AD5311R 10-Bit nanoDAC, I2C Interface and 2 ppm/°C On-Chip Reference

High Relative Accuracy (INL). ±0.5 LSB maximum. Low Drift 2.5 V On-Chip Reference. 5 ppm/°C maximum temperature coefficient.

The AD5310R/AD5311R, members of the nanoDAC™ family, are low power, single-channel, 10-bit buffered voltage-out DACs. The devices include a 2.5 V, 2 ppm/°C internal reference. The output span can be programmed to be 0 V to VREF or 0 V to 2 ×VREF. All devices operate from a single 2.7 V to 5.5 V supply and are guaranteed monotonic by design. The devices are available in 10-lead MSOP packages.

The AD5310R/AD5311R also incorporate a power-on reset circuit that ensures that the DAC output powers up to zeroscale and remains there until a valid write takes place. The device contains a power-down feature that reduces the current consumption of the device to 2 μA at 5 V while in power-down mode.

The AD5310R/AD5311R use a versatile SPI or I2C interface, including an asynchronous RESET pin and a VLOGIC pin, allowing 1.8 V compatibility.

PRODUCT HIGHLIGHTS

APPLICATIONS

Process controls
Data acquisition systems
Digital gain and offset adjustment
Programmable voltage sources
Optical modules

Features and Benefits

High relative accuracy (INL):
±0.5 LSB maximum
Low drift 2.5 V reference:
2 ppm/°C typical
Selectable span output:
2.5 V or 5 V
Total unadjusted error (TUE):
0.06% of FSR maximum
Offset error: ±1.5 mV maximum
Gain error: ±0.05 % of FSR maximum

Low glitch: 0.1 nV-sec
High drive capability: 20 mA
Low power: 1.2 mW at 3.3 V
Independent logic supply:
1.8 V to 5.5 V
Wide operating temperature range:
−40°C to +105°C
Robust 4 kV ESD protection