Overview
The AD7888ARU is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device operates from a single power supply ranging from 2.7 V to 5.25 V and is designed for applications requiring high throughput rates and low power consumption. The AD7888ARU features an 8-channel multiplexer, on-chip track-and-hold, a successive-approximation ADC, and a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols. It is housed in a compact 16-lead TSSOP package, offering significant space-saving advantages.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Throughput Rate | 125 kSPS |
| Power Supply Range | 2.7 V to 5.25 V |
| Analog Input Channels | 8 single-ended inputs (AIN1 to AIN8) |
| Analog Input Range | 0 to VREF (externally applied VREF between 1.2 V and VDD) |
| On-Chip Reference | 2.5 V reference (can be enabled or disabled via Control Register) |
| Package Type | 16-lead TSSOP |
| Operating Temperature Range | -40°C to +105°C |
Key Features
- High-speed operation with a throughput rate of 125 kSPS
- Low power consumption, making it suitable for battery-powered systems
- On-chip 2.5 V reference that can be used internally or externally (with buffering)
- 8-channel multiplexer controlled by the Control Register
- Serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols
- Compact 16-lead TSSOP package for space-saving designs
- Single-ended sampling scheme with input track-and-hold acquiring a signal in 500 ns
Applications
- Battery-powered systems (e.g., personal digital assistants, medical instruments, mobile communications)
- Instrumentation and control systems
- High-speed modems
Q & A
- What is the resolution of the AD7888ARU ADC?
The AD7888ARU has a resolution of 12 bits.
- What is the maximum throughput rate of the AD7888ARU?
The maximum throughput rate is 125 kSPS.
- What is the power supply range for the AD7888ARU?
The power supply range is from 2.7 V to 5.25 V.
- How many analog input channels does the AD7888ARU have?
The AD7888ARU has 8 single-ended analog input channels (AIN1 to AIN8).
- What is the range of the analog input for the AD7888ARU?
The analog input range is from 0 to VREF, where VREF can be between 1.2 V and VDD.
- Does the AD7888ARU have an on-chip reference?
Yes, the AD7888ARU has an on-chip 2.5 V reference.
- What type of package does the AD7888ARU come in?
The AD7888ARU comes in a 16-lead TSSOP package.
- What is the operating temperature range for the AD7888ARU?
The operating temperature range is from -40°C to +105°C.
- Is the AD7888ARU compatible with various serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP protocols.
- What are some typical applications for the AD7888ARU?
Typical applications include battery-powered systems, instrumentation and control systems, and high-speed modems.
