Overview
The AD7866BRUZ-REEL7, produced by Analog Devices Inc., is a dual 12-bit high-speed, low power, successive-approximation analog-to-digital converter (ADC). This device is designed to operate from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 million samples per second (MSPS). The AD7866 contains two ADCs, each preceded by a low-noise, wide bandwidth track/hold amplifier, capable of handling input frequencies in excess of 10 MHz. The conversion process and data acquisition are controlled using standard control inputs, allowing easy interfacing to microprocessors or digital signal processors (DSPs).
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Number of Channels | 2 |
| Sampling Rate | Up to 1 MSPS |
| Power Supply | 2.7 V to 5.25 V |
| Current Consumption (3 V, 1 MSPS) | Maximum of 3.8 mA |
| Current Consumption (5 V, 1 MSPS) | Maximum of 4.8 mA |
| Analog Input Range | 0 V to VREF or 2 × VREF |
| Output Coding | Straight binary or two's complement |
| Reference Voltage | On-chip 2.5 V reference, can be overdriven by an external reference |
| Package Type | 20-Lead TSSOP |
| Operating Temperature Range | -40°C to 85°C |
Key Features
- Dual 12-bit successive-approximation ADCs with high-speed operation up to 1 MSPS.
- Low power consumption with maximum current of 3.8 mA at 3 V and 4.8 mA at 5 V supply.
- Low-noise, wide bandwidth track/hold amplifiers capable of handling input frequencies over 10 MHz.
- Flexible power/throughput rate management with sleep mode operation.
- Standard control inputs for easy interfacing to microprocessors or DSPs.
- No pipelined delays, ensuring direct conversion initiation and data acquisition.
- On-chip 2.5 V reference voltage that can be overdriven by an external reference.
- Support for straight binary or two's complement output coding.
Applications
- High-speed data acquisition systems.
- Medical imaging and diagnostic equipment.
- Aerospace and defense applications requiring high precision and low power consumption.
- Industrial automation and control systems.
- Test and measurement instruments.
- Embedded systems requiring high-speed analog-to-digital conversion.
Q & A
- What is the resolution of the AD7866 ADC?
The AD7866 has a resolution of 12 bits.
- How many channels does the AD7866 support?
The AD7866 supports two channels.
- What is the maximum sampling rate of the AD7866?
The maximum sampling rate is up to 1 MSPS.
- What is the power supply range for the AD7866?
The AD7866 operates from a single 2.7 V to 5.25 V power supply.
- How much current does the AD7866 consume at 3 V and 1 MSPS?
The current consumption is a maximum of 3.8 mA at 3 V and 1 MSPS.
- Can the AD7866 be used with external reference voltages?
- What type of output coding does the AD7866 support?
The AD7866 supports straight binary and two's complement output coding.
- What is the package type of the AD7866?
The AD7866 is available in a 20-Lead TSSOP package.
- What is the operating temperature range of the AD7866?
The operating temperature range is -40°C to 85°C.
- Is there an evaluation board available for the AD7866?
