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Analog Devices Inc./Maxim Integrated MX7572KN12
- Part No.:
- MX7572KN12
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
MX7572KN12.pdf
- Description:
- MX7572 CMOS 12-BIT ADC
- Quantity:
- Payment:
- Shipping:
Inventory:845
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Product details
Overview
MX7572KN12 from Maxim Integrated is a complete high-speed CMOS 12-bit analog-to-digital converter with parallel interface, 100 kSPS sampling rate, ±0.5 LSB integral nonlinearity (INL), and ±0.5 LSB differential nonlinearity (DNL), designed for precision data acquisition in industrial instrumentation and test equipment.
For engineers reviewing the MX7572KN12 datasheet, MX7572KN12 pinout, MX7572KN12 application, or MX7572KN12 equivalent, this device requires attention to its unipolar 0V–+5V input range, TTL-compatible digital interface, and single +5V supply operation - critical for legacy embedded systems and calibration-grade measurement front-ends.
Technical Context
The MX7572KN12 implements a successive approximation register (SAR) architecture with internal sample-and-hold, enabling accurate DC and low-frequency AC signal digitization without external timing components. It features a built-in reference buffer and supports both internal and external 5V reference inputs.
Its parallel 12-bit output bus operates at TTL logic levels, with separate BUSY and CONVERT signals for asynchronous control. The device uses a single +5V supply and draws 24 mA typical current, making it suitable for power-constrained but precision-critical applications where resolution and repeatability outweigh speed demands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output codes for sub-1.2 mV quantization step with 5V full-scale range. |
| Sampling Rate | 100 kSPS - supports real-time capture of signals up to ~40 kHz (Nyquist-limited), sufficient for vibration monitoring and sensor readout. |
| INL / DNL | ±0.5 LSB - ensures monotonicity and <0.012% end-point linearity error, critical for closed-loop control feedback accuracy. |
| Input Range | 0V to +5V unipolar - interfaces directly with standard op-amp output stages and voltage-scaled transducer signals. |
| Supply Voltage | +5V only - eliminates need for dual or split supplies, simplifying power design in legacy 5V systems. |
| Reference | Internal or external 5V - enables system-level reference sharing or independent calibration via external precision source. |
| Operating Temp | 0°C to +70°C - qualified for commercial-grade environments including benchtop instruments and factory-floor controllers. |
Pinout & Package
MX7572KN12 is housed in a 24-pin plastic dual in-line package (PDIP) with 0.6-inch width and standard 0.1-inch pin spacing (drawing code N24-3*), compatible with through-hole prototyping and legacy PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–12, 14–15, 17–24 | Parallel Data Output (D0–D11), Control I/O | 12-bit TTL-compatible digital output bus plus BUSY, CONVERT, RD, WR, CS, and REF IN/OUT pins - enables direct connection to 8051, Z80, or FPGA data buses without level-shifting. |
| 13 | AGND | Analog ground reference - must be isolated from digital ground at single-point star connection to minimize noise coupling into conversion path. |
| 16 | DGND | Digital ground return - separates switching noise from analog section; ties to AGND at package pin per layout guidelines. |
| 20 | VCC | +5V supply - powers both analog and digital sections; requires local 0.1 µF ceramic decoupling adjacent to pin. |
Key Features
| Feature | Design Value |
|---|---|
| Complete SAR ADC with on-chip S/H | Eliminates external sample-and-hold circuitry and associated timing complexity in medium-speed data loggers. |
| TTL-compatible parallel interface | Direct interfacing to microcontrollers and FPGAs without bus translators, reducing BOM count and layout area. |
| ±0.5 LSB INL/DNL over temperature | Guarantees consistent measurement fidelity across 0°C–70°C without recalibration in portable test gear. |
| Single +5V supply operation | Simplifies power architecture in cost-sensitive industrial controllers where 5V rails are already present. |
| Internal 5V reference buffer | Allows stable reference sourcing from system 5V rail while maintaining 0.05% reference drift specification. |
Applications
| Industrial Process Monitoring | Automated Test Equipment (ATE) |
|---|---|
|
Use Scenario: Continuous voltage monitoring of pressure, temperature, and flow sensors in PLC-based control cabinets. IC Role / Device Role / Timing Role: Precision front-end ADC converting conditioned analog sensor outputs into 12-bit digital values for real-time PID loop execution. Use Value: ±0.5 LSB linearity ensures <±0.012% full-scale error in closed-loop setpoint tracking, improving process stability. |
Use Scenario: Digitizing calibration standards and DUT outputs during functional testing of analog ICs and power modules. IC Role / Device Role / Timing Role: High-accuracy reference ADC used in metrology-grade ATE backplanes for traceable measurement validation. Use Value: Matched INL/DNL performance enables <0.02% absolute accuracy when paired with NIST-traceable references. |
| Benchtop Digital Multimeters | Legacy Embedded Data Loggers |
|
Use Scenario: High-resolution DC voltage and current measurement in handheld and bench DMMs requiring 0.01% basic accuracy. IC Role / Device Role / Timing Role: Core digitizer in auto-ranging input stage, operating at 100 kSPS for fast settling and averaging. Use Value: Single-supply +5V operation reduces power supply complexity versus dual-rail alternatives, lowering thermal drift. |
Use Scenario: Long-term environmental sensor recording in remote telemetry nodes powered by 5V wall adapters or batteries. IC Role / Device Role / Timing Role: Low-power, high-stability ADC capturing thermocouple, RTD, and strain gauge signals at 10–100 Hz rates. Use Value: Internal reference buffer maintains <10 ppm/°C drift, enabling >24-hour unattended calibration stability. |
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 |
|---|---|---|---|
| MAX162BCNG | Same 12-bit SAR architecture, identical 100 kSPS rate and ±0.5 LSB INL, but includes internal clock oscillator (MX7572KN12 requires external clock). | Reduces external component count in space-constrained designs; less suitable where precise external clock synchronization is required. | Select MAX162BCNG if eliminating external clock generation is prioritized over synchronous multi-ADC timing control. |
| AD7810BRZ | 10-bit resolution, 350 kSPS, SPI interface, single +2.7V–+5.25V supply; no internal reference buffer. | Higher speed but lower resolution; requires external reference and level-shifting for 5V systems. | Select AD7810BRZ only if throughput >100 kSPS is mandatory and 12-bit precision is not required. |
Compared with MAX162BCNG and AD7810BRZ, the MX7572KN12 provides guaranteed 12-bit linearity at 100 kSPS with integrated reference buffering and TTL-native parallel interface - uniquely suited for retrofitting or maintaining legacy 5V microcontroller-based measurement systems.
Availability
MX7572KN12 is available at Aetrix Electronics and suitable for industrial process monitoring, automated test equipment, and benchtop instrumentation requiring stable component supply and long-term obsolescence management.
Supply support for MX7572KN12 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, mixed-signal, and power management ICs for industrial, communications, and computing applications.
The MX7572 series belongs to Maxim's legacy high-precision data acquisition product line, engineered for applications demanding verified 12-bit accuracy, robustness in noisy environments, and compatibility with established 5V system architectures.
FAQ
What is the maximum sampling rate supported by the MX7572KN12?
The MX7572KN12 supports a maximum sampling rate of 100 kSPS, determined by its internal conversion time and external clock requirements. This rate is fixed for the MX7572KN12 variant and enables accurate digitization of signals up to ~40 kHz. The MX7572KN12 does not support oversampling or programmable rate adjustment - its timing is governed by the external clock applied to the CONV pin.
Does the MX7572KN12 require an external reference voltage?
The MX7572KN12 can operate with either its internal 5V reference (buffered and internally regulated) or an external 5V reference applied to the REF IN pin. When using the internal reference, the REF OUT pin provides a buffered copy for driving external circuitry. No external reference is required unless higher accuracy or temperature stability than the internal reference offers is needed.
Is the MX7572KN12 pin-compatible with other MX7572 variants like MX7572JN12 or MX7572LN12?
Yes - the MX7572KN12 shares identical pinout, package (24-pin PDIP, N24-3*), and electrical interface with MX7572JN12 and MX7572LN12. Differences between these variants are limited to temperature grade (0°C to +70°C for K-grade) and RoHS compliance (MX7572KN12 is leaded; J/L grades may include RoHS options), not pin function or layout.
What logic family is compatible with the MX7572KN12's digital interface?
The MX7572KN12 features TTL-compatible input and output logic levels, meaning it interfaces directly with standard 5V TTL and CMOS devices such as the 8051, Z80, and older FPGA families without level shifters. Its outputs drive minimum 20 mA at VOH = 2.4V and VOL = 0.4V, meeting standard TTL fan-out specifications.
Can the MX7572KN12 operate from a supply voltage other than +5V?
No - the MX7572KN12 is specified exclusively for +5V single-supply operation. It does not support 3.3V, ±5V, or dual-supply configurations. Deviating from +5V VCC risks improper internal biasing, degraded INL/DNL performance, or functional failure. Decoupling with a 0.1 µF ceramic capacitor at the VCC pin is mandatory.
MX7572KN12 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 308k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- 0:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- Internal
- Voltage - Supply, Analog:
- 4.75V ~ 5.25V
- Voltage - Supply, Digital:
- 4.75V ~ 5.25V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 24-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MX7572KN12 FAQ
1.How can I place an order for MX7572KN12 through Aetrix?
Please submit a Request for Quotation (RFQ) for MX7572KN12 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 MX7572KN12 reliable?
The price and inventory of MX7572KN12 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MX7572KN12 is usually 5 days.
3.What payment methods are accepted for MX7572KN12?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MX7572KN12 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MX7572KN12?
MX7572KN12 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MX7572KN12 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 MX7572KN12?
For technical support, including MX7572KN12 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MX7572KN12 requirements.
6.How does Aetrix verify that MX7572KN12 is sourced from the original manufacturer or authorized distributors?
All MX7572KN12 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 MX7572KN12 meets industry standards.
7.What is the process for return or replacement of MX7572KN12?
All MX7572KN12 units undergo pre-shipment inspection (PSI). If there is an issue with MX7572KN12, 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 MX7572KN12 part is unused and in its original packaging.
Return procedure for MX7572KN12:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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