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Maxim MAX1240 low-power 12-digit AD converter (ADC) solution.

May 22, 2018

The MAX1240/MAX1241 low-power, 12-bit analog-to digital converters (ADCs) are available in 8-pin packages.

The MAX1240 operates with a single +2.7V to +3.6V supply, and the MAX1241 operates with a single +2.7V to +5.25V supply. Both devices feature a 7.5μs successive-approximation ADC, a fast track/hold (1.5μs), an on-chip clock, and a high-speed, 3-wire serial interface.

Power consumption is only 37mW (VDD = 3V) at the 73ksps maximum sampling speed. A 2μA shutdown mode reduces power at slower throughput rates.

The MAX1240 has an internal 2.5V reference, while the MAX1241 requires an external reference. The MAX1241 accepts signals from 0V to VREF, and the reference input range includes the positive supply rail. An external clock accesses data from the 3-wire interface, which connects directly to standard microcontroller I/O ports. The interface is compatible with SPI™, QSPI™, and MICROWIRE™.

Excellent AC characteristics and very low power combined with ease of use and small package size make these converters ideal for remote-sensor and data acquisition applications, or for other circuits with demanding power consumption and space requirements.

The MAX1240/MAX1241 are available in 8-pin PDIP and SO packages.

http://www.hkchipsource.com/serach/MAX1240.html

MAX1240/MAX1241:

♦ Single-Supply Operation:

+2.7V to +3.6V (MAX1240)

+2.7V to +5.25V (MAX1241)

♦ 12-Bit Resolution

♦ Internal 2.5V Reference (MAX1240)

♦ Small Footprint: 8-Pin PDIP/SO Packages

♦ Low Power: 3.7μW (73ksps, MAX1240)

3mW (73ksps, MAX1241)

66μW (1ksps, MAX1241)

5μW (power-down mode)

♦ Internal Track/Hold

♦ SPI/QSPI/MICROWIRE 3-Wire Serial Interface

♦ Internal Clock

http://www.hkchipsource.com/serach/MAX1240.html

Comments (4)

Jessica Moore

This article about electronic components is well-written and informative. It covers a wide range of topics and provides valuable insights into the world of electronics. I found the explanations to be clear and easy to understand, even for someone with limited technical knowledge.

November 30, 2019
1. Adam Taylor
  
  I also enjoyed reading this article. It's great to see such clear explanations of complex topics. Looking forward to reading more from this author in the future.
  
  December 5, 2019
Ryan Ford

I completely agree with the previous reviewer. This article is an excellent resource for anyone interested in learning about electronic components. I particularly appreciated the section on common types of resistors and how to read their values. Keep up the good work!

December 5, 2020

Maxim MAX1240 low-power 12-digit AD converter (ADC) solution.

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