the max1444 is a 10-bit, 3v analog-to-digital converter (adc) that features a pipelined 10-stage adc architecture with fully differential wideband track-and-hold (t/h) input and digital error correction incorporating a fully differential signal path. this adc is optimized for low-power, high dynamic performance applications in imaging and digital communications. the max1444 operates from a single 2.7v to 3.6v supply, consuming only 57mw while delivering a 59.5db signal-to-noise ratio (snr) at a 20mhz input frequency. the fully differential input stage has a 400mhz -3db bandwidth and may be operated with single-ended inputs. in addition to low operating power, the max1444 features a 5µa power-down mode for idle periods. an internal 2.048v precision bandgap reference is used to set the adc full-scale range. a flexible reference structure allows the user to supply a buffered, direct, or externally derived reference for applications requiring increased accuracy or a different input voltage range. higher speed, pin-compatible versions of the max1444 are also available. please refer to the max1446 data sheet (60msps) and the max1448 data sheet (80msps). the max1444 has parallel, offset binary, cmos-compatible three-state outputs that can be operated from 1.7v to 3.6v to allow flexible interfacing. the device is available in a 5x5mm 32-pin tqfp package and is specified over the extended industrial (-40°c to +85°c) temperature range.
The MAX1444 is a 10‑bit analog‑to‑digital converter optimized for low‑power, high‑dynamic‑performance applications such as imaging and digital communications. It operates from a single 2.7 V to 3.6 V supply and consumes only 57 mW while delivering 59.5 dB SNR at a 20 MHz input frequency.
Key features include a fully differential wide‑band track‑and‑hold front end with 400 MHz -3 dB bandwidth, a 2.048 V precision bandgap reference, CMOS‑compatible three‑state offset‑binary outputs, and availability in a 32‑pin TQFP package. The device is specified over an extended industrial temperature range of –40 °C to +85 °C and supports both differential and single‑ended inputs.
| Resolution | 10 bits |
|---|---|
| Supply Voltage | 2.7 V to 3.6 V |
| Power Consumption (normal operation) | 57 mW |
| Maximum Clock Frequency | 40 MHz |
| Input Bandwidth (-3 dB) | 400 MHz |
| Internal Reference Voltage | 2.048 V |
| Package | 32‑pin TQFP, 5 mm × 5 mm |
The device is specified from –40 °C to +85 °C.
It draws 5 µA in shutdown mode.
It provides CMOS‑compatible three‑state offset‑binary outputs.
The reference input voltage is 2.048 V.