/µs | 5 | 26 | 50 µV | 290 µA | 250 fA | 107 | 90 | No | Yes | 0.5 pA |
AD8618 | 4 | 24 MHz | 24 MHz | 12 V/µs | 2.7 | 6 | 23 µV | 2 mA | 200 fA | 90 | 80 | Yes | Yes | 0.1 pA |
AD8616 | 2 | 24 MHz | 24 MHz | 12 V/µs | 2.7 | 6 | 80 µV | 2 mA | 200 fA | 90 | 80 | Yes | Yes | 0.1 pA |
AD8651 | 1 | 50 MHz | 50 MHz | 41 V/µs | 2.7 | 5.5 | 100 µV | 9 mA | 1 pA | 94 | 80 | Yes | Yes | 1 pA |
AD8626 | 2 | 5 MHz | 5 MHz | 5 V/µs | 5 | 26 | 50 µV | 850 µA | 250 fA | 104 | 76 | No | Yes | 0.5 pA |
AD8625 | 4 | 5 MHz | 5 MHz | 5 V/µs | 5 | 26 | 50 µV | 850 µA | 250 fA | 104 | 76 | No | Yes | 0.5 pA |
AD8609 | 4 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 5 | 12 µV | 50 µA | 200 fA | 100 | 85 | Yes | Yes | 0.1 pA |
AD8607 | 2 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 5 | 12 µV | 50 µA | 200 fA | 100 | 85 | Yes | Yes | 0.1 pA |
AD8603 | 1 | 400 kHz | 400 kHz | 0.1 V/µs | 1.8 | 6 | 12 µV | 50 µA | 200 fA | 100 | 85 | Yes | Yes | 0.1 pA |
AD8627 | 1 | 5 MHz | 5 MHz | 5 V/µs | 5 | 26 | 50 µV | 850 µA | 250 fA | 104 | 76 | No | Yes | 0.5 pA |
AD8608 | 4 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 20 µV | 1.2 mA | 200 fA | 95 | 85 | Yes | Yes | 100 fA |
AD8605 | 1 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 20 µV | 1.2 mA | 200 fA | 95 | 85 | Yes | Yes | 100 fA |
AD8606 | 2 | 10 MHz | 10 MHz | 5 V/µs | 2.7 | 6 | 20 µV | 1.2 mA | 200 fA | 95 | 85 | Yes | Yes | 100 fA |
AD8604 | 4 | 8.4 MHz | 8.4 MHz | 6 V/µs | 2.7 | 6 | 500 µV | 1.2 mA | 200 fA | 75 | 74 | Yes | Yes | 100 fA |
AD8601 | 1 | 8.4 MHz | 8.4 MHz | 6 V/µs | 2.7 | 6 | 500 µV | 1.2 mA | 200 fA | 75 | 74 | Yes | Yes | 100 fA |
AD8602 | 2 | 8.4 MHz | 8.4 MHz | 6 V/µs | 2.7 | 6 | 500 µV | 1.2 mA | 200 fA | 75 | 74 | Yes | Yes | 100 fA |
AD795 | 1 | 1.6 MHz | 1.6 MHz | 1 V/µs | 8 | 36 | 100 µV | 1.5 mA | 1 pA | 110 | 90 | No | No | 100 fA |
AD549 | 1 | 1 MHz | 1 MHz | 3 V/µs | 10 | 36 | 500 µV | 700 µA | 40 fA | 90 | 90 | No | No | 50 fA |