Overview
The DAC8532IDGKG4, produced by Texas Instruments, is a dual-channel, 16-bit digital-to-analog converter (DAC) designed for low power operation. This device features a flexible serial host interface and is suitable for applications requiring precise analog output with minimal power consumption. Each channel of the DAC8532 includes an on-chip precision output amplifier, enabling rail-to-rail output swing over a supply range of 2.7 V to 5.5 V. The device is particularly useful in portable battery-operated equipment and other low-power applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Number of Channels | 2 | |
| Supply Voltage Range | 2.7 V to 5.5 V | V |
| Current Consumption (Normal Mode) | 500 µA (VDD = 5 V), 450 µA (VDD = 2.7 V to 3.6 V) | µA |
| Current Consumption (Power-Down Mode) | 0.2 µA (VDD = 3.6 V to 5.5 V), 0.05 µA (VDD = 2.7 V to 3.6 V) | µA |
| Settling Time | 10 µs to ±0.003% FSR | µs |
| Serial Interface Clock Frequency | Up to 30 MHz at VDD = 5 V | MHz |
| Operating Temperature Range | –40°C to 105°C | °C |
| Package Type | VSSOP-8 |
Key Features
- Low Power Operation: MicroPower operation with current consumption as low as 500 µA at 5 V and 450 µA at 2.7 V to 3.6 V.
- Flexible Serial Interface: Standard 3-wire serial interface compatible with SPI and QSP, supporting clock frequencies up to 30 MHz at 5 V.
- On-Chip Output Buffer Amplifier: Each channel features an output buffer amplifier capable of rail-to-rail output swing.
- Power-On Reset to Zero-Scale: Ensures that the DAC outputs power up at zero-scale and remain there until a valid write takes place.
- Double-Buffered Input Architecture: Allows for simultaneous or sequential output update and power-down.
- Ultra-Low AC Crosstalk: Typical crosstalk of –100 dB.
- Power-Down Modes: Four power-down modes accessible via the serial interface, reducing current consumption to as low as 200 nA at 5 V.
Applications
The DAC8532IDGKG4 is ideally suited for various low-power applications, including:
- Portable battery-operated equipment.
- Industrial control systems.
- Aerospace and defense systems.
- Medical devices requiring precise analog output.
- Automotive systems where low power consumption is critical.
Q & A
- What is the resolution of the DAC8532IDGKG4?
The DAC8532IDGKG4 has a resolution of 16 bits.
- How many channels does the DAC8532IDGKG4 have?
The DAC8532IDGKG4 is a dual-channel DAC.
- What is the supply voltage range for the DAC8532IDGKG4?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the typical current consumption of the DAC8532IDGKG4 in normal mode?
The typical current consumption is 500 µA at 5 V and 450 µA at 2.7 V to 3.6 V.
- How does the power-on reset feature work?
The power-on reset feature ensures that the DAC outputs power up at zero-scale and remain there until a valid write takes place.
- What is the maximum clock frequency for the serial interface?
The serial interface can operate with clock frequencies up to 30 MHz at 5 V.
- What are the power-down modes available for the DAC8532IDGKG4?
There are four power-down modes accessible via the serial interface, reducing current consumption significantly.
- What is the operating temperature range for the DAC8532IDGKG4?
The operating temperature range is from –40°C to 105°C.
- What type of package is the DAC8532IDGKG4 available in?
The DAC8532IDGKG4 is available in a VSSOP-8 package.
- What are some typical applications for the DAC8532IDGKG4?
Typical applications include portable battery-operated equipment, industrial control systems, aerospace and defense systems, medical devices, and automotive systems.
