Overview
The DAC5574IDGS from Texas Instruments is a quad-channel, 8-bit digital-to-analog converter (DAC) that features low power consumption and a high-speed I2C interface. This device is designed for applications requiring multiple analog output channels with precise control and minimal power usage. The DAC5574IDGS operates over a wide analog power supply range of 2.7 V to 5.5 V and is housed in a compact 10-lead MSOP package, making it suitable for space-constrained and battery-operated devices.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 8 bits | |
| Relative Accuracy | ±0.15 to ±0.5 LSB | |
| Differential Nonlinearity | ±0.02 to ±0.25 LSB | |
| Zero-Scale Error | 5 to 20 mV | |
| Full-Scale Error | -0.15 to ±1.0% of FSR | |
| Gain Error | ±1.0% of FSR | |
| Output Voltage Range | 0 to VDD | V |
| Update Rate | Up to 188 kSPS | |
| Analog Power Supply | 2.7 V to 5.5 V | V |
| Operating Temperature | -40°C to 105°C | °C |
| Package Type | 10-lead MSOP | |
| Power Consumption (Normal Operation) | 500 to 900 µA at 3 V VDD | µA |
| Power Consumption (Power-Down Mode) | 0.2 to 1 µA at 5 V VDD | µA |
Key Features
- Micropower Operation: Low power consumption of 500 µA at 3 V VDD, making it suitable for battery-operated devices.
- Fast Update Rate: Up to 188 kSPS update rate with an I2C interface supporting high-speed mode up to 3.4 Mbps.
- Per-Channel Power-Down Capability: Each channel can be powered down independently, reducing current consumption to 200 nA at 5 V.
- On-Chip Output Buffer Amplifier: Rail-to-rail output swing with an on-chip precision output amplifier.
- Power-On Reset to Zero: Ensures the DAC outputs power up at zero volts and remain there until a valid write takes place.
- Double-Buffered Input Register: Allows for synchronous updates and supports up to 16 channels on the bus.
- Address Support for up to Four DAC5574s: Multiple devices can be connected to the same I2C bus, with broadcast addressing supported for synchronous updates.
- Small 10 Lead MSOP Package: Compact packaging suitable for space-constrained applications.
Applications
- Portable Battery-Operated Equipment: Ideal for devices requiring low power consumption and multiple analog output channels.
- Industrial Automation: Suitable for control systems and automation where precise analog outputs are necessary.
- Medical Devices: Can be used in medical equipment that requires low power and high precision analog outputs.
- Aerospace and Defense: Applicable in systems where low power consumption and reliability are critical.
- Consumer Electronics: Useful in various consumer devices that require multiple analog outputs with low power consumption.
Q & A
- What is the resolution of the DAC5574IDGS?
The DAC5574IDGS has an 8-bit resolution.
- What is the typical power consumption of the DAC5574IDGS at 3 V VDD?
The typical power consumption is 500 µA at 3 V VDD.
- What is the maximum update rate of the DAC5574IDGS?
The maximum update rate is up to 188 kSPS.
- Does the DAC5574IDGS support per-channel power-down?
Yes, each channel can be powered down independently, reducing current consumption to 200 nA at 5 V.
- What is the output voltage range of the DAC5574IDGS?
The output voltage range is from 0 to VDD.
- What type of interface does the DAC5574IDGS use?
The DAC5574IDGS uses an I2C interface supporting high-speed mode up to 3.4 Mbps.
- Can multiple DAC5574IDGS devices be connected to the same I2C bus?
Yes, up to four devices can be connected to the same I2C bus, with broadcast addressing supported for synchronous updates.
- What is the operating temperature range of the DAC5574IDGS?
The operating temperature range is from -40°C to 105°C.
- What type of package does the DAC5574IDGS come in?
The DAC5574IDGS comes in a 10-lead MSOP package.
- Does the DAC5574IDGS have a power-on reset feature?
Yes, the DAC5574IDGS has a power-on reset circuit that ensures the DAC outputs power up at zero volts and remain there until a valid write takes place.
