Overview
The DAC108S085CIMTX from Texas Instruments is a full-featured, general-purpose OCTAL 10-bit voltage-output digital-to-analog converter (DAC). This device is designed to operate from a single supply voltage ranging from +2.7V to +5.5V, making it versatile for various applications. It consumes low power, with typical power consumption of 1.95 mW at 3V and 4.85 mW at 5V, which is ideal for battery-operated equipment. The DAC108S085 is packaged in a 16-lead WQFN or TSSOP package, with the WQFN package being the smallest in its class, enhancing its suitability for space-constrained designs.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 10 Bits | |
| Integral Non-Linearity (INL) | ±2 LSB (Max) | |
| Differential Non-Linearity (DNL) | +0.35/-0.2 LSB (Max) | |
| Settling Time | 6 µs (Max) | µs |
| Zero Code Error | +15 mV (Max) | mV |
| Full-Scale Error | -0.75% FSR (Max) | % |
| Supply Power - Normal | 1.95 mW (3V)/4.85 mW (5V) (Typ) | mW |
| Supply Power - Power Down | 0.3 µW (3V)/1 µW (5V) (Typ) | µW |
| Operating Temperature Range | -40°C to +125°C | °C |
| Reference Voltage Range | 0.5V to VA | V |
| Maximum Load Capacitance | 1500 pF | pF |
Key Features
- Low Power Operation: Consumes 1.95 mW at 3V and 4.85 mW at 5V, making it suitable for battery-operated devices.
- Rail-to-Rail Voltage Output: Output amplifiers provide rail-to-rail output voltage swing.
- Dual Reference Voltages: Two independent reference inputs for channels A-D and E-H, each adjustable from 0.5V to VA.
- Simultaneous Output Updating: All eight DAC channels can be updated simultaneously or individually.
- Daisy Chain Capability: Allows unlimited number of DACs to be updated using a single serial interface.
- Individual Channel Power Down: Each DAC channel can be independently powered down to reduce power consumption.
- Power-on Reset to 0V: Ensures DAC outputs power up to zero volts and remain there until a valid write to the device.
- Wide Power Supply Range: Operates from +2.7V to +5.5V supply voltage.
- High-Speed Serial Interface: Compatible with SPI, QSPI, MICROWIRE, and DSP interfaces, operating up to 40 MHz.
Applications
- Battery-Powered Instruments: Ideal for low-power consumption requirements in portable devices.
- Digital Gain and Offset Adjustment: Suitable for applications requiring precise gain and offset adjustments.
- Programmable Voltage & Current Sources: Can be used in various programmable source applications.
- Programmable Attenuators: Useful in signal attenuation and conditioning applications.
- Voltage Reference for ADCs: Can serve as a reference voltage source for analog-to-digital converters.
- Sensor Supply Voltage: Suitable for powering sensors in various industrial and automotive applications.
- Range Detectors: Can be used in detection and measurement applications requiring precise voltage outputs.
Q & A
- What is the resolution of the DAC108S085?
The DAC108S085 has a resolution of 10 bits.
- What is the operating voltage range of the DAC108S085?
The DAC108S085 operates from a single supply voltage ranging from +2.7V to +5.5V.
- What is the typical power consumption of the DAC108S085?
The typical power consumption is 1.95 mW at 3V and 4.85 mW at 5V.
- Does the DAC108S085 support daisy chain operation?
- What is the maximum clock rate of the serial interface?
The serial interface operates at clock rates up to 40 MHz.
- Can each DAC channel be powered down independently?
- What is the operating temperature range of the DAC108S085?
- Does the DAC108S085 have a power-on reset feature?
- What is the maximum load capacitance that the DAC108S085 can drive?
- Is the DAC108S085 suitable for battery-operated devices?
