Overview
The AD7887BR-REEL, produced by Analog Devices Inc., is a high-speed, low-power 12-bit analog-to-digital converter (ADC) designed for a wide range of applications. It operates from a single 2.7 V to 5.25 V power supply and is capable of achieving a throughput rate of 125 kSPS. The ADC features a single-ended sampling scheme with an input track-and-hold that acquires a signal in 500 ns. It can be configured for either dual- or single-channel operation via an on-chip control register, making it versatile for various uses.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | 125 kSPS |
| Power Supply | 2.7 V to 5.25 V |
| Input Track-and-Hold Time | 500 ns |
| Analog Input Range (Single-Channel) | 0 to VREF |
| Analog Input Range (Dual-Channel) | 0 to VDD |
| Output Coding | Straight Binary |
| Power Consumption (Normal Operation) | Typically 2 mW |
| Power Consumption (Power-Down Mode) | 3 μW |
| Package Types | 8-lead narrow SOIC and MSOP |
| Operating Temperature Range | −40°C to +125°C |
Key Features
- Smallest 12-bit dual-/single-channel ADC in an 8-lead MSOP package
- Lowest power consumption for a 12-bit dual-/single-channel ADC
- Flexible power management options, including automatic power-down after conversion
- Read-only ADC capability
- Versatile serial input/output port (SPI/QSPI/MICROWIRE/DSP compatible)
- Internal 2.5 V reference or external reference option
Applications
- Battery-powered systems (personal digital assistants, medical instruments, mobile communications)
- Instrumentation and control systems
- High-speed modems
Q & A
- What is the resolution of the AD7887BR-REEL ADC?
The AD7887BR-REEL has a resolution of 12 bits. - What is the throughput rate of the AD7887BR-REEL?
The throughput rate is 125 kSPS. - What is the power supply range for the AD7887BR-REEL?
The power supply range is from 2.7 V to 5.25 V. - How long does the input track-and-hold take to acquire a signal?
The input track-and-hold acquires a signal in 500 ns. - Can the AD7887BR-REEL be configured for dual-channel operation?
Yes, it can be configured for either dual- or single-channel operation via the on-chip control register. - What is the analog input range in single-channel mode?
In single-channel mode, the analog input range is from 0 to VREF. - What is the power consumption in normal operation and power-down mode?
In normal operation, it is typically 2 mW, and in power-down mode, it is 3 μW. - What are the package types available for the AD7887BR-REEL?
The AD7887BR-REEL is available in 8-lead narrow SOIC and MSOP packages. - What is the operating temperature range of the AD7887BR-REEL?
The operating temperature range is from −40°C to +125°C. - Is the AD7887BR-REEL compatible with various serial communication protocols?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
