Overview
The AD7887ARM, produced by Analog Devices Inc., is a high-performance, low-power, 12-bit analog-to-digital converter (ADC). This component is designed to operate from a single power supply ranging from 2.7 V to 5.25 V, making it versatile for various applications. The AD7887ARM features a high throughput rate of 125 kSPS and is available in compact 8-lead packages, including narrow SOIC and MSOP, which are ideal for space-constrained designs. The ADC supports both single-channel and dual-channel operations, with flexible power management options and a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Throughput Rate | 125 kSPS |
| Power Supply | 2.7 V to 5.25 V |
| Operating Temperature Range | -40°C to +85°C |
| Analog Input Range (Single-Channel) | 0 V to VREF (1.2 V to VDD) |
| Analog Input Range (Dual-Channel) | 0 V to VDD |
| Input Acquisition Time | 500 ns |
| Power Consumption (Normal Operation) | Typically 2 mW |
| Power Consumption (Power-Down Mode) | 3 μW |
| Package Types | 8-lead narrow SOIC, 8-lead MSOP |
Key Features
- High-speed, low-power 12-bit ADC with a throughput rate of 125 kSPS.
- Single-ended analog input channels with flexible input range configurations.
- Support for both single-channel and dual-channel operations.
- Serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
- Low power consumption with automatic power-down after conversion.
- Compact 8-lead packages (narrow SOIC and MSOP) suitable for space-constrained applications.
- Internal 2.5 V reference or external reference voltage option.
- RoHS compliant and eco-friendly design.
Applications
- Battery-powered systems such as personal digital assistants, medical instruments, and mobile communications.
- Instrumentation and control systems.
- High-speed modems.
- Data acquisition systems.
- Automotive applications.
Q & A
- What is the resolution of the AD7887ARM ADC?
The AD7887ARM has a 12-bit resolution. - What is the throughput rate of the AD7887ARM?
The throughput rate is 125 kSPS. - What is the power supply range for the AD7887ARM?
The power supply range is from 2.7 V to 5.25 V. - What are the operating temperature ranges for the AD7887ARM?
The operating temperature range is from -40°C to +85°C. - Can the AD7887ARM be configured for single-channel or dual-channel operation?
Yes, the AD7887ARM can be configured for both single-channel and dual-channel operations. - What is the input acquisition time for the AD7887ARM?
The input acquisition time is 500 ns. - What are the typical power consumption values for the AD7887ARM?
The typical power consumption is 2 mW for normal operation and 3 μW in power-down mode. - What types of packages are available for the AD7887ARM?
The AD7887ARM is available in 8-lead narrow SOIC and 8-lead MSOP packages. - Is the AD7887ARM RoHS compliant?
Yes, the AD7887ARM is RoHS compliant. - What are some common applications of the AD7887ARM?
Common applications include battery-powered systems, instrumentation and control systems, high-speed modems, data acquisition systems, and automotive applications.
