Overview
The AD7888BRZ, manufactured by Analog Devices Inc., is a high-speed, low-power, 12-bit analog-to-digital converter (ADC) designed for a wide range of applications. It operates from a single 2.7 V to 5.25 V power supply and features an 8-channel multiplexer, on-chip track-and-hold, A/D converter, reference, and serial interface. This ADC is particularly suited for battery-powered systems, instrumentation, and control systems due to its low power consumption and high throughput rate of 125 kSPS.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Analog Input Channels | 8 single-ended |
| Sampling Rate | 125 kSPS |
| Supply Voltage | 2.7 V to 5.25 V |
| Package Type | 16-Lead Narrow SOIC and TSSOP |
| Operating Temperature Range | -40°C to +105°C |
| Nominal Supply Current | 700 μA |
| Reference Voltage | On-chip 2.5 V reference (externally adjustable between 1.2 V and VDD) |
| Interface Compatibility | SPI™/QSPI™/MICROWIRE™/DSP |
Key Features
- High-speed conversion with a throughput rate of 125 kSPS
- Low power consumption, making it suitable for battery-powered systems
- On-chip 2.5 V reference with external reference input option
- 8-channel multiplexer controlled by the Control Register
- Automatic power-down feature to reduce power consumption
- Serial interface compatible with SPI™/QSPI™/MICROWIRE™/DSP
- Single-ended analog input range from 0 to VREF
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 AD7888BRZ ADC?
The AD7888BRZ has a resolution of 12 bits. - How many analog input channels does the AD7888BRZ have?
The AD7888BRZ has 8 single-ended analog input channels. - What is the sampling rate of the AD7888BRZ?
The AD7888BRZ has a sampling rate of 125 kSPS. - What is the operating supply voltage range for the AD7888BRZ?
The AD7888BRZ operates from a single 2.7 V to 5.25 V power supply. - What types of packages are available for the AD7888BRZ?
The AD7888BRZ is available in 16-Lead Narrow SOIC and TSSOP packages. - What is the operating temperature range for the AD7888BRZ?
The AD7888BRZ operates over a temperature range of -40°C to +105°C. - What is the nominal supply current of the AD7888BRZ?
The nominal supply current of the AD7888BRZ is 700 μA. - Does the AD7888BRZ have an on-chip reference voltage?
Yes, the AD7888BRZ has an on-chip 2.5 V reference voltage that can also be externally adjusted. - What interfaces is the AD7888BRZ compatible with?
The AD7888BRZ is compatible with SPI™/QSPI™/MICROWIRE™/DSP interfaces. - What is the purpose of the Control Register in the AD7888BRZ?
The Control Register in the AD7888BRZ controls the 8-channel multiplexer and allows for power-off of the internal reference and determination of the modes of operation.
