ADA4806-1ARJZ-R7
数据手册.pdfANALOG DEVICES ADA4806-1ARJZ-R7 运算放大器, 105 MHz, 1个放大器, 160 V/µs, 2.7V 至 10V, SOT-23, 8 引脚
Product Details
The ADA4806-1 is a high speed, voltage feedback, rail-to-rail output, single operational amplifier with three power modes: full power mode, sleep mode, and shutdown mode. In full power mode, this amplifier provides a wide bandwidth of 105 MHz at a gain of +1, a fast slew rate 160 V/μs, and excellent dc precision with a low input offset voltage of 125 μV maximum and an input offset voltage drift of 1.5 μV/°C maximum, while consuming only 500 μA of quiescent current. Despite being a low power amplifier, the ADA4806-1 provides excellent overall performance, making it ideal for low power, high resolution data conversion systems.
For data conversion applications where minimizing power dissipation is paramount, the ADA4806-1 offers a method to reduce power by dynamically scaling the quiescent power of the ADC driver with the sampling rate of the system by switching the amplifier to a lower power mode between samples.
Sleep mode reduces the amplifier quiescent current to 74 μA and provides a fast turn-on time of only 0.45 μs, enabling the use of dynamic power scaling for sample rates approaching 2 MSPS. For additional power savings at lower samples rates, the shutdown mode further reduces the quiescent current to only 2.9 μA.
The ADA4806-1 operates over a wide range of supply voltages and is fully specified at supplies of 3 V, 5 V and ±5 V. This amplifier is available in a compact, 8-lead SOT-23 package and is rated to operate over the industrial temperature range of −40°C to +125°C.
**Applications**
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- Portable and battery-powered instruments and systems
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- High channel density data acquisition systems
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- Precision analog-to-digital converter ADC drivers
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- Voltage reference buffers
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- Portable point of sales terminals
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- Active RFID readers
### Features and Benefits
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- Ultralow supply current
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- Full power mode: 500 μA
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- Sleep mode: 74 μA
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- Shutdown mode: 2.9 μA
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- Dynamic power scaling
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- Turn-on time from shutdown mode: 1.5 μs
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- Turn-on time from sleep mode: 0.45 μs
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- High speed performance with dc precision
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- Input offset voltage: 125 μV maximum
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- Input offset voltage drift: 1.5 μV/°C maximum
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- −3 dB bandwidth: 105 MHz
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- Slew rate: 160 V/ μs
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- Low noise and distortion
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- 5.9 nV/√Hz input voltage noise with 8 Hz 1/f corner
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- −102 dBc/−126 dBc HD2/HD3 at 100 kHz
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- Wide supply range: 2.7 V to 10 V
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- Small package: 8-lead SOT-23