Overview
The DAC7562SQDGSRQ1 is a 12-bit, dual-channel, low-power, digital-to-analog converter (DAC) produced by Texas Instruments. This device is part of the DACxx6x-Q1 family, which includes 12-bit, 14-bit, and 16-bit versions. The DAC7562SQDGSRQ1 is designed for applications requiring high precision and low power consumption, making it ideal for portable, battery-operated equipment and various industrial automation tasks.
It features a 2.5V internal reference with a temperature drift of 4 ppm/°C, ensuring stable and accurate output. The device operates over a wide power-supply range of 2.7V to 5.5V and is packaged in a 10-pin VSSOP (DGS) package.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 12-bit | |
| Power Supply Voltage | 2.7 to 5.5 | V |
| Internal Reference Voltage | 2.5 | V |
| Reference Temperature Drift | 4 ppm/°C (typ), 10 ppm/°C (max) | |
| Output Voltage Range | 0 to AVDD | V |
| Relative Accuracy | ±0.75 LSB | |
| Differential Nonlinearity | ±0.25 LSB | |
| Power Consumption | 4 mW (typ, 5-V AVDD, including internal reference current) | |
| Package Type | 10-pin VSSOP (DGS) | |
| Operating Temperature Range | -40 to 125 | °C |
| Serial Clock Frequency | Up to 50 MHz |
Key Features
- Low Power Consumption: Typically 4 mW at 5 V, including internal reference current, making it suitable for battery-operated devices.
- Ultra-low Glitch: Ensures minimal output disturbance during code changes.
- Internal Reference: 2.5V reference with 4 ppm/°C temperature drift.
- Buffered Voltage Output: Rail-to-rail operation for full-scale output range.
- Power-On Reset: Resets to zero scale by default, ensuring predictable startup behavior.
- Power-Down Mode: Reduces current consumption to typically 550 nA at 5 V.
- High-Speed Interface: Supports SPI, QSPI, Microwire, and DSP interfaces up to 50 MHz.
- LDAC and CLR Functions: Allows for simultaneous DAC updates and output clearing.
- Bidirectional Reference Pin: Can be used as either a reference input or output.
Applications
- Portable Instrumentation: Ideal for handheld and battery-powered measurement devices.
- PLC Analog Output Modules: Used in industrial control systems for precise analog output.
- Closed-Loop Servo Control: Suitable for applications requiring precise and stable analog signals.
- Data Acquisition Systems: Used in various data acquisition and logging systems.
- Programmable Gain and Offset Adjustment: Useful in applications requiring adjustable gain and offset.
- Voltage Controlled Oscillator Tuning: Can be used to tune VCOs in various electronic systems.
Q & A
- What is the resolution of the DAC7562SQDGSRQ1?
The DAC7562SQDGSRQ1 has a 12-bit resolution.
- What is the operating voltage range of the DAC7562SQDGSRQ1?
The device operates over a voltage range of 2.7V to 5.5V.
- What is the temperature drift of the internal reference voltage?
The internal reference voltage has a temperature drift of 4 ppm/°C (typ) and 10 ppm/°C (max).
- What is the power consumption of the DAC7562SQDGSRQ1?
The typical power consumption is 4 mW at 5 V, including the internal reference current.
- What is the package type of the DAC7562SQDGSRQ1?
The device is packaged in a 10-pin VSSOP (DGS) package.
- What is the operating temperature range of the DAC7562SQDGSRQ1?
The operating temperature range is -40°C to 125°C.
- What is the maximum serial clock frequency supported by the DAC7562SQDGSRQ1?
The device supports serial clock frequencies up to 50 MHz.
- Does the DAC7562SQDGSRQ1 have a power-down mode?
Yes, it has a power-down mode that reduces current consumption to typically 550 nA at 5 V.
- What are the LDAC and CLR functions used for in the DAC7562SQDGSRQ1?
The LDAC pin is used for simultaneous DAC updates, and the CLR pin is used for clearing the output.
- Can the reference pin be used as both an input and an output?
Yes, the reference pin is bidirectional and can be used as either a reference input or output.
