The MAX11600EKA+T is the 4-channel member of Maxim's MAX11600-MAX11605 family of low-power, multichannel 8-bit ADCs with a 2-wire I²C-compatible serial interface. It integrates a track/hold, voltage reference and clock, accepting 4 single-ended or 2 pseudo-differential inputs, and converts at up to 188ksps. The EKA suffix denotes the 8-pin SOT23 package and the -40°C to +85°C range; the family extends to 8- and 12-channel parts in 16-pin QSOP.

The high-speed I²C interface supports 400kHz fast mode and 1.7MHz high-speed mode, while an internal FIFO with channel-scan mode lets the host read multiple channels in one efficient burst. The MAX11600 carries an internal 4.096V reference; inputs are software-configurable as unipolar or bipolar, and an external reference (1V to VDD) can be applied through the AIN3/REF pin when needed.

Power is minimised for portable use: just 350µA at 188ksps, dropping to 110µA at 75ksps, 8µA at 10ksps and 1µA in software power-down, with auto-shutdown between conversions. Running on a single 2.7V-3.6V supply in an 8-pin SOT23, the MAX11600EKA+T fits the tightest handheld, medical and battery-powered designs.

Note: Refer to the official Maxim MAX11600-MAX11605 datasheet for full electrical parameters and curves. Subject to change without notice; verify all parameters before final design.

The MAX11600EKA+T is supplied in the 8-pin SOT23 package (Maxim package code K8CN+2, outline 21-0078), indicated by the EKA suffix. The tiny SOT23 footprint, combined with the 2-wire I²C bus, makes it one of the most space-efficient multichannel ADCs available; the 8- and 12-channel siblings move to a 16-pin QSOP.

The "+" suffix indicates lead-free, RoHS-compliant finish and the "T" suffix tape-and-reel packing. Standard 8-lead SOT23 land patterns and reflow profiles apply; bypass VDD close to the device and keep the I²C lines short with appropriate pull-ups.

The MAX11600 uses an 8-pin SOT23 pinout (top view, pin 1 marked):

• Pin 1 - AIN0 / Pin 2 - AIN1 / Pin 3 - AIN2: Analog input channels 0 to 2.
• Pin 4 - AIN3/REF: Analog input channel 3, or external reference input (this pin is shared, so an external reference uses the AIN3 channel).
• Pin 5 - SCL: I²C serial clock input.
• Pin 6 - SDA: I²C serial data input/output.
• Pin 7 - GND: Ground.
• Pin 8 - VDD: Positive supply, 2.7V to 3.6V (also serves as internal-reference supply).

Add I²C pull-up resistors on SCL and SDA, and bypass VDD with a ceramic capacitor close to the device. Confirm the exact pin assignment against the datasheet image below before layout.

The following parts are listed for reference. Verify channels, reference, interface and package before substituting.

Maxim Integrated, now part of Analog Devices (NASDAQ: ADI), is a leading supplier of analog and mixed-signal semiconductors, recognized for low-power data converters and space-saving packaging. The MAX11600-MAX11605 I²C ADC family is widely used for compact multichannel acquisition in portable, medical and industrial designs.

Maxim/ADI provides complete datasheets, application notes and long-term supply, with authorized distribution and technical support across China for both prototype and volume programs.