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Analog Devices MAX11603EEE+ — Analog & Data Acquisition

MAX11603EEE+ 8-Bit SAR ADC, 188k SPS, I²C, 16-QSOP

MPNMAX11603EEE+
End of Life

Maxim MAX11603EEE+, 8-Bit SAR ADC, 188k SPS, I²C, MUX-S/H-ADC, 4/8 Inputs, Pseudo-Differential/Single-Ended, 2.7V-3.6V, -40°C to 85°C, 16-QSOP, Tube.

$4.25Ref. price · indicative, final on quote
Packaging16-SSOP (0.154", 3.90mm Width)
RoHSROHS3 Compliant
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

MAX11603EEE+ specifications
ParameterValue
Input typePseudo-Differential, Single Ended
MountingSurface Mount
Reference typeExternal, Internal
Voltage - supply, analog2.7V ~ 3.6V
Voltage - supply, digital2.7V ~ 3.6V
I/O channels4, 8
InterfaceI²C
Operating temperature-40°C ~ 85°C
PackageTube
ArchitectureSAR
ConfigurationMUX-S/H-ADC
Number of bits8
Case16-SSOP (0.154\", 3.90mm Width)
Ratio - s (H:ADC)1:1
Number of a (D converters)1
Sampling rate (Per second)188k

Product details

Input configuration — pseudo-differential vs single-ended

In single-ended mode, all 8 inputs are referenced to a common ground. In pseudo-differential mode, the 4 inputs are each paired with a dedicated return line. The reference can be internal or external.

Package and mounting — 16-QSOP for tight boards

The MAX11603EEE+ comes in a 16-lead QSOP (3.90 mm body width), a surface-mount package that fits on dense mixed-signal boards alongside a small MCU and a few passives. The tube shipment is fine for bench builds; for production reels, check the 'T' suffix variant. The 0.154-inch (3.90 mm) width keeps the footprint compact — useful when the ADC shares a board edge with a connector bank.

Frequently asked questions

Does MAX11603EEE+ support I²C interface?

Yes. The data interface is I²C. The ADC is a bus slave; the microcontroller writes configuration bytes and reads conversion results over the same two-wire bus.

What is the resolution of MAX11603EEE+?

8 bits. Each conversion produces an 8-bit digital output, giving 256 discrete levels across the analog input range.

Is MAX11603EEE+ compatible with 3.3V logic?

Yes. The digital supply range is 2.7V to 3.6V, which covers 3.3V logic levels directly. The I²C bus also operates at 3.3V without level shifting.

What is the closest pin-compatible alternative to MAX11603EEE+ in this component family?

Within the same Maxim MAX1160x family, the 10-bit MAX11605EEE+ and 12-bit MAX11606EEE+ share the same 16-QSOP package and pinout, offering higher resolution at the same 188k SPS and I²C interface. If 8 bits are sufficient, the MAX11603EEE+ is the correct fit; stepping to 10 or 12 bits costs a few extra LSBs of noise but keeps the same board layout.