Texas Instruments Inc. (TI) has launched DAC8734, a four-channel, high-voltage, bipolar digital-to-analog converter (DAC) that features up to six times lower drift than competing devices along with the widest operating temperature range and the highest initial accuracy. Developed on TI’s HPA07 analog CMOS process technology, the 16-bit DAC8734 offers automated test equipment (ATE) and medical equipment designers space savings and flexibility in a 6x6mm QFN-40 or 7x7mm TQFP-48 package. The device is capable of driving ±16V or 0 to +20V across four channels, eliminating the external operational amplifier typically required for additional voltage gain. Designers need to add only a single voltage reference, such as the REF5050, for bipolar operation.
The device has an operating temperature range of -40°C to 105°C and integral non-linearity of ±1 LSB, maximum (0.006 percent FSR), even at 16-bit resolution. To further boost precision, the family is trimmed during manufacturing to a maximum gain error of 4 LSB (at 16 bits). Built-in user calibration further reduces gain error down to ±1 LSB, maximum, with a zero error of up to 1/8 LSB. The device’s programmable output range of 2x to 4x the reference voltage for bipolar operation at ±2V to ±16V also maximizes design flexibility.
Texas Instruments DAC8734 bipolar digital-to-analog converter
Texas Instruments
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