The MAX7500-MAX7504 are temperature sensors produced by TI company. They use a high-resolution sigma-delta analog-to-digital converter to accurately measure temperature and provide an overtemperature alarm/interrupt/shutdown output. Communication is through an I2C-compatible 2-wire serial interface. The MAX7500/MAX7501/MAX7502 integrate a timeout feature that offers protection against I2C bus lockups. The MAX7503/MAX7504 do not include the timeout feature. The 2-wire serial interface accepts standard write byte, read byte, send byte, and receive byte commands to read the temperature data and configure the behavior of the open-drain overtemperature shutdown output. The MAX7500 features three address select lines, while the MAX7501-MAX7504 feature two address select lines and a RESET input. The MAX7500/MAX7501/MAX7502s' 3.0V to 5.5V supply voltage range, low 250µA supply current, and a lockup-protected I2C-compatible interface make them ideal for a wide range of applications, including personal computers (PCs), electronic test equipment, and office electronics. The MAX7500-MAX7504 are available in 8-pin µMAX® and SO packages and operate over the -55°C to +125°C temperature range.
The MAX7500‑MAX7504 family are digital temperature sensors with a built‑in thermal watchdog and I²C‑compatible 2‑wire interface. They provide high‑resolution temperature measurements, over‑temperature alarm/interrupt/shutdown output, and optional bus‑lockup timeout protection. The devices are suited for PCs, electronic test equipment, and office electronics.
Each device operates from 3.0 V to 5.5 V, consumes low supply current, and offers configurable address lines (three for MAX7500, two for MAX7501‑MAX7504) plus a reset input. Packages are offered in 8‑pin UMAX® and 8‑pin SO formats, and full ordering information is available on Maxim’s website.
| Supply Voltage Range | 3.0 V to 5.5 V |
|---|---|
| Operating Temperature Range | -55 °C to +125 °C |
| Quiescent Supply Current | 250 µA (typ) |
| Shutdown Supply Current | 3 µA (typ) |
| Temperature Accuracy | +1.5 °C (max) (-25 °C to +100 °C) |
| Resolution | 9 bits |
| Conversion Time | 100 ms |
| Package Types | 8‑Pin UMAX, 8‑Pin SO |
They operate from 3.0 V to 5.5 V.
The MAX7500 provides three address select lines (A0, A1, A2).