The LTC2970 and LTC2970-1 are dual power‑supply monitor and margining controllers that provide precise voltage and current measurement, fault monitoring, and programmable IDAC output. They communicate via an SMBus‑compatible 2‑¢™ bus interface and include on‑chip temperature sensing.
Key specifications include a 14‑bit ADC, two 8‑bit voltage‑buffered IDACs, a 1.229 V reference output, and operation over a –40 °C to 85 °C temperature range. The devices are supplied in a 24‑lead 4 mm × 5 mm QFN package and are intended for use in programmable power supplies, dual‑supply monitoring, and margining applications.
| Total Unadjusted Error | <0.5% |
|---|---|
| ADC Resolution | 14‑bit |
| IDAC Resolution | 8‑bit |
| Reference Output Voltage | 1.229 V |
| Supply Current (12 V) typical | 15 mA |
| Package | 24‑Lead 4 mm × 5 mm QFN |
It uses a 2‑¢™ Bus Interface that is compatible with SMBus.
The device includes two 8‑bit IDACs with voltage buffers.
The reference output voltage is 1.229 V.