Overview
The AD7887BRZ-REEL7, produced by Analog Devices Inc., is a micropower, 2-channel, 12-bit analog-to-digital converter (ADC) designed for low-power applications. This ADC can be configured for either single-channel or dual-channel operation via an on-chip control register. It features a successive approximation register (SAR) architecture and operates from a single supply voltage ranging from 2.7 V to 5.25 V. The device is housed in an 8-lead SOIC package, ensuring compact integration into various systems.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 2 (configurable to single-channel) |
| Resolution | 12-bit |
| Sampling Rate | 125 kSPS |
| Supply Voltage | 2.7 V to 5.25 V |
| Package Type | 8-Lead SOIC |
| Operating Temperature Range | -40°C to +125°C |
| Power Consumption | Typically 2 mW (normal operation), 3 μW (power-down mode) |
| Analog Input Range (Single-Channel) | 0 to VREF (externally applied VREF: 1.2 V to VDD) |
| Analog Input Range (Dual-Channel) | 0 to VDD |
Key Features
- Configurable for single-channel or dual-channel operation via on-chip control register.
- Internal 2.5 V reference voltage, or external reference voltage range of 2.5 V to VDD.
- Low power consumption: typically 2 mW in normal operation and 3 μW in power-down mode.
- CMOS construction for low power dissipation.
- Serial interface with a clock source for successive approximation ADC.
- ESD protection for analog inputs.
Applications
The AD7887BRZ-REEL7 is suitable for a variety of low-power applications, including:
- Battery-powered devices.
- Portable medical devices.
- Industrial control systems.
- Automotive systems.
- Consumer electronics requiring low power consumption.
Q & A
- What is the resolution of the AD7887BRZ-REEL7 ADC?
The AD7887BRZ-REEL7 has a 12-bit resolution.
- What are the configurable operation modes of the AD7887BRZ-REEL7?
The AD7887BRZ-REEL7 can be configured for either single-channel or dual-channel operation.
- What is the supply voltage range for the AD7887BRZ-REEL7?
The supply voltage range is from 2.7 V to 5.25 V.
- What is the typical power consumption of the AD7887BRZ-REEL7 in normal operation?
The typical power consumption is 2 mW in normal operation and 3 μW in power-down mode.
- What is the maximum sampling rate of the AD7887BRZ-REEL7?
The maximum sampling rate is 125 kSPS.
- What type of package does the AD7887BRZ-REEL7 come in?
The device is housed in an 8-lead SOIC package.
- What is the operating temperature range of the AD7887BRZ-REEL7?
The operating temperature range is from -40°C to +125°C.
- Can the AD7887BRZ-REEL7 use an external reference voltage?
- What kind of protection does the AD7887BRZ-REEL7 have for its analog inputs?
The device has ESD protection for its analog inputs.
- What is the typical analog input capacitance of the AD7887BRZ-REEL7 in track mode?
The typical analog input capacitance in track mode is 38 pF.
