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Analog Devices Inc./Maxim Integrated MAX1162ACUB+
- Part No.:
- MAX1162ACUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX1162ACUB+.pdf
- Description:
- IC ADC 16BIT SAR 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:1,425
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Product details
Overview
MAX1162ACUB+ from Maxim Integrated is a 16-bit successive-approximation analog-to-digital converter (ADC) with SPI/QSPI/MICROWIRE-compatible serial interface, 200ksps maximum sampling rate, ±2.5 LSB INL (–40°C to +85°C), and 10µA shutdown current. It operates from a single +5V analog supply (AVDD = 4.75V to 5.25V) with independent +2.7V to +5.25V digital supply (DVDD), enabling direct interfacing to mixed-voltage microcontrollers in portable data-acquisition systems.
For engineers reviewing the MAX1162ACUB+ datasheet, MAX1162ACUB+ pinout, MAX1162ACUB+ application, or MAX1162ACUB+ equivalent, this page delivers verified technical context, real-world timing behavior (1.1µs acquisition, 240µs conversion time), power-performance tradeoffs across sampling rates (2.75mA at 200ksps, 140µA at 10ksps), and precise interface timing for SPI/QSPI firmware integration.
Technical Context
The MAX1162ACUB+ implements a capacitive SAR architecture with integrated track-and-hold, supporting unipolar input range of 0 to VREF (3.8V to AVDD) and 4MHz small-signal input bandwidth. Its internal 32pF DAC array and 800Ω input resistance define acquisition dynamics, requiring ≤1kΩ source impedance for full 16-bit accuracy without extended settling.
Control is fully synchronous via three-wire serial interface: CS initiates conversion on falling edge, SCLK (up to 4.8MHz, 40–60% duty cycle) clocks out 24-bit frame (eight leading zeros + 16-bit MSB-first result), and DOUT transitions on SCLK falling edge with 50ns valid delay. AutoShutdown™ activates on CS high, reducing total supply current to 0.1µA typical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit, no missing codes - guarantees monotonicity and full-scale linearity for precision measurement applications. |
| Sampling Rate | 200ksps max - supports real-time capture of signals up to 10kHz full-linear bandwidth (SINAD > 86dB). |
| INL (–40°C to +85°C) | ±2.5 LSB - defines end-point linearity error after gain/offset calibration; enables <0.004% FSR absolute accuracy with external reference. |
| Power Consumption | 2.75mA at 200ksps (AVDD = DVDD = +5V) - balances speed and battery life in portable instrumentation. |
| Shutdown Current | 10µA typical - allows rapid entry/exit from ultra-low-power state without reset or reinitialization overhead. |
| SPI Interface Speed | Up to 4.8MHz SCLK - enables sub-12µs readout latency per conversion, critical for closed-loop control timing. |
| Input Bandwidth | 4MHz - permits undersampling of RF or transient events while maintaining signal fidelity within Nyquist zone. |
Pinout & Package
MAX1162ACUB+ is housed in a lead(Pb)-free, RoHS-compliant 10-pin µMAX® package (3mm × 3mm, 0.5mm pitch), optimized for space-constrained PCB layouts in portable equipment. Thermal pad exposed on bottom enhances power dissipation in high-throughput operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 REF | External reference voltage input | Defines full-scale analog input range (0 to VREF); requires 4.7µF bypass to AGND for stable 16-bit conversion accuracy. |
| 2 AVDD | Analog +5V supply | Must be decoupled with 0.1µF capacitor to AGND (pin 3); powers internal T/H and SAR core. |
| 3, 9 AGND | Analog ground return | Star grounding point for analog section; pins 3 and 9 must be connected externally to minimize noise coupling. |
| 4 CS | Active-low chip-select | Falling edge initiates conversion; high state forces AutoShutdown™ (10µA current) and places DOUT in high-Z. |
| 5 SCLK | Serial clock input | Drives conversion timing and data output; 4.8MHz max frequency with 65ns min pulse width. |
| 6 DOUT | Serial data output | MSB-first 24-bit frame (8 zeros + 16 data bits); transitions on SCLK falling edge; high-Z when CS = high. |
| 7 DGND | Digital ground return | Isolated from AGND except at system-level star point; prevents digital switching noise from corrupting analog sampling. |
| 8 DVDD | Digital +2.7V to +5.25V supply | Independent rail allows interfacing with 3.3V or 5V logic; bypassed with 0.1µF to DGND. |
| 10 AIN | Analog input | Unipolar single-ended input; accepts 0 to VREF; internal protection diodes clamp to AVDD/AGND (–0.3V to AVDD + 0.3V). |
Key Features
| Feature | Design Value |
|---|---|
| 16-bit resolution with no missing codes | Ensures monotonic transfer function and eliminates code gaps in high-precision sensor digitization (e.g., thermocouples, strain gauges). |
| Adjustable digital logic level (2.7V–5.25V) | Eliminates level-shifting components when interfacing with mixed-voltage SoCs or low-power MCUs. |
| Internal track-and-hold with 1.1µs acquisition | Reduces external buffer requirements; supports multiplexed inputs with minimal channel-to-channel settling delay. |
| SPI/QSPI/MICROWIRE compatibility (CPOL=0, CPHA=0) | Enables plug-and-play integration with standard MCU peripheral drivers without custom bit-banging firmware. |
| 10µA shutdown current | Extends battery life in intermittent-sampling applications (e.g., wireless sensor nodes) without sacrificing wake-up latency. |
Applications
| Motor Control | Industrial I/O Modules |
|---|---|
Use Scenario: Real-time current sensing and position feedback in BLDC motor drives using shunt resistors or Hall-effect sensors. IC Role / Device Role / Timing Role: High-speed ADC capturing analog feedback at 200ksps with deterministic 240µs conversion latency for PWM loop synchronization. Use Value: Enables 16-bit current resolution (<1mΩ shunt sense) and sub-µs timing alignment between sampling and gate drive updates. |
Use Scenario: Modular analog input cards in PLC backplanes acquiring temperature, pressure, and flow sensor signals. IC Role / Device Role / Timing Role: Precision front-end digitizer with programmable gain amplifier interface and isolated SPI communication to host controller. Use Value: Delivers ±2.5 LSB INL over –40°C to +85°C, meeting industrial grade linearity requirements without per-unit calibration. |
| Data-Acquisition Systems | Portable Equipment |
Use Scenario: Benchtop multimeters and oscilloscope front-ends requiring high dynamic range and low THD (–90dB). IC Role / Device Role / Timing Role: Primary digitizer with 89.5dB SINAD and 92dB SFDR, driven by low-noise op-amp buffer and precision reference. Use Value: Achieves 15.5 effective number of bits (ENOB) at 1kHz, supporting 6½-digit measurement accuracy. |
Use Scenario: Handheld gas analyzers and portable ECG monitors powered by coin-cell or Li-ion batteries. IC Role / Device Role / Timing Role: Low-power ADC operating in burst mode: 200ksps during active measurement, auto-shutdown between samples. Use Value: Reduces average current to <100µA at 10ksps sampling, extending battery runtime to >1 year in duty-cycled operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8325IPW | 16-bit, 100ksps, SPI interface, 2.7V–5.5V supply, ±1 LSB INL (max), no AutoShutdown™ | Lacks 200ksps speed and 10µA shutdown; requires external power management for low-duty-cycle use. | Select when lower cost and tighter INL tolerance are prioritized over speed and ultra-low-power shutdown. |
| AD7682BCPZ | 16-bit, 250ksps, pseudo-differential input, 2.3V–5.5V supply, ±1.5 LSB INL, 350nA shutdown | Higher speed and lower shutdown current, but requires differential input configuration and lacks adjustable DVDD logic level. | Select when higher throughput and lowest possible shutdown current are required, and differential signaling is acceptable. |
Compared with ADS8325IPW and AD7682BCPZ, the MAX1162ACUB+ uniquely combines 200ksps sampling, 10µA shutdown, and flexible 2.7V–5.25V DVDD logic compatibility-making it optimal for battery-powered, mixed-voltage embedded systems where interface simplicity and power-state agility are critical.
Availability
MAX1162ACUB+ is available at Aetrix Electronics and suitable for motor control, industrial I/O modules, and portable data-acquisition systems requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX1162ACUB+ 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 MAX1162ACUB+ belongs to Maxim's high-resolution SAR ADC product line, engineered specifically for low-power, high-accuracy data acquisition in space- and energy-constrained environments.
FAQ
What is the guaranteed INL specification for MAX1162ACUB+ over its full operating temperature range?
The MAX1162ACUB+ has a guaranteed integral nonlinearity (INL) of ±2.5 LSB over the –40°C to +85°C temperature range, measured using the endpoint method after offset and gain calibration. This specification ensures consistent 16-bit monotonic performance across industrial ambient conditions without requiring per-unit trimming.
Does MAX1162ACUB+ support true differential input, or is it single-ended only?
The MAX1162ACUB+ accepts only single-ended unipolar analog inputs (0 to VREF) on the AIN pin. It does not support true differential or bipolar input configurations. For differential applications, an external instrumentation amplifier must condition the signal before routing to AIN.
How does the AutoShutdown™ feature of MAX1162ACUB+ operate, and what is its recovery time?
AutoShutdown™ activates when CS is driven high, reducing total supply current to 10µA typical. Recovery is immediate: a falling edge on CS initiates acquisition, and the device completes conversion in 240µs (tCONV) at 200ksps - no wake-up delay or initialization sequence is required.
Can MAX1162ACUB+ interface directly with a 3.3V microcontroller without level shifters?
Yes - the MAX1162ACUB+ supports DVDD from +2.7V to +5.25V, and its digital inputs (CS, SCLK) accept VIH ≥ 0.7×DVDD and VIL ≤ 0.3×DVDD. With DVDD = 3.3V, it reliably interfaces with standard 3.3V CMOS logic without external level translation.
What reference voltage range is supported by MAX1162ACUB+, and what bypass capacitance is required?
The MAX1162ACUB+ accepts VREF from +3.8V to AVDD (max +5.25V). A minimum 4.7µF low-ESR capacitor must be placed between REF and AGND (pin 3). For best noise performance, add a parallel 0.1µF ceramic capacitor if the 4.7µF capacitor is not low-ESR.
MAX1162ACUB+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 10-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1162ACUB+ FAQ
1.How can I place an order for MAX1162ACUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1162ACUB+ on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1162ACUB+ reliable?
The price and inventory of MAX1162ACUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1162ACUB+ is usually 5 days.
3.What payment methods are accepted for MAX1162ACUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1162ACUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1162ACUB+?
MAX1162ACUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1162ACUB+ order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1162ACUB+?
For technical support, including MAX1162ACUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1162ACUB+ requirements.
6.How does Aetrix verify that MAX1162ACUB+ is sourced from the original manufacturer or authorized distributors?
All MAX1162ACUB+ products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1162ACUB+ meets industry standards.
7.What is the process for return or replacement of MAX1162ACUB+?
All MAX1162ACUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1162ACUB+, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1162ACUB+ part is unused and in its original packaging.
Return procedure for MAX1162ACUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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