Overview
The AD7911AUJZ-R2 is a high-speed, low-power, 10-bit successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the AD7911/AD7921 series, which also includes a 12-bit version. The AD7911 operates from a single power supply ranging from 2.35 V to 5.25 V and features a throughput rate of up to 250 kSPS. It is designed for applications requiring high speed and low power consumption, making it suitable for a variety of electronic systems.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 10-bit | |
| Throughput Rate | Up to 250 kSPS | |
| Power Supply Range | 2.35 V to 5.25 V | V |
| Power Consumption (typical at 250 kSPS) | 4 mW at 3 V, 13.5 mW at 5 V | mW |
| Input Bandwidth | Exceeds 6 MHz | MHz |
| Signal-to-Noise Ratio (SNR) at 100 kHz input frequency | 71 dB minimum | dB |
| Package Type | 8-Lead TSOT | |
| Operating Temperature Range | -40°C to +85°C | °C |
Key Features
- Fast throughput rate of up to 250 kSPS
- Low power consumption: 4 mW typical at 250 kSPS with 3 V supplies and 13.5 mW typical at 250 kSPS with 5 V supplies
- Wide input bandwidth exceeding 6 MHz
- No pipeline delays
- High-speed serial interface compatible with SPI, QSPI, MICROWIRE, and DSP
- Standby mode with a maximum current of 1 μA
- Internal reference taken from VDD, allowing the widest dynamic input range
- Channel selection and mode of operation controlled by CS and DIN pins
- Serial data stream includes a channel identifier bit
Applications
- Battery-powered systems
- Personal digital assistants
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition systems
- High-speed modems
- Optical sensors
Q & A
- What is the resolution of the AD7911AUJZ-R2?
The AD7911AUJZ-R2 has a resolution of 10 bits.
- What is the maximum throughput rate of the AD7911AUJZ-R2?
The maximum throughput rate is up to 250 kSPS.
- What is the power supply range for the AD7911AUJZ-R2?
The power supply range is from 2.35 V to 5.25 V.
- How much power does the AD7911AUJZ-R2 consume at 250 kSPS?
It consumes 4 mW typical at 3 V and 13.5 mW typical at 5 V.
- What is the input bandwidth of the AD7911AUJZ-R2?
The input bandwidth exceeds 6 MHz.
- Does the AD7911AUJZ-R2 have pipeline delays?
No, there are no pipeline delays associated with this part.
- What types of interfaces does the AD7911AUJZ-R2 support?
It supports high-speed serial interfaces compatible with SPI, QSPI, MICROWIRE, and DSP.
- What is the standby current of the AD7911AUJZ-R2?
The standby current is a maximum of 1 μA.
- How is the reference voltage for the AD7911AUJZ-R2 determined?
The reference voltage is taken internally from VDD.
- How are the channels selected and the mode of operation controlled in the AD7911AUJZ-R2?
The channels are selected through the DIN pin, and the mode of operation is controlled by the CS pin.
