DAC Output Voltage | Output Voltage VLOAD | Minimum Load Resistance RLOAD | Maximum Line Resistance Compensation | Error |
---|---|---|---|---|
0V–5V | 0V–10V | 1kΩ | +25% of RLOAD | < 0.25% FSR |
The programmable voltage output with sense connections circuit provides a precise voltage across a load, compensating for parasitic series resistance. The amplifier A1 uses feedback from the high-side and low-side of the attached load to accurately regulate the voltage between VSENSE+ and VSENSE-. The digital-to-analog converter (DAC) output and discrete resistors set the voltage across the load. This circuit is used in applications where additional line resistance can be present and must be compensated for by increasing the output voltage to deliver the correct voltage to the load. Common end equipment that use this circuit include analog output modules, memory and semiconductor test equipment, spectroscopy, and data acquisition (DAQ) cards.
Device | Key Features | Link | Other Possible Devices |
---|---|---|---|
DACs | |||
DAC80501 | 16-bit resolution, 1-LSB INL, single-channel, voltage output DAC with 5ppm/°C internal reference | True 16-bit, 1-ch, SPI/I2C, voltage-output DAC in WSON package with precision internal reference | Precision DACs (≤10 MSPS) |
DAC81416 | 16-bit resolution, 1-LSB INL, 16-channel ±20-V high-voltage output DAC with 5ppm/°C internal reference | 16-channel 16-bit high-voltage output DAC with integrated internal reference | |
DAC80508 | 16-bit resolution, 1-LSB INL, octal-channel, voltage output DAC with 5ppm/°C internal reference | True 16-bit, 8-channel, SPI, voltage-output DAC with precision internal reference | |
Op Amps | |||
OPA196 | Low-offset (100µV), Low-drift, rail-to-rail I/O, 2.25V to 36V supply | Single, 36V, low power, all-purpose amplifier with mux-friendly input | Operational amplifiers (op amps) |
TLV170 | Cost-sensitive, rail-to-rail output, 2.7V to 36V supply | Single, 36V, 1.2MHz, low-power operational amplifier for cost-sensitive applications | |
OPA192 | Precision, ultra-low offset (5µV) and drift, rail-to-rail I/O, 4.5V to 36V supply | High-Voltage, Rail-to-Rail Input/Output, 5µV, 0.2µV/˚C, Precision Operational Amplifier |
Texas Instruments, Programmable Voltage Output with Sense Connections, source files