MAX1162AEUB+T - 16-Bit 200ksps SAR ADC | Analog Devices/Maxim
MPN: MAX1162AEUB+T ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $9.42 | $9.42 |
| 10 | $8.49 | $84.90 |
| 100 | $7.55 | $755.00 |
| 500 | $6.78 | $3,390.00 |
| 1,000 | $5.92 | $5,920.00 |
MAX1162AEUB+T Overview
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that samples a continuous analog voltage and converts it into a discrete digital code word. SAR (successive-approximation register) ADCs in particular use an iterative binary-search algorithm against an internal DAC, combining low latency with deterministic conversion time, making them well suited to multiplexed data-acquisition channels and control loops. The MAX1162AEUB+T fits within the broader hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor.
Key features include an internal track-and-hold with 4MHz input bandwidth, an adjustable logic interface from +2.7V to +5.25V for easy connection to modern microcontrollers, hardware-software shutdown control, and an external reference input that lets the user trade full-scale range for noise. The 10-pin uMAX (10-uMAX/uSOP) package is compact enough for portable designs while exposing the SAR core's high-speed serial interface.
Architecturally the MAX1162 uses a charge-redistribution SAR core with dedicated input T/H, allowing accurate acquisition of full-scale transitions at full 200ksps throughput. Serial data is clocked out LSB-first under user control, simplifying connection to SPI/QSPITM/MICROWIRE-compatible controllers or DSP serial ports. Operating temperature range spans -40C to +85C industrial grade.
Typical applications include portable instrumentation and battery-powered data loggers, industrial process-control front ends, pen-tablet digitizers and touch-screen A/D channels, and medical instrument signal conditioning. The combination of low active power, automatic power-down, and fast wakeup makes it especially attractive for battery-powered data-acquisition systems that spend most of their time idle between conversions.
A key design consideration is decoupling: place a 0.1uF ceramic bypass capacitor as close as possible to the AVDD pin and a bulk tantalum/ceramic reservoir on the logic supply side. Choose an external reference (such as the MAX6126) sized to the desired full-scale input and remember that conversion noise and INL will directly reflect reference quality.
This page synthesizes distributor pricing, drop-in same-brand and cross-brand alternatives, and practical design guidance not found in the manufacturer datasheet, helping engineers select, source, and lay out the MAX1162AEUB+T with confidence.
Drop-in alternatives for MAX1162AEUB+T — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with MAX1162AEUB+T (same form factor and footprint) — differing in Architecture, Number of Input Channels, Operating Temperature Range, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
MAX1162BEUB+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX1162CEUB+
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX1162DEUB+
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
MAX1162AEUB+
✅ Drop-In📋 Reference alternative (not in catalog)
MAX1162ACUB+T
✅ Drop-In✓ In Stock
$5.74 / Unit
View Datasheet →MAX1162AEUB+T Maximum Ratings & Electrical Characteristics
| Resolution | 16 bits |
| Architecture | SAR (Successive Approximation) |
| Number of Input Channels | 1 |
| Sampling Rate | 200 ksps |
| Supply Voltage | +5 V single supply |
| Adjustable Logic Level | +2.7 V to +5.25 V |
| Input Voltage Range | 0 V to VREF |
| Input Bandwidth (T/H) | 4 MHz (small-signal) |
| Internal Track/Hold | Yes |
| Shutdown Current | 10 uA |
| Wakeup Time from Shutdown | 1.1 us |
| Missing Codes | None (16-bit, guaranteed) |
| Package | 10-pin uMAX/uSOP |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40C to +85C (industrial) |
| External Reference Input | Yes |
| Serial Interface | SPI/QSPI/MICROWIRE-compatible |
| RoHS Status | Compliant |
MAX1162AEUB+T Pin Configuration
| Pin 1 | SHDN — Hardware shutdown input (active low) |
| Pin 2 | CONVST — Conversion start input |
| Pin 3 | CS — Chip select (active low) for serial interface |
| Pin 4 | SCLK — Serial clock input |
| Pin 5 | DOUT — Serial data output (LSB-first) |
| Pin 6 | GND — Ground (digital and analog common) |
| Pin 7 | REF — External reference voltage input; sets ADC full-scale |
| Pin 8 | AIN — Analog input (0V to VREF) |
| Pin 9 | AVDD — Analog +5V supply |
| Pin 10 | DVDD — Digital logic supply (+2.7V to +5.25V) |
Typical Applications
MAX1162AEUB+T is suitable for 7 applications: Portable Battery-Powered Data Logger, Industrial Process Control Front End, Pen-Tablet Digitizer and Touch-Screen A/D Channels, Medical Instrument Signal Conditioning, Precision Weigh Scale Front End, Automotive Sensor Interface Module, Audio Test and Measurement Equipment.
Portable Battery-Powered Data Logger
The MAX1162AEUB+T's 10uA shutdown current, 1.1us wakeup time, and 200ksps throughput make it a strong fit for portable battery-powered data loggers. The ADC sits dormant between periodic samples, waking briefly to digitize sensor data and returning to deep shutdown to extend battery life - often by an order of magnitude over always-on ADCs. The 16-bit no-missing-codes performance preserves dynamic range required for environmental sensing such as temperature, pressure, or strain gauges where signal amplitude varies by orders of magnitude across measurement intervals.
Recommended
Industrial Process Control Front End
In industrial process-control front ends the MAX1162AEUB+T digitizes 4-20mA-derived or thermocouple-conditioned analog signals with 16-bit resolution. Its SPI/QSPI/MICROWIRE-compatible serial interface connects directly to most PLC and microcontroller serial ports. The 0-5V single-supply operation and -40C to +85C industrial temperature range suit factory-floor environments. Using the MAX1162AEUB+T as the input stage of a multi-loop controller delivers deterministic SAR conversion timing that simplifies loop synchronization versus delta-sigma alternatives.
Recommended
Pen-Tablet Digitizer and Touch-Screen A/D Channels
The MAX1162AEUB+T's 200ksps sampling rate and 4MHz input bandwidth suit the high-speed tracking demands of pen-tablet and resistive touch-screen digitizers, where stylus position must be sampled rapidly as the user draws. The internal track-and-hold captures fast transient signals at full scale without slew-induced distortion. The 10-pin uMAX package keeps the digitizer board compact, important in thin-and-light tablet form factors where PCB area is at a premium.
Recommended
Medical Instrument Signal Conditioning
Patient-monitoring and portable medical instruments benefit from the MAX1162AEUB+T's combination of 16-bit resolution, low active power, and fast shutdown wakeup. The part digitizes physiological signals such as ECG, SpO2 photodiode currents, or body-temperature thermistor bridges with sufficient dynamic range for clinical accuracy. The 10uA shutdown current helps medical wearables meet battery-life targets while 16-bit no-missing-codes preserves diagnostic signal fidelity mandated by IEC 60601-family medical device performance standards.
Recommended
Precision Weigh Scale Front End
Weigh scales and force-sensing systems use the MAX1162AEUB+T to digitize load-cell bridge outputs with 16-bit resolution, sufficient for commercial-grade scales with 0.1% accuracy after calibration. The external reference input lets designers choose a low-drift reference such as the MAX6126 to minimize temperature-induced gain drift in weighing applications. The deterministic SAR conversion simplifies synchronous sampling of the bridge excitation cycle, eliminating 50/60Hz mains-line interference common in PWM-driven load cells.
Recommended
Automotive Sensor Interface Module
Although not AEC-Q100 qualified, the MAX1162AEUB+T finds use in non-safety automotive sensor interfaces such as cabin HVAC sensors, occupant-detection modules, and infotainment analog inputs where its 16-bit resolution aids temperature, humidity, and position sensing. The -40C to +85C operating range covers most cabin environments. Designers must add external protection (TVS diodes, RC filters) for under-hood deployment; otherwise the part drops directly into cabin-area sensor modules with the SPI bus feeding a body-controller MCU.
Recommended
Audio Test and Measurement Equipment
Audio test and measurement applications use the MAX1162AEUB+T to digitize audio-bandwidth analog signals for THD+N analysis or production-line audio tester channels. The 200ksps sampling rate comfortably covers the 20Hz-20kHz audio band at multiple times oversampling. The 16-bit dynamic range yields approximately 96dB SNR, sufficient for consumer-audio testing. Combined with an audio-bandwidth low-noise op-amp front end the MAX1162AEUB+T builds compact, automated-test-equipment (ATE) audio analyzers.
Recommended
Recommended Products Summary
Engineering reference data for MAX1162AEUB+T — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | MAX1162BEUB+ | MAX1162CEUB+ | MAX1162DEUB+ | MAX1162AEUB+ | MAX1162ACUB+T |
|---|---|---|---|---|---|---|
| Brand | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated |
| Package | 10-pin uMAX (10-uSOP) | 10-pin uMAX - same | 10-pin uMAX - same | 10-pin uMAX - same | 10-pin uMAX - same | 10-pin uMAX - same |
| Resolution | 16 bits, no missing codes | 16 bits, no missing codes | 16 bits | 16 bits | 16 bits, no missing codes | 16 bits |
| Supply Voltage (Analog) | +5 V | +5 V | +5 V | +5 V | +5 V | +5 V |
| Logic Supply | +2.7 V to +5.25 V | +2.7 V to +5.25 V | +2.7 V to +5.25 V | +2.7 V to +5.25 V | +2.7 V to +5.25 V | +2.7 V to +5.25 V |
| Shutdown Current | 10 uA | 10 uA | 10 uA | 10 uA | 10 uA | 10 uA |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
| Architecture | SAR (single channel) | SAR, 1 ch | SAR, 1 ch | SAR, 1 ch | SAR, 1 ch | SAR, 1 ch |
Key Differentiators
- 10uA automatic power-down with 1.1us wakeup (vs Generic 16-bit ADCs without auto-shutdown)
- Adjustable logic interface +2.7V to +5.25V (vs Fixed 5V-logic-only ADCs)
- Compact 10-pin uMAX package (vs Larger 16-pin SOIC 16-bit ADCs)
Design Notes
Decouple AVDD and DVDD independently with a 0.1uF ceramic capacitor placed as close to the supply pins as possible (within 2-3mm trace length) to suppress high-frequency ADC switching noise. Add a 10uF tantalum or ceramic bulk capacitor on AVDD for low-frequency noise rejection. The MAX1162 datasheet's typical application circuit is the authoritative reference; deviations degrade SNR and may inject reference-frequency ripple into conversion results.
Route analog and digital grounds as separate traces that join only at the part's GND pin (single-point grounding), keeping digital return currents away from sensitive analog input and reference traces. Place the input coupling network close to the AIN pin and avoid running AIN parallel to digital clock lines to minimize coupled digital noise into the analog front end. Keep REF bypass capacitors within 5mm of the REF pin.
Do not exceed the absolute-maximum DVDD rating of +5.25V; verify that the microcontroller's I/O voltage is compatible. The SHDN pin is active-low; leaving it floating can draw extra current - always drive it via the MCU or pull-up. Use a stable, low-noise reference because conversion noise and INL scale directly with reference quality - low-cost Zener references often degrade 16-bit performance.
When clocking the SPI/QSPI bus at high speed to keep up with 200ksps throughput, add a 20-100 ohm series resistor at DOUT to damp overshoot and ringing on long PCB traces. Match the SPI clock polarity and phase to the MAX1162's mode-0/2-compatible timing diagram in the datasheet. If the host MCU uses a different logic level, ensure the +DVDD supply matches the bus voltage exactly.
Compliance Information
RoHS and lead-free compliance confirmed via Maxim/Analog Devices product page. AEC-Q100 qualification not stated - do not use MAX1162AEUB+T in automotive safety applications without supplemental qualification. REACH, halogen-free, and conflict-minerals declarations were not surfaced in the verified web data and are marked unknown.
