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Analog Devices Inc./Maxim Integrated MX574AJN+
- Part No.:
- MX574AJN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-DIP (0.600", 15.24mm)
- Datasheet:
-
MX574AJN+.pdf
- Description:
- IC ADC 12BIT SAR 28DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,351
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Product details
Overview
MX574AJN+ from Maxim Integrated is a complete 12-bit successive-approximation analog-to-digital converter (ADC) with integrated buried-zener voltage reference and on-chip clock. It delivers ±1/2 LSB integral nonlinearity at +25°C, 25 µs max conversion time, 150 mW power dissipation, and supports ±5V or ±10V bipolar and 0–10V/0–20V unipolar input ranges via pin strapping - used in high-accuracy process control systems requiring stable, self-contained data acquisition.
For engineers reviewing the MX574AJN+ datasheet, MX574AJN+ pinout, MX574AJN+ application, or MX574AJN+ equivalent, this page provides verified technical context, real-world interface timing constraints, confirmed analog input configuration options, and validated alternative parts for industrial signal conditioning and embedded data acquisition designs.
Technical Context
The MX574AJN+ employs a successive approximation register (SAR) architecture with a 2.5 kΩ output impedance DAC and zero-crossing comparator. Its internal 10 V buried-zener reference achieves 10 ppm/°C temperature coefficient and supports external loading up to 2 mA when using ±15 V supplies.
It features dual-mode digital interface: full microprocessor control (using CS, CE, R/C, A0, and 12/8) or stand-alone operation (R/C-triggered). Conversion is initiated by R/C low pulse (stand-alone) or CE/CS assertion (bus mode), with STS indicating busy status and data validity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete codes with no missing codes over temperature. |
| Max Conversion Time | 25 µs - defines minimum sampling period for 40 kSPS continuous acquisition. |
| INL (T = +25°C) | ±1/2 LSB - ensures monotonicity and <0.012% full-scale linearity error in precision control loops. |
| Reference Output | 10.00 V ±2 mV (no load) - enables direct biasing of REFIN and BIPOFF with ≤10 ppm/°C drift. |
| Power Dissipation | 150 mW at ±15 V - enables operation without forced cooling in compact industrial modules. |
| Analog Input Range | Selectable ±5 V / ±10 V / 0–10 V / 0–20 V - eliminates external scaling amplifiers in multi-range sensor interfaces. |
| Digital Interface | 8-/12-/16-bit bus compatible via 12/8 and A0 pins - supports legacy 8-bit microcontrollers without glue logic. |
Pinout & Package
MX574AJN+ is supplied in a 28-pin plastic DIP (dual in-line package) with 0.6-inch body width and 0.1-inch pin pitch. Pin 1 is marked with a notch or dot; pin numbering proceeds counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | VL | Logic supply input (+4.5 V to +5.5 V) - powers digital core and output buffers independently from analog rails. |
| 2 | 12/8 | Data format select - low enables 8-bit bus mode (two-byte read); high enables 12-bit word output. |
| 3 | CS | Chip-select input - must be low with CE high to enable device; used for address decoding in multi-peripheral systems. |
| 4 | A0 | Byte address/short-cycle control - low initiates 12-bit conversion; high selects 8-bit mode or reads LSB nibble. |
| 5 | R/C | Read/Convert control - low starts conversion; high enables data read; also serves as standalone trigger. |
| 6 | CE | Chip-enable input - high enables device; faster propagation than CS for precise timing-critical conversions. |
| 7 | VCC | Positive analog supply (+11.4 V to +16.5 V) - powers SAR, DAC, and reference circuitry. |
| 8 | REFOUT | +10 V reference output - drives REFIN and BIPOFF; can source 2 mA total with ±15 V supplies. |
| 9 | AGND | Analog ground reference - must be tied directly to system analog ground point to minimize reference noise. |
| 10 | REFIN | Reference input - connected to REFOUT for internal reference use; accepts external 10 V sources. |
| 11 | VEE | Negative analog supply (−11.4 V to −16.5 V) - required for bipolar input operation and DAC swing. |
| 12 | BIPOFF | Bipolar offset input - tied to REFOUT to configure ±5 V or ±10 V input range; enables offset trimming. |
| 13 | 10VIN | 10 V span analog input - used with AGND for 0–10 V unipolar or ±5 V bipolar operation (5 kΩ input impedance). |
| 14 | 20VIN | 20 V span analog input - used with AGND for 0–20 V unipolar or ±10 V bipolar operation (10 kΩ input impedance). |
| 15 | DGND | Digital ground - connected to AGND at single point near package to prevent ground loop errors. |
| 16–27 | D0–D11 | Three-state data outputs - latched 12-bit result; direction and byte alignment controlled by A0 and 12/8. |
| 28 | STS | Status output - high during conversion; used for polling or interrupt generation to synchronize data reads. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 10 V buried-zener reference | Delivers 10 ppm/°C TC and <2 mV initial error - eliminates need for external precision reference ICs. |
| Pin-strappable input ranges | Supports ±5 V, ±10 V, 0–10 V, and 0–20 V without external resistors - reduces BOM count and layout complexity. |
| BiCMOS monolithic construction | Reduces power to 150 mW vs. comparable bipolar ADCs - enables higher channel density in space-constrained modules. |
| No missing codes over temperature | Guaranteed monotonicity across −40°C to +85°C - critical for closed-loop control where code reversals cause instability. |
| 150 ns max data access time | Enables direct interfacing to 8-MHz 8-bit microcontrollers without wait states - simplifies firmware timing design. |
Applications
| Industrial Process Monitoring | Automated Test Equipment (ATE) |
|---|---|
|
Use Scenario: Continuous monitoring of pressure, temperature, and flow sensors in PLC-based manufacturing lines. IC Role / Device Role / Timing Role: Primary ADC digitizing 4–20 mA transducer outputs conditioned through precision op-amps. Use Value: ±1/2 LSB INL and 25 µs conversion ensure <0.012% measurement fidelity and 40 kSPS throughput for real-time PID feedback. |
Use Scenario: Multi-channel voltage/current measurement in benchtop calibration systems verifying sensor accuracy. IC Role / Device Role / Timing Role: Stand-alone ADC triggered by R/C pulse, synchronized to test sequencer for deterministic sampling. Use Value: Internal 10 V reference and pin-strapped ±10 V range eliminate external calibrators for 12-bit traceable measurements. |
| Electro-Mechanical Control Systems | High-Speed Data Acquisition Modules |
|
Use Scenario: Position and current feedback in servo motor drives with FPGA-based motion controllers. IC Role / Device Role / Timing Role: Bus-interfaced ADC on 8-bit data bus (12/8 = low), reading MSB/LSB bytes via A0 toggling. Use Value: 8-bit bus compatibility and 150 ns access time allow tight integration with legacy microcontrollers without FIFO buffering. |
Use Scenario: Compact PCIe or USB DAQ cards acquiring vibration spectra from accelerometers at >20 kSPS. IC Role / Device Role / Timing Role: Core ADC in modular design with decoupled analog/digital grounds and shielded 20VIN routing. Use Value: 20VIN input path (10 kΩ Zin) and 25 µs conversion support wide dynamic range without gain switching artifacts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7892BRZ-1 | 2 µs conversion, 5 V single supply, no internal reference - requires external 2.5 V ref and level-shifting for ±10 V inputs. | Higher speed but lacks pin-strappable ranges and integrated reference - increases BOM and layout effort. | Choose AD7892BRZ-1 only if >100 kSPS sampling and single-supply operation are mandatory. |
| MAX1167BCAP+ | 16-bit resolution, 10 µs conversion, internal 4.096 V ref, SPI interface - no parallel bus or bipolar input support. | Higher resolution but incompatible interface and limited input range - unsuitable for drop-in replacement in existing 8-bit bus designs. | Choose MAX1167BCAP+ only for new designs prioritizing resolution over bus compatibility and bipolar range. |
Compared with AD7892BRZ-1 and MAX1167BCAP+, the MX574AJN+ uniquely combines integrated 10 V reference, pin-strappable ±10 V/0–20 V input, and parallel 8-/12-bit bus interface - making it optimal for retrofitting legacy industrial controllers without redesigning signal chain or PCB layout.
Availability
MX574AJN+ is available at Aetrix Electronics and suitable for industrial process monitoring, automated test equipment, electro-mechanical control systems, and high-speed data acquisition modules requiring stable component supply across extended temperature ranges.
Supply support for MX574AJN+ 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 semiconductor company specializing in high-performance analog and mixed-signal ICs for industrial, automotive, and communications applications.
The MX574A series belongs to Maxim's industry-standard complete ADC family, designed specifically for embedded data acquisition systems needing self-contained, low-power, high-accuracy conversion without external timing or reference components.
FAQ
What is the operating temperature range for the MX574AJN+?
The MX574AJN+ is rated for −40°C to +85°C operation (industrial grade), matching the MX574AJ/S suffix designation per Maxim's ordering guide. This range is confirmed in the Absolute Maximum Ratings table and Electrical Characteristics sections for MX574AJ variants, supporting deployment in harsh factory-floor environments without derating.
Does the MX574AJN+ require external clock circuitry?
No, the MX574AJN+ includes an on-chip clock generator - no external crystal, oscillator, or timing components are needed. The internal clock runs at approximately 600 kHz, enabling the specified 25 µs max conversion time. External clocking is not supported; all timing derives from the internal oscillator.
Can the MX574AJN+ operate with a single +5 V supply?
No, the MX574AJN+ requires three separate supplies: VL = +5 V (logic), VCC = +12 V or +15 V (positive analog), and VEE = −12 V or −15 V (negative analog). Single-supply operation is not supported; bipolar input ranges and internal DAC functionality depend on dual-rail analog supplies.
How is the input range selected on the MX574AJN+?
Input range is selected by pin strapping: connect BIPOFF to REFOUT for ±5 V or ±10 V bipolar operation; tie 10VIN to AGND for 0–10 V unipolar; tie 20VIN to AGND for 0–20 V unipolar. No external resistors are needed - all configurations are enabled solely by connections to REFOUT, AGND, and BIPOFF pins.
What is the purpose of the STS pin on the MX574AJN+?
The STS (Status) pin on the MX574AJN+ is an open-drain output that goes high during conversion and returns low when data is valid. It enables polling or interrupt-driven read synchronization - eliminating need for fixed delay loops and ensuring data is read only after full 12-bit conversion completes.
MX574AJN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 28-DIP (0.600", 15.24mm)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 40k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- ±11.4V ~ 16.5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 28-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MX574AJN+ FAQ
1.How can I place an order for MX574AJN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MX574AJN+ 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 MX574AJN+ reliable?
The price and inventory of MX574AJN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MX574AJN+ is usually 5 days.
3.What payment methods are accepted for MX574AJN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MX574AJN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MX574AJN+?
MX574AJN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MX574AJN+ 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 MX574AJN+?
For technical support, including MX574AJN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MX574AJN+ requirements.
6.How does Aetrix verify that MX574AJN+ is sourced from the original manufacturer or authorized distributors?
All MX574AJN+ 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 MX574AJN+ meets industry standards.
7.What is the process for return or replacement of MX574AJN+?
All MX574AJN+ units undergo pre-shipment inspection (PSI). If there is an issue with MX574AJN+, 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 MX574AJN+ part is unused and in its original packaging.
Return procedure for MX574AJN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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