Overview
The AD7888ARUZ is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This component operates from a single 2.7 V to 5.25 V power supply and is designed for applications requiring high throughput rates and low power consumption. The AD7888 features eight single-ended analog inputs, a successive-approximation ADC, an on-chip 2.5 V reference, and a versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Throughput Rate | 125 kSPS |
| Power Supply | 2.7 V to 5.25 V |
| Analog Input Channels | 8 single-ended inputs (AIN1 to AIN8) |
| Analog Input Range | 0 to VREF (1.2 V to VDD) |
| On-Chip Reference | 2.5 V |
| Input Track-and-Hold Acquisition Time | 500 ns |
| Package Types | 16-lead Narrow SOIC and TSSOP |
| Operating Temperature Range | -40°C to +105°C |
| Power Consumption | Typically 2 mW in normal operation, 3 μW in power-down mode |
Key Features
- High-speed operation with a throughput rate of 125 kSPS
- Low power consumption, suitable for battery-powered systems
- Eight single-ended analog inputs with a single-ended sampling scheme
- On-chip 2.5 V reference that can be used internally or externally
- Flexible power management options, including automatic power-down after conversion
- Versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols
- Compact 16-lead TSSOP and SOIC packages
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 AD7888ARUZ ADC?
The AD7888ARUZ has a resolution of 12 bits. - What is the throughput rate of the AD7888ARUZ?
The throughput rate is 125 kSPS. - What is the power supply range for the AD7888ARUZ?
The power supply range is from 2.7 V to 5.25 V. - How many analog input channels does the AD7888ARUZ have?
The AD7888ARUZ has eight single-ended analog input channels (AIN1 to AIN8). - What is the range of the analog input for the AD7888ARUZ?
The analog input range is from 0 to VREF, where VREF can be between 1.2 V and VDD. - Does the AD7888ARUZ have an on-chip reference?
Yes, the AD7888ARUZ features an on-chip 2.5 V reference. - What is the input track-and-hold acquisition time for the AD7888ARUZ?
The input track-and-hold acquisition time is 500 ns. - In what packages is the AD7888ARUZ available?
The AD7888ARUZ is available in 16-lead Narrow SOIC and TSSOP packages. - What is the operating temperature range for the AD7888ARUZ?
The operating temperature range is from -40°C to +105°C. - How much power does the AD7888ARUZ consume in normal operation and power-down mode?
In normal operation, the power consumption is typically 2 mW, and in power-down mode, it is 3 μW.
