Overview
The AD7943BR, produced by Analog Devices Inc., is a high-performance 12-bit multiplying Digital-to-Analog Converter (DAC). This component operates from a single +3.3 V to +5 V supply and is designed for applications requiring fast interface and low power consumption. The AD7943BR features a serial interface, making it suitable for a variety of digital control systems.
Key Specifications
| Parameter | Value | Units | Comments |
|---|---|---|---|
| Resolution | 12 bits | ||
| Interface Type | Serial | ||
| Supply Voltage Range | 3.0 V to 5.5 V | V | |
| Power Consumption | 5 µA (typical), 28 mW (max) | µA, mW | No STB signal; with 1 MHz STB frequency |
| Operating Temperature | -40°C to +85°C | °C | Industrial temperature range |
| Settling Time | 600 ns (typical) | ns | To 0.01% of final value |
| Integral Nonlinearity (INL) | ±0.5 LSB (max) | LSB | |
| Differential Nonlinearity (DNL) | ±0.5 LSB (max) | LSB | |
| Output Type | Current - Unbuffered | ||
| Package Type | 16-lead SOIC | Small Outline Package |
Key Features
- Fast interface with 40 ns strobe pulsewidth and 600 ns settling time to 0.01% of final value.
- Low power consumption: 5 µA typical in standby mode and 28 mW maximum in active mode.
- High accuracy with ±0.5 LSB integral and differential nonlinearity.
- Low glitch energy: 60 nV-s with amplifier connected.
- Serial interface for easy integration into digital systems.
- Operates from a single +3.3 V to +5 V supply.
- Available in 16-lead DIP, 16-lead SOIC, and 20-lead SSOP packages.
Applications
- Battery-powered instrumentation.
- Laptop computers.
- Upgrades for all 754x series DACs (5 V designs).
- General digital control systems requiring fast and accurate analog output.
Q & A
- What is the resolution of the AD7943BR DAC?
The AD7943BR has a resolution of 12 bits. - What is the interface type of the AD7943BR?
The AD7943BR features a serial interface. - What is the supply voltage range for the AD7943BR?
The supply voltage range is from 3.0 V to 5.5 V. - What is the typical power consumption of the AD7943BR?
The typical power consumption is 5 µA in standby mode and up to 28 mW in active mode. - What is the operating temperature range of the AD7943BR?
The operating temperature range is from -40°C to +85°C. - What is the settling time of the AD7943BR?
The settling time is typically 600 ns to 0.01% of the final value. - What are the INL and DNL specifications of the AD7943BR?
Both INL and DNL are ±0.5 LSB (max). - What is the output type of the AD7943BR?
The output is current - unbuffered. - In what packages is the AD7943BR available?
The AD7943BR is available in 16-lead DIP, 16-lead SOIC, and 20-lead SSOP packages. - What are some common applications of the AD7943BR?
Common applications include battery-powered instrumentation, laptop computers, and upgrades for all 754x series DACs (5 V designs).
