Overview
The AD5302BRM is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Analog Devices Inc. This component is designed to operate from a single 2.5 V to 5.5 V supply, making it suitable for a wide range of applications, particularly in portable battery-powered instruments. The AD5302BRM features on-chip rail-to-rail output buffer amplifiers and a low power serial interface with Schmitt-triggered inputs, ensuring high performance and efficiency.
Key Specifications
| Parameter | Value | Unit | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 8 | Bits | |
| Relative Accuracy | ±1 LSB (A Version), ±0.5 LSB (B Version) | LSB | |
| Differential Nonlinearity | ±0.5 LSB (A Version), ±0.25 LSB (B Version) | LSB | Guaranteed monotonic by design over all codes |
| Offset Error | ±0.4 % of FSR | % of FSR | |
| Gain Error | ±0.15 % of FSR | % of FSR | |
| Output Voltage Range | 0 V to VREF | V | |
| Output Voltage Settling Time | 6 μs to 8 μs (¼ Scale to ¾ Scale Change) | μs | VREF = VDD = 5 V, RL = 2 kΩ, CL = 200 pF |
| Slew Rate | 0.7 V/μs | V/μs | |
| Power Supply Range | 2.5 V to 5.5 V | V | |
| Current Consumption | 230 μA @ 3 V (including reference current) | μA | |
| Power-Down Current | 200 nA @ 5 V, 50 nA @ 3 V | nA | |
| Package Type | 10-lead MSOP, 10-TFSOP |
Key Features
- Dual 8-bit buffered voltage output DACs in a single package
- On-chip rail-to-rail output buffer amplifiers
- Low power serial interface with Schmitt-triggered inputs
- Power-on-reset to 0 V and simultaneous update of DAC outputs via LDAC
- Double-buffered input logic and buffered/unbuffered reference input options
- Micropower operation: 230 μA @ 3 V (including reference current)
- Power-down to 200 nA @ 5 V, 50 nA @ 3 V
- Guaranteed monotonic by design over all codes
Applications
- Portable battery-powered instruments
- Digital gain and offset adjustment
- Programmable voltage and current sources
- Programmable attenuators
- Automotive applications
Q & A
- What is the resolution of the AD5302BRM DAC?
The AD5302BRM has a resolution of 8 bits.
- What is the power supply range for the AD5302BRM?
The AD5302BRM operates from a single 2.5 V to 5.5 V supply.
- What is the current consumption of the AD5302BRM at 3 V?
The current consumption is 230 μA at 3 V, including reference current.
- Does the AD5302BRM have a power-down feature?
- What is the output voltage range of the AD5302BRM?
The output voltage range is from 0 V to VREF.
- What is the slew rate of the AD5302BRM?
The slew rate is 0.7 V/μs.
- Is the AD5302BRM guaranteed to be monotonic?
- What types of packages are available for the AD5302BRM?
The AD5302BRM is available in 10-lead MSOP and 10-TFSOP packages.
- Can the outputs of both DACs be updated simultaneously?
- Is the AD5302BRM suitable for automotive applications?
