Features and Benefits
- Ultralow supply current
- Full power mode: 500 μA
- Sleep mode: 74 μA
- Shutdown mode: 2.9 μA
- Dynamic power scaling
- Turn-on time from shutdown mode: 1.5 μs
- Turn-on time from sleep mode: 0.45 μs
- High speed performance with dc precision
- Input offset voltage: 125 μV maximum
- Input offset voltage drift: 1.5 μV/°C maximum
- −3 dB bandwidth: 105 MHz
- Slew rate: 160 V/ μs
- Low noise and distortion
- 5.9 nV/√Hz input voltage noise with 8 Hz 1/f corner
- −102 dBc/−126 dBc HD2/HD3 at 100 kHz
- Wide supply range: 2.7 V to 10 V
- Small package: 8-lead SOT-23
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.
- Portable and battery-powered instruments and systems
- High channel density data acquisition systems
- Precision analog-to-digital converter (ADC) drivers
- Voltage reference buffers
- Portable point of sales terminals
- Active RFID readers
Markets and Technologies
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
The Analog Devices, Inc., ADA4806-1RJ-EBZ evaluation board is designed to help users evaluate the ADA4806-1 low power, multimode, rail-to-rail amplifier, offered in an 8-lead SOT-23 package. The ADA4806-1RJ-EBZ is a bare board (that is, there are no components soldered to the board) that enables users to quickly prototype a variety of op amp circuits.
The ADA4806-1RJ-EBZ is a 2-layer printed circuit board (PCB) that accepts SMA edge mounted connectors on the inputs and outputs for efficient connection to test equipment or other circuitry. The ADA4806-1RJ-EBZ evaluation board components are primarily surface-mount technology (SMT) 0603 case size, with the exception of the electrolytic bypass capacitors (C1 and C2) which are 3528 case size.
Tools & Simulations
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
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