Overview
The DAC8534IPWG4, produced by Texas Instruments, is a quad-channel, 16-bit Digital-to-Analog Converter (DAC) designed for low-power operation and featuring a flexible serial host interface. This device is ideal for applications requiring multiple analog output channels with high precision and low power consumption. The DAC8534 operates over a supply range of 2.7V to 5.5V and supports a standard 3-wire serial interface with clock frequencies up to 30MHz at 5V. Each channel includes an on-chip precision output amplifier allowing rail-to-rail output swing. The device also includes a power-on reset circuit and per-channel power-down features, making it suitable for portable battery-operated equipment and other low-power applications.
Key Specifications
| Parameter | 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 |
| Gain Error | - | - | ±1.0 | % of FSR |
| Output Voltage Range | 0 | - | VREFH | V |
| Output Voltage Settling Time | 8 | 10 | - | µs |
| Power Supply Range | 2.7 | - | 5.5 | V |
| Normal Mode Current Consumption | 0.95 | - | 1.6 | mA |
| Power-Down Mode Current Consumption | 0.05 | - | 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 precision output 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
- TSSOP-16 package
- Ultra-low AC crosstalk: –100dB typ
- Power-on reset to zero-scale
- Flexible serial host interface with clock frequencies up to 30MHz
Applications
- Portable instrumentation
- Closed-loop servo-control
- Process control
- Data acquisition systems
- Programmable attenuation
- PC peripherals
Q & A
- What is the resolution of the DAC8534?
The DAC8534 has a resolution of 16 bits.
- What is the operating voltage range of the DAC8534?
The DAC8534 operates over a supply range of 2.7V to 5.5V.
- What is the maximum clock frequency for the serial interface?
The serial interface can operate with clock frequencies up to 30MHz at 5V.
- Does the DAC8534 have power-down features?
- What is the settling time for the output voltage?
The output voltage settling time is 10µs to ±0.003% FSR.
- What is the package type of the DAC8534?
The DAC8534 is available in a TSSOP-16 package.
- What are the key applications of the DAC8534?
The DAC8534 is used in portable instrumentation, closed-loop servo-control, process control, data acquisition systems, programmable attenuation, and PC peripherals.
- Does the DAC8534 support simultaneous output updates?
- What is the operating temperature range of the DAC8534?
The specified operating temperature range is –40°C to +105°C.
- How does the power-on reset feature work?
The power-on reset circuit ensures that the DAC outputs power up at zero-scale and remain there until a valid write takes place.
