The TC1320 is an 8-bit digital-to-analog converter (DAC) from Microchip Technology Inc. It features ±2 LSB INL, ±0.8 LSB DNL, 2.7-5.5V single supply operation, simple SMBus/I2CTM serial interface, low power consumption, and it can be widely used in programmable voltage sources, digital controlled amplifiers/attenuators, process monitoring and control, etc.
The TC1320 is an 8‑bit digital‑to‑analog converter that operates from a single 2.7 V to 5.5 V supply. It uses a two‑wire SMBus/I²C‑compatible serial interface and includes a power‑on reset function. The device is offered in 8‑pin SOIC (narrow) and 8‑pin MSOP packages and is suited for programmable voltage sources, digitally controlled amplifiers, and process‑monitoring applications.
Key features include 8‑bit resolution, +2 LSB INL, +0.8 LSB DNL, low‑power operation (350 µA normal, 0.1 µA standby), and a buffered rail‑to‑rail output stage with a 0.8 V/µs slew rate. Detailed pin descriptions, SMBus timing diagrams, and register maps are provided for easy integration into microcontroller‑based systems.
| Supply Voltage (VPP) | 2.7 V to 5.5 V |
|---|---|
| Resolution | 8 bits |
| Integral Non‑Linearity (INL) | +2 LSB |
| Differential Non‑Linearity (DNL) | +0.8 LSB |
| Operating Current (Normal) | 350 µA |
| Standby Supply Current | 0.1 µA (VPP = 3.3 V) |
| Output Current (Source) | 20 mA |
| Output Current (Sink) | 50 mA |
| Output Slew Rate | 0.8 V/µs |
| Full‑Scale Settling Time | 10 µs |
| SMBus Clock Frequency | 10 kHz – 100 kHz |
The TC1320 uses the 7‑bit SMBus address 1001 000b (binary).
The device provides 8‑bit resolution.
It operates from 2.7 V up to 5.5 V single‑supply.
In standby mode the TC1320 draws about 0.1 µA (at VPP = 3.3 V).