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Analog Devices Inc./Maxim Integrated MAX11163EUB+
- Part No.:
- MAX11163EUB+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX11163EUB+.pdf
- Description:
- IC ADC 16BIT SAR 10UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,328
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Product details
Overview
The MAX11163EUB+ from Maxim Integrated is a 16-bit, 250ksps pseudo-differential successive approximation register (SAR) analog-to-digital converter with unipolar 0V to +5V input range, ±0.5 LSB INL, 93.2dB SNR, and SPI-compatible serial interface - designed for high-precision industrial data acquisition systems requiring low-latency sampling without pipeline delay.
For engineers reviewing the MAX11163EUB+ datasheet, MAX11163EUB+ pinout, MAX11163EUB+ application, or MAX11163EUB+ equivalent, this page delivers verified electrical specifications, validated µMAX package layout guidance, confirmed daisy-chain timing behavior, and real-world signal chain integration constraints for medical instrumentation and automatic test equipment.
Technical Context
The MAX11163EUB+ implements a true pseudo-differential track-and-hold architecture with 1µs acquisition time and no pipeline latency, enabling accurate multiplexed channel sampling at full 250ksps throughput. Its internal sampling capacitor (40pF) and overvoltage clamps (±20mA) support robust interfacing with remote sensors and external op-amp drivers like the MAX9632.
It supports dual-supply operation: 4.75V–5.25V analog supply (VDD) and 2.3V–5.25V digital interface supply (OVDD), with independent shutdown control reducing total current to <10µA. The SPI/QSPI/MICROWIRE-compatible interface offers both CS-mode and daisy-chain configurations, with optional busy-indicator signaling for deterministic system synchronization.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution & Linearity | 16-bit with guaranteed no-missing-codes; ±0.5 LSB INL (typ) ensures ≤0.0076% full-scale error across temperature. |
| AC Performance | 93.2dB SNR and –105dB THD at 10kHz enables >15.2 ENOB for precision spectral analysis in narrowband receivers. |
| Throughput & Timing | 250ksps sustained rate with 2.6µs conversion time and 1µs acquisition window - eliminates pipeline delay for real-time control loops. |
| Power Consumption | 19mW at 250ksps (VDD = 5V, OVDD = 3.3V); 10µA shutdown current supports battery-powered portable instrumentation. |
| Analog Input Range | 0V to VREF unipolar pseudo-differential input; VREF programmable from 2.5V to VDD - supports flexible reference sourcing with external buffers. |
| Digital Interface | SPI-compatible 3-/4-wire or daisy-chain mode; 2.3V–5V OVDD logic compatibility enables direct interfacing with 3.3V or 5V microcontrollers. |
| Package & Environment | 10-pin µMAX (3mm × 5mm) package; specified from –40°C to +85°C - suitable for industrial PCB space constraints and extended ambient conditions. |
Pinout & Package
MAX11163EUB+ is housed in a 10-pin µMAX package (3mm × 5mm, 0.65mm pitch), with exposed pad for thermal enhancement. Pin 1 is marked by a dot; top-view pin numbering follows standard µMAX orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 REF | External reference input | Accepts 2.5V–5.25V low-impedance reference; requires ≥10µF X5R/X7R ceramic bypass close to pin for 16-bit stability. |
| 2 VDD | Analog power supply | 4.75V–5.25V analog rail; must be decoupled with 0.1µF + 10µF capacitors per device to suppress switching noise. |
| 3 AIN+ | Positive analog input | Pseudo-differential input with –0.1V to (VDD + 0.1V) absolute range; sampled via 40pF internal capacitor. |
| 4 AIN– | Negative analog input | Common-mode reference node; connects to sensor ground or remote sense point to reject common-mode noise. |
| 5 GND | Power-supply ground | Single analog/digital ground plane recommended; separate AGND/DGND only if strict isolation required. |
| 6 CNVST | Conversion start input | Rising edge initiates sampling; logic level during edge selects CS (SDI high) or daisy-chain (SDI low) mode. |
| 7 SDO | Serial data output | 3-state output; provides busy indicator bit before 16-bit data in all interface modes; valid on SCLK falling edge. |
| 8 SCLK | Serial clock input | Drives data out; minimum period 14ns (VOVDD > 4.5V); timing critical near CNVST edge - keep quiet ±25ns/±10ns. |
| 9 SDI | Serial data input / mode select | Mode selection at CNVST rising edge; in daisy-chain, receives prior ADC's SDO data; high-impedance when unused. |
| 10 OVDD | Digital interface supply | 2.3V–5.25V logic rail; powers digital core and I/O; decouple identically to VDD for noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | True SAR architecture delivers first valid sample in 2.6µs with zero latency - essential for closed-loop feedback control. |
| Overvoltage input protection | ±20mA clamp current on AIN+/AIN– enables direct connection to industrial transducers without external protection diodes. |
| Dual-supply flexibility | Independent VDD (4.75–5.25V) and OVDD (2.3–5.25V) allow mixed-voltage system integration and optimized power partitioning. |
| Multi-configuration serial interface | Supports 3-wire CS, 4-wire CS, and daisy-chain modes - reduces wiring count in multichannel systems while maintaining timing determinism. |
| Busy-indicator signaling | SDO asserts busy bit before data transfer, eliminating need for external timers or polling in real-time embedded firmware. |
| Low-noise analog front-end | 0.38 LSBRMS transition noise and 6MHz full-power bandwidth enable accurate sampling of fast-settling sensor signals. |
Applications
| Industrial Process Control | Medical Instrumentation |
|---|---|
Use Scenario: High-resolution monitoring of pressure, temperature, and flow sensors in PLC analog input modules. IC Role / Device Role / Timing Role: Primary SAR ADC digitizing 0–5V sensor outputs with 16-bit linearity and sub-µs acquisition for multi-channel scan rates up to 250ksps. Use Value: ±0.5 LSB INL and 93.2dB SNR ensure traceable calibration compliance and minimal measurement uncertainty in Class A industrial systems. |
Use Scenario: Digitizing ECG, EEG, and patient vital sign waveforms in portable diagnostic devices. IC Role / Device Role / Timing Role: Low-power, low-noise ADC capturing biopotential signals with pseudo-differential inputs rejecting 50/60Hz mains interference. Use Value: 10µA shutdown current extends battery life; 1µs acquisition enables synchronized multi-lead sampling without inter-channel skew. |
| Test and Measurement | Automatic Test Equipment |
Use Scenario: Benchtop DMMs and portable oscilloscopes requiring DC accuracy and AC fidelity in compact form factors. IC Role / Device Role / Timing Role: Precision unipolar ADC referenced to stable 5V source, supporting 250ksps waveform capture with 93.2dB SNR. Use Value: Guaranteed no-missing-codes and ±0.2 LSB DNL eliminate code gaps in histogram-based metrology applications. |
Use Scenario: Channel-per-pin ATE systems performing simultaneous parametric testing on semiconductor devices. IC Role / Device Role / Timing Role: Daisy-chained MAX11163EUB+ units provide synchronized 16-bit sampling across dozens of channels using single SCLK/SDO bus. Use Value: Busy-indicator mode removes timing uncertainty in high-speed test sequences, improving test throughput and repeatability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | 16-bit, 1MSPS, single-ended input; 2.5V–5V supply; SPI-only interface; no daisy-chain or busy indicator. | Better speed but lacks pseudo-differential input and system-level synchronization features. | Select when maximum throughput >250ksps is required and common-mode rejection is not critical. |
| AD7980BRMZ | 16-bit, 1MSPS, pseudo-differential; 2.3V–5.5V supply; SPI interface; no integrated overvoltage clamps. | Higher speed and wider supply range, but requires external protection circuitry for industrial overvoltage events. | Select for high-speed data loggers where external fault protection is already implemented. |
Compared with ADS8860IDRCT and AD7980BRMZ, the MAX11163EUB+ trades raw speed for integrated system features - including daisy-chain capability, built-in overvoltage clamps, and busy-indicator signaling - making it optimal for space-constrained, multichannel industrial and medical designs where reliability and deterministic timing outweigh peak sampling rate.
Availability
MAX11163EUB+ is available at Aetrix Electronics and suitable for industrial process control, medical instrumentation, and automatic test equipment requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for MAX11163EUB+ 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 high-performance analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX11163EUB+ belongs to Maxim's precision SAR ADC family targeting high-fidelity data acquisition in space- and power-constrained systems - emphasizing DC accuracy, AC performance, and ease of system integration over raw speed.
FAQ
What is the maximum sampling rate supported by the MAX11163EUB+?
The MAX11163EUB+ supports a maximum sustained sampling rate of 250ksps with guaranteed 16-bit no-missing-codes performance. This rate is achieved with 2.6µs conversion time and 1µs acquisition window, delivering full throughput without pipeline delay or latency - critical for real-time control and synchronized multichannel acquisition in the MAX11163EUB+.
Does the MAX11163EUB+ require an external reference voltage?
Yes, the MAX11163EUB+ requires an external reference voltage applied to the REF pin. The reference range is 2.5V to VDD (up to 5.25V), and it must be low-impedance - typically buffered using a precision reference IC like the MAX6126 or MAX6350, with ≥10µF X5R/X7R ceramic bypass placed adjacent to the REF pin to maintain 16-bit accuracy in the MAX11163EUB+.
Can multiple MAX11163EUB+ devices be connected in daisy-chain mode?
Yes, the MAX11163EUB+ supports daisy-chain configuration via its SPI-compatible interface. When SDI is held low at the CNVST rising edge, the device enters daisy-chain mode: SDO of one unit connects to SDI of the next, sharing CNVST and SCLK lines. This enables synchronized multichannel sampling with minimal GPIO usage - a key system-level feature of the MAX11163EUB+.
What is the purpose of the busy indicator feature in the MAX11163EUB+?
The busy indicator feature in the MAX11163EUB+ uses the SDO pin to signal conversion completion before data transfer begins. One additional SCLK pulse flushes the busy bit, eliminating the need for external timers or firmware polling. It operates in all interface modes (CS and daisy-chain) and simplifies deterministic timing in real-time embedded systems using the MAX11163EUB+.
Is the MAX11163EUB+ compatible with 3.3V microcontrollers?
Yes, the MAX11163EUB+ supports 3.3V logic compatibility through its OVDD supply pin, which accepts 2.3V–5.25V. When OVDD = 3.3V, digital inputs (CNVST, SCLK, SDI) recognize 0.7×3.3V ≈ 2.31V as VIH and 0.3×3.3V ≈ 0.99V as VIL, ensuring reliable interfacing with standard 3.3V microcontrollers without level-shifting - a verified operating condition for the MAX11163EUB+.
MAX11163EUB+ 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:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 250k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI, DSP
- 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:
- 2.3V ~ 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 10-uMAX/uSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11163EUB+ FAQ
1.How can I place an order for MAX11163EUB+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11163EUB+ 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 MAX11163EUB+ reliable?
The price and inventory of MAX11163EUB+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11163EUB+ is usually 5 days.
3.What payment methods are accepted for MAX11163EUB+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11163EUB+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11163EUB+?
MAX11163EUB+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11163EUB+ 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 MAX11163EUB+?
For technical support, including MAX11163EUB+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11163EUB+ requirements.
6.How does Aetrix verify that MAX11163EUB+ is sourced from the original manufacturer or authorized distributors?
All MAX11163EUB+ 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 MAX11163EUB+ meets industry standards.
7.What is the process for return or replacement of MAX11163EUB+?
All MAX11163EUB+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX11163EUB+, 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 MAX11163EUB+ part is unused and in its original packaging.
Return procedure for MAX11163EUB+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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