Overview
The AD5302BRMZ-REEL7 is a dual 8-bit buffered voltage output Digital-to-Analog Converter (DAC) manufactured by Analog Devices Inc. This component is part of the AD5302 series, which includes dual 8-bit, 10-bit, and 12-bit DACs. The AD5302BRMZ-REEL7 operates from a single +2.5 V to +5.5 V power supply and is housed in a 10-lead MicroSOIC package.
This DAC is designed for micropower operation, consuming 230 µA at 5 V, and features a power-down mode that reduces current consumption to 200 nA at 5 V and 50 nA at 3 V. The device includes a power-on reset circuit that ensures the DAC outputs power-up to 0 V and remain there until a valid write takes place.
Key Specifications
| Parameter | Min | Typ | Max | Unit | Test Conditions/Comments |
|---|---|---|---|---|---|
| Resolution | 8 Bits | ||||
| Relative Accuracy | ±0.5 | ±1 | LSB | A version: ±0.5 LSB, B version: ±1 LSB | |
| Differential Nonlinearity | ±0.02 | ±0.25 | LSB | ||
| Output Voltage Settling Time | 6 | 8 | μs | ¼ Scale to ¾ Scale Change | |
| Slew Rate | 0.7 | V/μs | |||
| Power Supply Voltage | 2.5 | 5.5 | V | ||
| Current Consumption | 230 | μA | @ 5 V | ||
| Power-Down Current | 200 | nA | @ 5 V | ||
| Package Type | 10-Lead MicroSOIC | ||||
Key Features
- Dual 8-bit buffered voltage output DACs in a single package
- Operates from a single +2.5 V to +5.5 V power supply
- Micropower operation: 230 µA at 5 V, power-down to 200 nA at 5 V and 50 nA at 3 V
- Guaranteed monotonic by design over all codes
- Buffered/Unbuffered reference input options
- 0 V to VREF output voltage range
- Power-on-reset to 0 V
- Simultaneous update of DAC outputs via LDAC pin
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz
- Rail-to-rail output amplifiers with a slew rate of 0.7 V/μs
Applications
- Industrial control systems
- Medical devices
- Aerospace and defense systems
- Automotive systems
- Consumer electronics requiring precise analog output control
Q & A
- What is the resolution of the AD5302BRMZ-REEL7 DAC?
The AD5302BRMZ-REEL7 has a resolution of 8 bits.
- What is the power supply voltage range for the AD5302BRMZ-REEL7?
The AD5302BRMZ-REEL7 operates from a single +2.5 V to +5.5 V power supply.
- What is the current consumption of the AD5302BRMZ-REEL7 at 5 V?
The current consumption is 230 µA at 5 V.
- What is the power-down current of the AD5302BRMZ-REEL7 at 5 V?
The power-down current is 200 nA at 5 V.
- Is the AD5302BRMZ-REEL7 guaranteed to be monotonic?
Yes, the AD5302BRMZ-REEL7 is guaranteed to be monotonic by design over all codes.
- What type of serial interface does the AD5302BRMZ-REEL7 use?
The AD5302BRMZ-REEL7 uses a 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP interface standards, operating at clock rates up to 30 MHz.
- What is the slew rate of the output amplifiers in the AD5302BRMZ-REEL7?
The slew rate of the output amplifiers is 0.7 V/μs.
- Does the AD5302BRMZ-REEL7 have rail-to-rail output capability?
Yes, the AD5302BRMZ-REEL7 has rail-to-rail output amplifiers.
- How does the power-on-reset feature work in the AD5302BRMZ-REEL7?
The power-on-reset circuit ensures that the DAC outputs power-up to 0 V and remain there until a valid write takes place.
- Can the DAC outputs of the AD5302BRMZ-REEL7 be updated simultaneously?
Yes, the DAC outputs can be updated simultaneously via the LDAC pin.
