Overview
The DAC8734SPFB is a high-accuracy, quad-channel, 16-bit digital-to-analog converter (DAC) produced by Texas Instruments. This device operates from supply voltages of ±5V to ±18V in bipolar output mode and from ±5V to +24V/-12V in unipolar mode. It is designed to provide excellent integral nonlinearity (INL) error of ±1 LSB, low glitch, and low noise over an operating temperature range of -40°C to +105°C. The DAC8734 is trimmed in production for very low zero and gain errors and features a user-programmable system-level calibration function to achieve ±0.125 LSB zero error and ±1 LSB gain error.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16 Bits | |
| Linearity Error (INL) | ±1 LSB | |
| Bipolar Output Range | Up to ±16V | V |
| Unipolar Output Range | 0V to +20V | V |
| Settling Time | 6µs | µs |
| Noise | 60nV/√Hz | nV/√Hz |
| Operating Temperature Range | -40°C to +105°C | °C |
| Power Consumption | 280 mW | mW |
| Package Types | QFN-40 (6x6mm), TQFP-48 (7x7mm) | |
| SPI Clock Rate | Up to 50MHz | MHz |
| SPI Logic Levels | 1.8V, 3V, 5V | V |
Key Features
- Bipolar Output: Up to ±16V
- Unipolar Output: 0V to +20V
- 16-Bit Monotonic
- Relative Accuracy: 1 LSB Max
- Low Zero and Gain Errors: Before user calibration 4 LSB, after user calibration 0.125 LSB zero error and 1 LSB gain error
- Low Noise: 60nV/√Hz
- Settling Time: 6µs
- Configurable Gain: x2/x4
- Analog Output Monitor
- Power-Down Mode
- SPI: Up to 50MHz, 1.8V/3V/5V Logic
- Daisy-Chain Mode
Applications
- Automatic Test Equipment
- Instrumentation
- Industrial Process Control
- Communications
Q & A
- What is the resolution of the DAC8734?
The DAC8734 has a resolution of 16 bits.
- What are the output voltage ranges for the DAC8734?
The DAC8734 can operate in bipolar mode up to ±16V and in unipolar mode from 0V to +20V.
- What is the settling time of the DAC8734?
The settling time of the DAC8734 is 6µs.
- What are the package options for the DAC8734?
The DAC8734 is available in QFN-40 (6x6mm) and TQFP-48 (7x7mm) packages.
- What is the operating temperature range of the DAC8734?
The operating temperature range of the DAC8734 is -40°C to +105°C.
- What is the power consumption of the DAC8734?
The power consumption of the DAC8734 is 280 mW.
- What are the SPI clock rates supported by the DAC8734?
The DAC8734 supports SPI clock rates up to 50MHz.
- What logic levels are supported by the SPI interface of the DAC8734?
The SPI interface of the DAC8734 supports 1.8V, 3V, and 5V logic levels.
- What calibration options are available for the DAC8734?
The DAC8734 features a user-programmable system-level calibration function to achieve ±0.125 LSB zero error and ±1 LSB gain error.
- In which applications is the DAC8734 commonly used?
The DAC8734 is commonly used in automatic test equipment, instrumentation, industrial process control, and communications.
