Overview
The AD7237JRZ is a dual 12-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component is part of the AD7237A/AD7247A series, which are enhanced versions of the industry-standard AD7237/AD7247. The AD7237JRZ features a complete, dual DAC with output amplifiers and a Zener voltage reference on a single monolithic CMOS chip. It operates from single or dual supplies, with voltage ranges of 0 V to +5 V, 0 V to +10 V, and ±5 V. The device is known for its high speed, low power consumption, and precision, making it suitable for a variety of applications requiring high-resolution analog output.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12-bit |
| Number of DACs | 2 |
| Architecture | R-2R |
| Settling Time | 10 μs |
| Output Type | Voltage - Buffered |
| Data Interface | Parallel |
| Reference Type | Internal, External |
| Voltage Supply (Analog) | ±15 V |
| Integral Nonlinearity (INL)/Differential Nonlinearity (DNL) | ±1 LSB (Max), ±0.9 LSB (Max) |
| Operating Temperature | -40°C to 85°C |
| Package | 24-SOIC (0.295, 7.50mm Width) |
| Power Dissipation | 165 mW (typ) in single supply, 1000 mW (max) |
Key Features
- Dual 12-bit digital-to-analog converters with output amplifiers and Zener voltage reference.
- Single or dual supply operation with voltage ranges of 0 V to +5 V, 0 V to +10 V, and ±5 V.
- High speed data latches and interface logic, microprocessor compatible.
- Double buffered interface structure with an 8-bit wide data bus.
- Asynchronous LDAC signal for updating DAC latches and analog outputs.
- R-2R architecture for high accuracy and low distortion.
- Buffered voltage output capable of developing +10 V across a 2 kΩ load to GND.
Applications
- Medical devices
- Industrial control systems
- Automotive electronics
- Aerospace and defense applications
- Audio equipment
Q & A
- What is the resolution of the AD7237JRZ?
The AD7237JRZ has a 12-bit resolution. - How many DACs are included in the AD7237JRZ?
The AD7237JRZ includes two separate DACs in a single package. - What is the settling time of the AD7237JRZ?
The settling time of the AD7237JRZ is 10 μs. - What types of voltage supplies can the AD7237JRZ operate with?
The AD7237JRZ can operate with single or dual supplies, with voltage ranges of 0 V to +5 V, 0 V to +10 V, and ±5 V. - What is the data interface type of the AD7237JRZ?
The data interface type of the AD7237JRZ is parallel. - Can the AD7237JRZ use an external reference voltage?
Yes, the AD7237JRZ can use either an internal or an external reference voltage. - What is the operating temperature range of the AD7237JRZ?
The operating temperature range of the AD7237JRZ is -40°C to 85°C. - What package types are available for the AD7237JRZ?
The AD7237JRZ is available in 24-pin SOIC and hermetic dual-in-line package (DIP) options. - Is the AD7237JRZ RoHS compliant?
The AD7237JRZ is ROHS3 compliant. - What are some common applications of the AD7237JRZ?
The AD7237JRZ is commonly used in medical devices, industrial control systems, automotive electronics, aerospace and defense applications, and audio equipment.
