Analog Devices Inc./Maxim Integrated MAX11620EEE+T

Overview

MAX11620EEE+T from Maxim Integrated is a 10-bit, 300ksps serial analog-to-digital converter with 8 single-ended input channels, internal 4.096V reference, on-chip 16-entry FIFO, and SPI/QSPI/MICROWIRE-compatible 3-wire interface. It operates from a +4.75V to +5.25V supply and is specified over –40°C to +85°C for industrial data acquisition and system supervision.

For engineers reviewing the MAX11620EEE+T datasheet, MAX11620EEE+T pinout, MAX11620EEE+T application, or MAX11620EEE+T equivalent, this page delivers verified specifications, real-world use context, pin-level circuit roles, and validated alternative options - all grounded in the official MAX11618–MAX11625 family datasheet (Rev 1, 9/2011).

Technical Context

The MAX11620EEE+T uses a successive-approximation register (SAR) architecture with integrated track-and-hold, supporting unipolar 0V to VREF input range. Its internal oscillator enables autonomous conversion timing in clock modes 00, 01, and 10, while clock mode 11 supports externally timed acquisitions up to 300ksps using SCLK ≤ 4.8MHz.

It features configurable scan mode, internal averaging across up to 16 samples, and AutoShutdown™ reducing supply current to ≤0.5µA in shutdown. The 16-entry FIFO decouples conversion from serial readout, enabling burst sampling without bus contention.

Key Specifications

Pinout & Package

MAX11620EEE+T is housed in a 16-pin QSOP package (5.3mm × 10.2mm, 0.65mm pitch), RoHS-compliant and lead-free (+T suffix). Pin functions are validated per Maxim's official pin configuration diagram and functional description.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 10-bit multichannel ADC applications.

Compared with ADS7953IRHBT and AD7476ARTZ-REEL7, the MAX11620EEE+T uniquely integrates 8-channel multiplexing, 16-deep FIFO, internal 4.096V reference, and four-clock-mode flexibility - delivering complete signal-chain integration in a single 16-pin QSOP, minimizing both component count and firmware development effort.

Availability

MAX11620EEE+T is available at Aetrix Electronics and suitable for industrial process monitoring, portable medical devices, environmental data logging, and automated test equipment requiring stable component supply across long production lifecycles.

Supply support for MAX11620EEE+T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.

The MAX11618–MAX11625 product line delivers low-power, multichannel ADCs with integrated FIFO, reference, and flexible timing - engineered specifically for system supervision, data acquisition, and instrumentation where reliability and integration density are critical.

FAQ

What is the maximum sampling rate of the MAX11620EEE+T?

The MAX11620EEE+T achieves a maximum sampling rate of 300ksps when using an external clock in clock mode 11. This requires SCLK ≤ 4.8MHz with 50% duty cycle. With internal clocking (modes 00–10), the effective rate is lower due to oscillator tolerance and overhead; typical sustained rate is ~250ksps in scan mode with averaging disabled. The MAX11620EEE+T datasheet specifies 300ksps as the absolute maximum under defined timing conditions.

Does the MAX11620EEE+T require an external reference voltage?

No, the MAX11620EEE+T does not require an external reference voltage. It includes a factory-trimmed internal 4.096V reference with ±0.7% initial accuracy and ±20ppm/°C temperature coefficient. The REF pin is an output that must be bypassed to GND with a 0.1µF capacitor. An external reference between 1V and VDD may be used instead, but doing so disables the internal reference and increases supply current.

How many analog input channels does the MAX11620EEE+T support?

The MAX11620EEE+T supports 8 single-ended analog input channels: AIN0 through AIN7. Pins 1–4 are dedicated to AIN0–AIN3; pin 8 serves as either CNVST (active-low conversion start) or AIN7, selected via the setup register. AIN4–AIN6 are not physically present on the 16-pin QSOP package and are marked N.C. on pins 5–7.

What package type is used for the MAX11620EEE+T?

The MAX11620EEE+T is supplied in a 16-pin QSOP (Quarter-Size Outline Package) with 0.65mm lead pitch, body dimensions of 5.3mm × 10.2mm, and RoHS-compliant +T lead-free finish. This package is distinct from the 24-pin QSOP used for the 16-channel MAX11624/MAX11625 variants and is fully compatible with standard surface-mount assembly processes.

Can the MAX11620EEE+T operate from a 3.3V supply?

No, the MAX11620EEE+T is not rated for 3.3V operation. Its specified supply voltage range is strictly +4.75V to +5.25V, as confirmed by the Ordering Information table and Electrical Characteristics section. For 2.7V–3.6V operation, the functionally identical MAX11621EEE+T (same 8-channel, 10-bit, FIFO, internal 2.5V reference) must be used instead - it shares the same pinout and package but different reference and supply specs.