DAC7311IDCKR

The DAC5311 (8-bit), DAC6311 (10-bit), and DAC7311 (12-bit) devices are low-power, single-channel, voltage output digital-to-analog converters (DACs). The low power consumption of these devices in normal operation (0.55 mW at 5 V, reducing to 2.5 μW in power-down mode) makes it ideally suited for portable, battery-operated applications. These devices are monotonic by design, provide excellent linearity, and minimize undesired code-to-code transient voltages while offering an easy upgrade path within a pin-compatible family. All devices use a versatile, three-wire serial interface that operates at clock rates of up to 50 MHz and is compatible with standard SPI, QSPI, Microwire, and digital signal processor (DSP) interfaces. All devices use an external power supply as a reference voltage to set the output range. The devices incorporate a power-on reset (POR) circuit that ensures the DAC output powers up at 0 V and remains there until a valid write to the device occurs. The DAC5311, DAC6311, and DAC7311 contain a power-down feature, accessed over the serial interface, that reduces current consumption of the device to 0.1 μA at 2.0 V in power-down mode. These devices are pin-compatible with the DAC8311 and DAC8411, offering an easy upgrade path from 8-, 10-, and 12-bit resolution to 14- and 16-bit. All devices are available in a small, 6-pin, SC70 (SOT) package. This package offers a flexible, pin- and function-compatible, drop-in solution within the family over an extended temperature range of -40°C to +125°C.

Applications

• Portable, Battery-Powered instruments
• Process Controls
• Digital Gain and Offset Adjustment
• Programmable Voltage and Current Sources

Key features

• Relative Accuracy:
• 0.25 LSB INL (DAC5311: 8-Bit)
• 0.5 LSB INL (DAC6311: 10-Bit)
• 1 LSB INL (DAC7311: 12-Bit)
• microPower Operation: 80 μA at 2.0 V
• Power-Down: 0.5 μA at 5 V, 0.1 μA at 2.0 V
• Wide Power Supply: 2.0 V to 5.5 V
• Power-On Reset to Zero Scale
• Straight Binary Data Format
• Low Power Serial Interface With Schmitt Triggered Inputs: up to 50 MHz
• On-Chip Output Buffer Amplifier, Rail-to-Rail Operation
• SYNC Interrupt Facility
• Extended Temperature Range -40°C to +125°C
• Pin-Compatible Family in a Tiny, 6-Pin SC70 Package