MAX1036-MAX1039 is a low-power 8-bit multichannel analog-to-digital converter with internal track/hold (T/H), voltage reference, clock, and an I2C-compatible 2-wire serial interface. These devices operate from a single supply and require only 350µA at the maximum sampling rate of 188ksps. Auto-Shutdown™ powers down the devices between conver- sions reducing supply current to less than 1µA at low throughput rates. The MAX1036/MAX1037 have four ana- log input channels each, while the MAX1038/MAX1039 have twelve analog input channels. The analog inputs are software configurable for unipolar or bipolar and single- ended or pseudo-differential operation. The full-scale analog input range is determined by the internal reference or by an externally applied reference voltage ranging from 1V to VDD. The MAX1037/ MAX1039 feature a 2.048V internal reference and the MAX1036/MAX1038 feature a 4.096V internal reference. The MAX1036/MAX1037 are available in 8-pin SOT23 packages. The MAX1038/MAX1039 are available in 16- pin QSOP packages. The MAX1036–MAX1039 are guar- anteed over the extended industrial temperature range (-40°C to +85°C). Refer to MAX1136–MAX1139 for 10-bit devices and to the MAX1236–MAX1239 for 12-bit devices.
The MAX1036‑MAX1039 family from Maxim Integrated provides low‑power, 8‑bit analog‑to‑digital conversion in compact 8‑pin SOT‑23 (MAX1036/1037) or 16‑pin QSOP (MAX1038/1039) packages. Devices operate from a single supply, consume as little as 350 µA at 188 ksps, and feature an auto‑shutdown mode that reduces quiescent current to less than 1 pA.
Four‑channel parts (MAX1036/1037) and twelve‑channel parts (MAX1038/1039) support both single‑ended and pseudo‑differential inputs, selectable unipolar or bipolar ranges, and internal reference voltages of 4.096 V (MAX1036/1038) or 2.048 V (MAX1037/1039). The devices communicate via a 2‑wire I²C‑compatible serial interface with fast‑mode up to 400 kHz and high‑speed mode up to 1.7 MHz.
| Resolution | 8 bits |
|---|---|
| Number of Channels | 4 (MAX1036/1037) or 12 (MAX1038/1039) |
| Supply Voltage | 2.7 V‑3.6 V (MAX1037/1039) or 4.5 V‑5.5 V (MAX1036/1038) |
| Operating Temperature Range | -40 °C to +85 °C |
| Maximum Sampling Rate | 188 ksps |
| Power‑down Current | < 1 pA |
| Interface Speed | 400 kHz Fast Mode, 1.7 MHz High‑Speed Mode |
| Internal Reference Voltage | 4.096 V (MAX1036/1038) or 2.048 V (MAX1037/1039) |
| Package Types | 8‑pin SOT‑23 (MAX1036/1037) or 16‑pin QSOP (MAX1038/1039) |
The devices operate from 2.7 V to 3.6 V for the MAX1037/1039 versions and from 4.5 V to 5.5 V for the MAX1036/1038 versions.
MAX1036 and MAX1037 provide four analog input channels, while MAX1038 and MAX1039 provide twelve channels.
Both MAX1037 and MAX1039 use a 2.048 V internal reference.
The maximum sampling rate is 188 ksps.