Overview
The AD7887ARZ, produced by Analog Devices Inc., is a highly versatile and efficient 12-bit analog-to-digital converter (ADC) designed for a wide range of applications. This micropower ADC can be configured for either single-channel or dual-channel operation, making it suitable for various data acquisition needs. It features a successive approximation register (SAR) architecture and is available in 8-lead SOIC and MSOP packages. The device operates on a single supply voltage ranging from 2.7 V to 5.25 V and is known for its low power consumption, typically 2 mW in normal operation and 3 μW in power-down mode.
Key Specifications
| Parameter | Description |
|---|---|
| Number of Bits | 12-bit |
| Sampling Rate | 125 kSPS |
| Number of Inputs | 1 or 2 (single-channel or dual-channel) |
| Input Type | Single-ended |
| Data Interface | SPI, DSP compatible |
| Reference Type | Internal or external (2.5 V to VDD) |
| Supply Voltage | 2.7 V to 5.25 V |
| Package | 8-lead SOIC, 8-lead MSOP |
| Operating Temperature Range | -40°C to +125°C |
| Power Consumption | Typically 2 mW in normal operation, 3 μW in power-down mode |
Key Features
- Configurable for single-channel or dual-channel operation via on-chip control register.
- Low power consumption with typical values of 2 mW in normal operation and 3 μW in power-down mode.
- Flexible power management options, including automatic power-down after conversion.
- Read-only ADC capability in single-channel mode.
- Analog input range from 0 V to VREF (or VDD in dual-channel mode).
- Versatile serial input/output port compatible with SPI, DSP, QSPI, and MICROWIRE.
- Internal 2.5 V reference or external reference voltage option.
- CMOS construction ensuring low power dissipation.
Applications
The AD7887ARZ is suitable for a variety of applications requiring precise and efficient analog-to-digital conversion. These include:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Portable and battery-powered devices.
- Data acquisition systems.
Q & A
- What is the resolution of the AD7887ARZ ADC?
The AD7887ARZ is a 12-bit analog-to-digital converter.
- What are the possible operating modes of the AD7887ARZ?
The AD7887ARZ can be configured for either single-channel or dual-channel operation.
- What is the sampling rate of the AD7887ARZ?
The AD7887ARZ has a sampling rate of 125 kSPS.
- What are the supply voltage ranges for the AD7887ARZ?
The AD7887ARZ operates on a single supply voltage ranging from 2.7 V to 5.25 V.
- What types of packages are available for the AD7887ARZ?
The AD7887ARZ is available in 8-lead SOIC and 8-lead MSOP packages.
- How does the AD7887ARZ manage power consumption?
The AD7887ARZ features low power consumption, typically 2 mW in normal operation and 3 μW in power-down mode, with flexible power management options including automatic power-down after conversion.
- What is the operating temperature range of the AD7887ARZ?
The AD7887ARZ operates over a temperature range of -40°C to +125°C.
- Can the AD7887ARZ use an external reference voltage?
- What data interfaces are supported by the AD7887ARZ?
The AD7887ARZ supports SPI, DSP, QSPI, and MICROWIRE data interfaces.
- Is the AD7887ARZ RoHS compliant?
