Overview
The DAC8534IPWR is a quad-channel, 16-bit Digital-to-Analog Converter (DAC) produced by Texas Instruments. This device is designed for low-power operation and features a flexible serial host interface. It is suitable for a variety of applications requiring precise analog output, including portable instrumentation, closed-loop servo-control, process control, data acquisition systems, and programmable attenuation. The DAC8534IPWR operates within a supply range of 2.7V to 5.5V and supports a standard 3-wire serial interface with input data clock frequencies up to 30MHz at 5V.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Units |
|---|---|---|---|---|---|
| Resolution | 16 | Bits | |||
| Relative Accuracy | ±0.0987 | % of FSR | |||
| Differential Nonlinearity | ±1 | LSB | |||
| Zero-Scale Error | +5 | +20 | mV | ||
| Full-Scale Error | –0.15 | –1.0 | % of FSR | ||
| Output Voltage Range | 0 | VREFH | V | ||
| Output Voltage Settling Time | To ±0.003% FSR | 8 | 10 | µs | |
| Power Supply | 2.7 | 5.5 | V | ||
| Current Consumption (Normal Mode) | AVDD = 5V | 0.95 | 1.6 | mA | |
| Current Consumption (Power-Down Mode) | AVDD = 5V | 0.8 | 1 | µA | |
| Operating Temperature Range | –40 | +105 | °C |
Key Features
- Quad-channel, 16-bit Digital-to-Analog Converter
- Low-power operation: 950µA at 5V, reducing to 4µW in power-down mode
- On-chip output buffer amplifier with rail-to-rail operation
- Double-buffered input architecture
- Simultaneous or sequential output update and power-down
- 16-channel broadcast capability
- Schmitt-triggered inputs
- Power-on reset to zero-scale
- Ultra-low AC crosstalk: –100dB typ
- Settling time: 10µs to ±0.003% FSR
- TSSOP-16 package
Applications
- Portable instrumentation
- Closed-loop servo-control
- Process control
- Data acquisition systems
- Programmable attenuation
- PC peripherals
Q & A
- What is the resolution of the DAC8534IPWR?
The DAC8534IPWR has a resolution of 16 bits.
- What is the operating voltage range of the DAC8534IPWR?
The device operates within a supply range of 2.7V to 5.5V.
- What is the maximum serial clock frequency supported by the DAC8534IPWR?
The DAC8534IPWR supports a serial clock frequency up to 30MHz at 5V.
- How does the power-on reset feature work on the DAC8534IPWR?
The power-on reset circuit ensures that the DAC outputs power up at zero-scale and remain there until a valid write takes place.
- What is the current consumption in normal and power-down modes?
In normal mode, the current consumption is 0.95mA to 1.6mA at 5V. In power-down mode, it reduces to 0.8µA to 1µA at 5V.
- What is the settling time of the DAC8534IPWR?
The settling time is 10µs to ±0.003% FSR.
- Does the DAC8534IPWR support simultaneous output updates?
Yes, the DAC8534IPWR supports simultaneous or sequential output updates and power-down.
- What is the package type of the DAC8534IPWR?
The DAC8534IPWR is available in a TSSOP-16 package.
- What are the key applications of the DAC8534IPWR?
The key applications include portable instrumentation, closed-loop servo-control, process control, data acquisition systems, and programmable attenuation.
- How does the serial interface of the DAC8534IPWR work?
The DAC8534IPWR uses a 3-wire serial interface (SYNC, SCLK, and DIN) compatible with SPI, QSPI, and Microwire interface standards.
