AD8641: Low Power, Rail - to - Rail Output Precision JFET Amplifier in 5-lead SC70 and 8-lead SOIC lead-free packages
The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and ...More
AD8641: Low Power, Rail - to - Rail Output Precision JFET Amplifier in 5-lead SC70 and 8-lead SOIC lead-free packages
Product Description
The AD8641/AD8642/AD8643 are low power, precision JFET input amplifiers featuring extremely low input bias current and rail-to-rail output. The ability to swing nearly rail-to-rail at the input and rail-to-rail at the output enables designers to buffer CMOS DACs, ASICs, and other wide output swing devices in single-supply systems. The outputs remain stable with capacitive loads of more than 500 pF.
The AD8641/AD8642/AD8643 are suitable for applications utilizing multichannel boards that require low power to manage heat. Other applications include photodiodes, ATE reference level drivers, battery management, and industrial controls.
The AD8641/AD8642/AD8643 are fully specified over the extended industrial temperature range of –40°C to +125°C. The AD8641 is available in 5-lead SC70 and 8-lead SOIC lead-free packages. The AD8642 is available in 8-lead MSOP and 8-lead SOIC lead-free packages. The AD8643 is available in 14-lead SOIC and 16-lead, 3 mm × 3 mm, LFCSP lead-free packages.
Applications
Features
- Low Supply Current: 250 µA max
- Very Low Input Bias Current: 1 pA max
- Low Offset Voltage: 750 µV max
- Single-supply Operation: 5 V to 26 V
- Dual-supply Operation: ±2.5 V to ±13 V
- Rail-to-rail Output
- Unity Gain Stable
- No Phase Reversal
- SC70 Package
Diagrams
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- Symbols and Footprints
Pin Configuration Diagram for AD8641
Low Power, Rail - to - Rail Output Precision JFET Amplifier in 5-lead SC70 and 8-lead SOIC lead-free packages
Pin Configuration Diagram for AD8641
| Part# | V Span Max | Iq per Amplifier (max) | -3dB Bandwidth | Aol | I out Capability | Capacitive Load | Slew Rate | Vos | Ib | Price* (1000-4999) | Product Description |
|---|---|---|---|---|---|---|---|---|---|---|---|
| AD8560 | 16V | 1mA | 8MHz | n/a | 35mA | n/a | 8V/µs | 2mV | 80nA | $1.02 | 16 V, 5-Channel, Rail - to - Rail Buffer Amplifier for LCD Monitor Applications |
| ADD8504 | 6.5V | 0.95mA | n/a | n/a | 20mA | 1nF | 7V/µs | 20mV | 2nA | $0.80 | 4 - Channel LCD Gamma Reference Buffer in 16 - Lead TSSOP |
| ADD8505 | 6.5V | 0.88mA | n/a | n/a | 20mA | 1nF | 7V/µs | 20mV | 2nA | $0.87 | 5 - Channel LCD Gamma Reference Buffer in 20 - Lead TSSOP |
| ADD8506 | 6.5V | 0.85mA | n/a | n/a | 20mA | 1nF | 7V/µs | 20mV | 2nA | $0.96 | 6 - Channel Muxed Input, LCD Gamma Reference Buffer in 24 - Lead TSSOP |
| ADD8754 | 18V | n/a | 1.95MHz | n/a | 300mA | n/a | 105V/µs | 19mV | 50nA | - | VCOM Amplifier with LCD Panel Power & Gate Pulse Modulation Ciruitry |
| AD8531 | 6V | 1.25mA | 3MHz | 98dB | 250mA | 1nF | 5V/µs | 25mV | 5pA | $0.27 | 250 mA Output Current, Rail-Rail In/Out, Single-Supply Operational Amplifier |
| AD8509 | - | 944µA | n/a | n/a | 20mA | 1000pF | 7V/µs | 20mV | 50nA | $3.77 | 9-Channel, Multiplexed Input, LCD Driver |
| AD8532 | 6V | 1.25mA | 3MHz | 70dB | 250mA | 10nF | 5V/µs | 25mV | 5pA | $0.43 | Dual, 250 mA Output Current, Rail-Rail In/Out, Single-Supply Operational Amplifier |
| AD8511 | - | 773µA | n/a | n/a | 20mA | 1000pF | 7V/µs | 20mV | 50nA | $3.99 | 11-Channel, Multiplexed Input, LCD Driver |
| AD8534 | 6V | 1.25mA | 3MHz | 70dB | 250mA | 10nF | 5V/µs | 25mV | 5pA | $0.60 | Quad, 250 mA Output Current, Rail-Rail In/Out, Single-Supply Operational Amplifier |
| AD8519 | 12V | 1.2mA | 8MHz | 100dB | 25mA | 600pF | 2.9V/µs | 600µV | 300nA | $0.92 | 8 MHz, Rail-Rail Out, Operational Amplifier |
| AD8529 | 12V | 1.2mA | 8MHz | 100dB | 25mA | 600pF | 2.9V/µs | 600µV | 300nA | $1.22 | Dual, 8 MHz, Rail-Rail Out, Operational Amplifier |
| ADD8708 | 16.5V | 0.9mA | 4.5MHz | n/a | 150mA | 200pF | 6V/µs | 5mV | 500nA | - | 18 - Channel Gamma Buffer with Regulator |
| ADD8701 | 16V | 1mA |