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Analog Devices Inc./Maxim Integrated MAX189CCPA
- Part No.:
- MAX189CCPA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX189CCPA.pdf
- Description:
- IC ADC 12BIT SAR 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,399
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Product details
Overview
MAX189CCPA from Maxim Integrated is a 12-bit successive-approximation analog-to-digital converter (ADC) operating from a single +5V supply, accepting 0V to 4.096V unipolar analog input, featuring an on-chip track/hold, 75ksps throughput, and SPI/QSPI/MICROWIRE-compatible 3-wire serial interface. It requires an external reference and targets low-power sensor digitization in portable or isolated data acquisition systems.
For engineers reviewing the MAX189CCPA datasheet, MAX189CCPA pinout, MAX189CCPA application, or MAX189CCPA equivalent, this page delivers verified electrical specs, package mapping, real-world use scenarios, and validated alternative parts - all grounded in Maxim's official documentation for the MAX189CCPA variant.
Technical Context
The MAX189CCPA implements a 12-bit SAR architecture with integrated track/hold circuitry acquiring signals in ≤1.5µs, using an external reference voltage applied to the REF pin (2.5V to VDD). Conversion is initiated by a falling edge on CS, with end-of-conversion signaled by DOUT rising high.
Its serial interface operates at up to 5MHz clock rate, outputs MSB-first unipolar data preceded by a leading '1', and requires ≥13 SCLK falling edges to read full 12-bit result. The device supports shutdown mode via SHDN pin, reducing supply current to ≤10µA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output codes over full-scale range |
| Throughput Rate | 75ksps - supports real-time sampling of signals up to 37.5kHz (Nyquist-limited) |
| Analog Input Range | 0V to VREF - full-scale range set by externally applied reference voltage (2.5V to 5.25V) |
| Reference Input | External only - REF pin accepts 2.5V–VDD; requires ≤10Ω source impedance and ≤350µA load current during conversion |
| Supply Current | 1.0–2.0mA (operating), ≤10µA (shutdown) - enables battery-powered operation with rapid wake-up |
| INL (MAX189A) | ±½ LSB - ensures monotonicity and <0.012% full-scale linearity error across temperature |
| SINAD | 70dB @ 10kHz - corresponds to ~11.3 effective bits for mid-band signal fidelity |
Pinout & Package
MAX189CCPA is supplied in an 8-pin plastic dual-inline package (PDIP) with 0.3-inch body width. Pin functions are electrically validated per Maxim's official pin description and functional diagram.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Power supply input | +5V ±5% analog/digital supply; must be decoupled locally with 0.1µF ceramic capacitor |
| AIN (Pin 2) | Analog input | Single-ended 0V–VREF sampling node; 16pF input capacitance requires low-impedance drive (<5kΩ) for full AC performance |
| SHDN (Pin 3) | Three-level shutdown control | Pull low for shutdown (≤10µA); float or pull high for active mode - no internal reference activation (unlike MAX187) |
| REF (Pin 4) | External reference input | Accepts 2.5V–VDD reference; bypass with 0.1µF near pin; >12kΩ DC input resistance |
| GND (Pin 5) | Ground return | Common analog/digital ground connection point for PDIP package |
| DOUT (Pin 6) | Serial data output | 3-wire interface output; MSB-first format with leading '1'; transitions on SCLK falling edge |
| CS (Pin 7) | Chip select | Active-low conversion trigger; falling edge initiates hold/conversion; high-impedance DOUT when high |
| SCLK (Pin 8) | Serial clock input | Asynchronous clock up to 5MHz; controls data shift timing; duty cycle unrestricted if ≥100ns per phase |
Key Features
| Feature | Design Value |
|---|---|
| Single-supply +5V operation | Eliminates need for negative or precision analog supplies - simplifies power design in embedded systems |
| Integrated track/hold | Removes requirement for external hold capacitor and driver op-amp - reduces BOM count and board area |
| 3-wire SPI/QSPI/MICROWIRE interface | Direct compatibility with common microcontroller peripherals - no protocol translation or glue logic required |
| 75ksps conversion rate | Enables real-time capture of audio-band and control-loop signals without undersampling complexity |
| Shutdown current ≤10µA | Supports ultra-low-duty-cycle sensing - e.g., 1-sample-per-second operation yields average current <1µA |
Applications
| Portable Data Logging | Remote Digital Signal Processing |
|---|---|
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and pressure over extended field deployment. IC Role / Device Role / Timing Role: ADC digitizing conditioned analog sensor outputs at 1–10Hz intervals, synchronized to microcontroller sleep/wake cycles. Use Value: 10µA shutdown current extends battery life to multi-year operation; 3-wire interface minimizes GPIO usage on resource-constrained MCUs. | Use Scenario: Wireless vibration monitor mounted on rotating machinery, transmitting FFT-processed spectral data via LoRaWAN. IC Role / Device Role / Timing Role: High-fidelity front-end ADC capturing time-domain waveforms prior to on-device FFT computation. Use Value: 70dB SINAD and 75ksps throughput preserve signal integrity for accurate frequency-domain analysis up to 37kHz. |
| Isolated Data Acquisition | High-Accuracy Process Control |
Use Scenario: DIN-rail-mounted PLC module acquiring 4–20mA current loop inputs in electrically noisy industrial environments. IC Role / Device Role / Timing Role: Isolated-side ADC converting opto-coupled or transformer-coupled analog signals into digital values for host controller. Use Value: External reference flexibility allows precise matching to system-level calibration standards; ±½ LSB INL ensures repeatability across thermal cycles. | Use Scenario: Closed-loop temperature controller in semiconductor fabrication equipment requiring stable 0.1°C resolution over 0–150°C range. IC Role / Device Role / Timing Role: Precision ADC feeding PID algorithm with calibrated thermocouple or RTD signal conditioned by instrumentation amplifier. Use Value: 2.5V–5.25V reference input range enables use of ultra-stable external references (e.g., LT1019) to minimize system gain drift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 12-bit, 200ksps, SPI-only interface, 2.7–5.25V supply, internal reference optional | Higher speed and wider supply range; lacks QSPI/MICROWIRE compatibility | Select when higher throughput or dual-supply flexibility is required; verify layout compatibility with different pinout |
| AD7893ARZ-10 | 12-bit, 110ksps, 3-wire serial, ±10V input range (bipolar), external reference required | Supports bipolar inputs and higher full-scale ranges; larger SO-16 package | Choose for industrial applications needing ±10V signal conditioning; requires level-shifting for +5V MCU interfacing |
Compared with ADS7816U and AD7893ARZ-10, the MAX189CCPA offers optimal balance of low power (≤10µA shutdown), compact PDIP-8 footprint, and broad serial protocol support - making it preferred for space- and energy-constrained designs where 75ksps suffices.
Availability
MAX189CCPA is available at Aetrix Electronics and suitable for portable data logging, remote DSP, isolated data acquisition, and high-accuracy process control requiring stable component supply across industrial temperature ranges (0°C to +70°C).
Supply support for MAX189CCPA 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) is a U.S.-based semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, communications, and computing markets.
The MAX189CCPA belongs to Maxim's legacy precision data-converter family designed for low-power, small-footprint, single-supply applications where ease of interface and guaranteed AC performance are critical - especially in battery-operated and electrically isolated systems.
FAQ
What is the reference voltage requirement for MAX189CCPA?
The MAX189CCPA requires an external reference voltage applied to the REF pin, ranging from +2.5V to VDD (+5.25V). For full specified accuracy, the reference must provide ≤10Ω output impedance and sustain ≤350µA load current during conversion. A 0.1µF ceramic capacitor is mandatory at the REF pin for stability. Unlike the MAX187, the MAX189CCPA has no internal reference.
Does MAX189CCPA support SPI, QSPI, and MICROWIRE protocols?
Yes, the MAX189CCPA serial interface is explicitly compatible with SPI, QSPI, and MICROWIRE standards as confirmed in Maxim's datasheet. It uses CPOL = 0 and CPHA = 0 configuration, outputs MSB-first data with a leading '1', and requires ≥13 SCLK falling edges to read the full 12-bit result - matching timing requirements of all three protocols.
What is the maximum analog input frequency supported by MAX189CCPA?
The MAX189CCPA has a 75ksps throughput rate, so its Nyquist limit is 37.5kHz. While its small-signal bandwidth is 4.5MHz, accurate digitization of sinusoidal inputs above 37.5kHz requires undersampling techniques and anti-alias filtering. For standard baseband acquisition, the practical maximum input frequency is 37.5kHz to avoid aliasing.
How does shutdown mode work on MAX189CCPA?
Driving the SHDN pin low places the MAX189CCPA into shutdown mode, reducing supply current to ≤10µA. The device wakes up in ≤2µs (tWAKE) after SHDN is deasserted, allowing immediate conversion initiation. Unlike the MAX187, SHDN logic on the MAX189CCPA does not enable or disable any internal reference - it solely controls power state.
What package type and temperature grade does MAX189CCPA have?
The MAX189CCPA is packaged in an 8-pin plastic dual-inline package (PDIP) with 0.3-inch width and is rated for the commercial temperature range of 0°C to +70°C. The 'C' in CCPA denotes the commercial grade, and 'PA' specifies the PDIP package - consistent with Maxim's ordering nomenclature and confirmed in the datasheet's Ordering Information section.
MAX189CCPA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 75k
- 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:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 8-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MAX189CCPA FAQ
1.How can I place an order for MAX189CCPA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX189CCPA 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 MAX189CCPA reliable?
The price and inventory of MAX189CCPA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX189CCPA is usually 5 days.
3.What payment methods are accepted for MAX189CCPA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX189CCPA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX189CCPA?
MAX189CCPA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX189CCPA 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 MAX189CCPA?
For technical support, including MAX189CCPA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX189CCPA requirements.
6.How does Aetrix verify that MAX189CCPA is sourced from the original manufacturer or authorized distributors?
All MAX189CCPA 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 MAX189CCPA meets industry standards.
7.What is the process for return or replacement of MAX189CCPA?
All MAX189CCPA units undergo pre-shipment inspection (PSI). If there is an issue with MAX189CCPA, 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 MAX189CCPA part is unused and in its original packaging.
Return procedure for MAX189CCPA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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