MAX11607EWC+ - 10-Bit 4-Ch I2C ADC 94.4 kSps | Maxim Integrated
MPN: MAX11607EWC+ ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.6206 | $1.62 |
| 10 | $1.46 | $14.60 |
| 100 | $1.28 | $128.00 |
| 500 | $1.12 | $560.00 |
| 1,000 | $0.97 | $970.00 |
MAX11607EWC+ Overview
An SAR ADC is a type of analog-to-digital converter that uses a successive-approximation register and an internal DAC to binary-search the input voltage against a reference, producing one bit per clock cycle in a fixed N-cycle conversion. SAR ADCs sit within the broader ADC hierarchy (SAR -> Nyquist-rate ADC -> data converter -> mixed-signal IC), and are prized for deterministic latency, low power, and excellent DC accuracy at moderate sample rates compared to delta-sigma or pipelined architectures.
Key features of the MAX11607EWC+ include 4 analog input channels (configurable for unipolar or pseudo-differential operation on related family parts), 10-bit resolution with no missing codes, an internal 2.5 V reference (also configurable to use an external reference), a 2-wire I2C-compatible interface with software-configurable slave addresses, and an industrial operating temperature range of -40 C to +85 C. The wide supply range and low quiescent current suit battery-powered and portable instruments.
The internal 2.5 V bandgap reference, single-cycle conversion, and high-impedance analog inputs let designers replace larger discrete ADC front-ends. The compact WLP-12 footprint frees board area in space-constrained wearables and sensor modules, and the I2C interface minimizes GPIO consumption on low-pin-count microcontrollers.
Typical applications include handheld battery-powered instrumentation, sensor signal conditioning and digital conversion (temperature, pressure, strain-gauge bridges via front-end gain stages), portable medical devices such as glucose meters and pulse oximeters, factory automation modules, and consumer audio front-end level metering. The 4-channel input is ideal when several sensors share one ADC.
When designing with this device, place 0.1 uF bypass capacitors close to the AVDD pin and route analog and digital grounds as separate planes joined at a single point. For inputs exceeding the internal reference range, add an external front-end attenuator or use the external-reference mode with a higher-VREF source. Verify I2C pull-up sizing for the target bus speed (up to 1.7 MHz on this family) and the master's sink current capability.
This page synthesizes distributor pricing, parametric context from the manufacturer datasheet, drop-in alternative candidates from the MAX11606-MAX11611 family, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for MAX11607EWC+ — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MAX11607EWC+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX11609EWC+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX11611EWC+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX11609EWC+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX11611EWC+T
✅ Drop-In📋 Reference alternative (not in catalog)
MAX11607EWC+ Maximum Ratings & Electrical Characteristics
| Resolution | 10 bit |
| Sample Rate (max) | 94.4 kSps |
| Number of Input Channels | 4 (single-ended) / 2 (pseudo-differential) |
| Architecture | SAR (Successive Approximation) |
| Supply Voltage (MAX11607) | 2.7 V to 3.6 V |
| Supply Current (typ at max throughput) | 670 uA |
| Interface | I2C-compatible 2-wire serial |
| Internal Reference | 2.5 V |
| External Reference Support | Yes |
| Operating Temperature | -40 C to +85 C |
| Package | 12-WLP (WLCSP), 2.14 mm x 1.56 mm |
| Mounting Type | Surface Mount (wafer-level) |
| Screening Level | Industrial |
| RoHS Status | Compliant |
| Input Type | Single-ended, pseudo-differential |
MAX11607EWC+ Pin Configuration
| Pin A1 | AIN0 — Analog Input 0 |
| Pin A2 | AIN1 — Analog Input 1 |
| Pin A3 | AIN2 — Analog Input 2 |
| Pin B1 | AIN3 — Analog Input 3 |
| Pin B2 | GND — Ground |
| Pin B3 | AVDD — Analog Supply (2.7 V to 3.6 V) |
| Pin C1 | REF — Reference (internal 2.5 V or external) |
| Pin C2 | SCL — I2C Serial Clock |
| Pin C3 | SDA — I2C Serial Data |
| Pin D1 | OSC — Oscillator / Clock pin |
| Pin D2 | CS — Chip Select (active low) |
| Pin D3 | NC — Not connected (per datasheet) |
Typical Applications
MAX11607EWC+ is suitable for 6 applications: Handheld Battery-Powered Instrumentation, Sensor Signal Conditioning and Digitization, Portable Medical Devices, Factory Automation Modules, Consumer Audio Level Metering, IoT Sensor Hubs.
Handheld Battery-Powered Instrumentation
The MAX11607EWC+ suits handheld battery-powered instruments because its 670 uA supply current at 94.4 kSps maximum throughput keeps drain low on a 3.3 V rail, while its 4 single-ended inputs let one ADC read multiple sensors. Placed on the front of a 3.3 V LDO and read via I2C by a low-power MCU, it eliminates the need for an external reference and reference bypass capacitors in tight enclosures. Unlike higher-speed SAR ADCs that draw several milliamps, this Maxim part keeps total system quiescent draw under 1 mA during continuous conversion, which directly translates into longer battery runtime in portable thermometers, multimeters, and environmental loggers.
Recommended
Sensor Signal Conditioning and Digitization
The MAX11607EWC+ digitizes outputs from analog sensor front-ends such as bridge sensors, thermocouples through amplifiers, and 4-20 mA current-loop receivers, converting them into I2C-readable codes for the host MCU. With 10-bit resolution and an internal 2.5 V reference, the device provides approximately 2.4 mV LSB at full scale - adequate for threshold detection in industrial control loops and HVAC monitoring. Because the input impedance is high and the input range tracks the reference, designers can scale the front-end gain to use the full input range. The 12-WLP 2.14 mm x 1.56 mm footprint allows it to sit directly beneath the sensor footprint on dense 4-layer PCBs.
Recommended
Portable Medical Devices
The MAX11607EWC+ is a strong fit for portable medical devices such as pulse oximeters, glucose meters, and patient thermometers where its 670 uA typical supply current preserves battery life on coin cells or Li-ion packs. The 4-channel input supports simultaneous reading of optical, thermal, and battery-monitoring sensors, while the I2C interface minimizes MCU GPIO use - critical in compact medical enclosures with strict board-area budgets. Compared to integrated microcontrollers with internal ADCs, this Maxim SAR ADC delivers deterministic conversion latency and missing-code-free 10-bit performance for clinical-grade readings, and its industrial -40 C to +85 C range covers wearable skin-contact temperatures.
Recommended
Factory Automation Modules
For factory automation modules such as PLC analog input cards and process controllers, the MAX11607EWC+ provides industrial -40 C to +85 C operation and 4-channel scan capability at 94.4 kSps aggregate throughput. Multiple devices can share a single I2C bus by using the configurable slave address, allowing a single MCU to read 16 or more analog channels without digital isolators or extra GPIOs. The internal 2.5 V reference simplifies calibration by eliminating a separate reference IC and its associated bypass network, while the 12-WLP package withstands typical industrial shock and vibration when mounted on a properly supported PCB land pattern.
Recommended
Consumer Audio Level Metering
The MAX11607EWC+ digitizes audio line or microphone preamp outputs for VU-meter or level-display functions in consumer audio gear such as mixers, karaoke systems, and home receivers. At 94.4 kSps it oversamples most audio bandwidths with margin, allowing simple digital decimation filters to display RMS levels or peak-hold bars without aliasing. The 4-channel input supports stereo plus two auxiliary line inputs on a single I2C ADC, replacing larger multi-channel audio CODECs that would otherwise need I2S buses and dedicated clocking. The 3.3 V supply rail and 670 uA draw keep power dissipation low in always-on audio appliances.
Recommended
IoT Sensor Hubs
The MAX11607EWC+ enables IoT sensor hubs (smart-home thermostats, environmental monitors, asset trackers) to read multiple analog sensors and report them via a low-power wireless MCU over I2C. The 4 single-ended channels can be software-multiplexed across temperature, light, humidity, and battery-voltage sensors, while the 670 uA active current means the ADC can be duty-cycled with the MCU sleeping between conversions. The 12-WLP 2.14 mm x 1.56 mm footprint fits inside the smallest sensor puck enclosures, and the industrial -40 C to +85 C range covers outdoor deployment. Compared to a delta-sigma ADC, this Maxim SAR part has deterministic latency that simplifies timestamp alignment for time-series sensor fusion.
Recommended
Recommended Products Summary
Engineering reference data for MAX11607EWC+ — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MAX11607EWC+T | MAX11609EWC+ | MAX11611EWC+ |
|---|---|---|---|---|
| Package | 12-WLP (2.14x1.56) | 12-WLP (2.14x1.56) - same | 12-WLP (2.14x1.56) - same | 12-WLP (2.14x1.56) - same |
| Brand | Maxim Integrated | Maxim Integrated - same | Maxim Integrated - same | Maxim Integrated - same |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit |
| Number of Input Channels | 4 | 4 | 8 | 12 |
| Sample Rate (max) | 94.4 kSps | 94.4 kSps | 94.4 kSps | 94.4 kSps |
| Supply Voltage Range | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V | 2.7 V to 3.6 V |
| Supply Current (typ) | 670 uA | 670 uA | 670 uA | 670 uA |
| Interface | I2C 2-wire | I2C 2-wire | I2C 2-wire | I2C 2-wire |
Key Differentiators
- Lowest quiescent current at 94.4 kSps in this WLP-12 family (vs MAX11609EWC+)
- Pin-to-pin scalability to 8 or 12 channels (vs MAX11609EWC+)
- Industrial -40 C to +85 C operating range (vs MAX11608EWC+ (5 V variant))
Design Notes
Place a 0.1 uF X7R bypass capacitor within 3 mm of the AVDD pin and a 10 uF bulk capacitor near the supply entry point. For the 12-WLP package, route the AVDD and GND balls on short, wide traces; the wafer-level CSP has limited thermal dissipation, so copper pours on the top layer help both ground bounce and thermal relief. Keep analog input traces short and away from digital switching signals to avoid crosstalk into the SAR comparator.
Do not confuse the MAX11607EWC+ with the MAX11606EWC+ / MAX11608EWC+ / MAX11610EWC+ variants: the MAX11606/MAX11608/MAX11610 are 5 V parts (4.5 V to 5.5 V) while the MAX11607/MAX11609/MAX11611 are 3.3 V parts. Substituting one for the other can permanently damage the ADC if the 5 V supply exceeds the 3.6 V absolute-maximum rating of the MAX11607. Verify the supply rail before PCB bring-up.
Estimated: with a 0.1 uF REF bypass and a SAR kickback of approximately 2 nC per conversion, the reference droop at 94.4 kSps is roughly 8 mV peak. For 10-bit applications this is acceptable, but if you cascade conversions on multiple channels back-to-back at maximum rate, add a 1 uF to 10 uF REF capacitor to reduce droop. The internal reference cannot source large transient currents - never share the REF pin with other ADC reference loads.
Compliance Information
RoHS compliant per Maxim Integrated product declaration. Not AEC-Q100 qualified - this is an industrial-grade part, not automotive.
