Overview
The AD7921ARMZ is a 12-bit, high-speed, low-power, 2-channel successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply ranging from 2.35 V to 5.25 V and features throughput rates of up to 250 kSPS. It is designed to provide high performance and low power consumption, making it suitable for a variety of applications, including battery-powered systems, medical instruments, and data acquisition systems.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 12-bit |
| Number of Channels | 2 |
| Power Supply Range | 2.35 V to 5.25 V |
| Throughput Rate | Up to 250 kSPS |
| Input Range | 0 to VDD |
| Input Bandwidth | Exceeds 6 MHz |
| Power Consumption | 4 mW typ at 250 kSPS with 3 V supplies, 13.5 mW typ at 250 kSPS with 5 V supplies |
| Package Type | 8-lead MSOP, 8-lead TSOT |
| Operating Temperature Range | -40°C to +85°C |
Key Features
- Fast throughput rate of up to 250 kSPS
- Low power consumption: 4 mW at 250 kSPS with 3 V supplies and 13.5 mW at 250 kSPS with 5 V supplies
- Wide input bandwidth: exceeds 6 MHz
- No pipeline delays
- High speed serial interface: SPI/QSPI/MICROWIRE/DSP compatible
- Standby mode: 1 μA maximum
- Flexible power/serial clock speed management
- Low-noise, wide bandwidth track-and-hold amplifier
Applications
- Battery-powered systems
- Medical instruments
- Mobile communications
- Instrumentation and control systems
- Data acquisition systems
- High speed modems
- Optical sensors
Q & A
- What is the resolution of the AD7921ARMZ ADC?
The AD7921ARMZ is a 12-bit analog-to-digital converter.
- What is the power supply range for the AD7921ARMZ?
The device operates from a single power supply ranging from 2.35 V to 5.25 V.
- What is the maximum throughput rate of the AD7921ARMZ?
The throughput rate can be up to 250 kSPS.
- What is the input range for the AD7921ARMZ?
The input range is from 0 to VDD.
- What types of packages are available for the AD7921ARMZ?
The device is available in 8-lead MSOP and 8-lead TSOT packages.
- What is the operating temperature range for the AD7921ARMZ?
The operating temperature range is from -40°C to +85°C.
- Does the AD7921ARMZ have pipeline delays?
No, the AD7921ARMZ does not have pipeline delays.
- What interfaces are supported by the AD7921ARMZ?
The device supports high speed serial interfaces such as SPI, QSPI, MICROWIRE, and DSP.
- What is the power consumption in standby mode?
The power consumption in standby mode is 1 μA maximum.
- What are some typical applications of the AD7921ARMZ?
Typical applications include battery-powered systems, medical instruments, mobile communications, instrumentation and control systems, data acquisition systems, high speed modems, and optical sensors.
