Overview
The AD7866ARU is a dual, simultaneous sampling, 12-bit analog-to-digital converter (ADC) produced by Analog Devices, Inc. This device operates from a single 2.7 V to 5.25 V power supply and features a high sampling rate of up to 1 MSPS. It includes a 4-channel analog input multiplexer, track-and-hold amplifiers, and two successive approximation ADCs. The AD7866 is known for its excellent DC and AC performance, with a signal-to-noise ratio (SNR) of 79 dB and a spurious-free dynamic range (SFDR) of 92 dB.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer Part Number | AD7866ARU |
| Number of Bits | 12 |
| Sampling Rate | Up to 1 MSPS |
| Number of Analog Input Channels | 4 |
| Power Supply Range | 2.7 V to 5.25 V |
| Operating Temperature Range | -40°C to +125°C |
| Package Type | 20-lead Thin Shrink Small Outline (TSSOP) |
| Signal-to-Noise Ratio (SNR) | 79 dB |
| Spurious-Free Dynamic Range (SFDR) | 92 dB |
| Output Format | Serial, Binary or 2's Complement |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP compatible |
Key Features
- Dual, simultaneous sampling 12-bit ADCs
- High sampling rate of up to 1 MSPS
- 4-channel analog input multiplexer
- Track-and-hold amplifiers with low noise and wide bandwidth
- Low power consumption with flexible power/throughput rate management
- No pipeline delays, allowing simultaneous conversion and read operations
- On-chip 2.5 V reference, with option for external reference
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSPs
- Shutdown mode with maximum current consumption of 1 µA
Applications
- Industrial automation and control
- Test and measurement equipment
- Medical instrumentation
- Power management systems
- Portable and battery-powered devices
Q & A
- What is the sampling rate of the AD7866ARU?
The AD7866ARU has a sampling rate of up to 1 MSPS.
- How many analog input channels does the AD7866ARU have?
The AD7866ARU has 4 analog input channels.
- What is the power supply range for the AD7866ARU?
The AD7866ARU operates from a single 2.7 V to 5.25 V power supply.
- What is the operating temperature range of the AD7866ARU?
The operating temperature range is -40°C to +125°C.
- What type of package does the AD7866ARU come in?
The AD7866ARU is available in a 20-lead Thin Shrink Small Outline (TSSOP) package.
- What is the signal-to-noise ratio (SNR) of the AD7866ARU?
The SNR of the AD7866ARU is 79 dB.
- Is the AD7866ARU still in active production?
No, the AD7866ARU is an obsolete product and is no longer in active production. However, there are alternative models available.
- What interfaces is the AD7866ARU compatible with?
The AD7866ARU is compatible with SPI, QSPI, MICROWIRE, and DSP interfaces.
- Does the AD7866ARU have any pipeline delays?
No, the AD7866ARU does not have any pipeline delays, allowing for simultaneous conversion and read operations.
- What is the maximum current consumption in shutdown mode?
The maximum current consumption in shutdown mode is 1 µA.
