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Analog Devices Inc./Maxim Integrated MAX1307ECM+
- Part No.:
- MAX1307ECM+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 48-LQFP
- Datasheet:
-
MAX1307ECM+.pdf
- Description:
- IC ADC 12BIT 1075KSPS 48-LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:107
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Product details
Overview
MAX1307ECM+ from Maxim Integrated is a 12-bit, parallel-output analog-to-digital converter (ADC) with 1075ksps sampling rate, 0 to +5V unipolar input range, ±6V fault-tolerant analog inputs, and on-chip 2.5V reference. It operates from +4.75V to +5.25V analog supply and +2.7V to +5.25V digital supply, consuming 36mA total supply current, and targets industrial data-acquisition systems requiring robust signal conditioning.
For engineers reviewing the MAX1307ECM+ datasheet, MAX1307ECM+ pinout, MAX1307ECM+ application, or MAX1307ECM+ equivalent, key selection considerations include its unipolar input scaling, internal/external clock flexibility, 20MHz parallel interface timing, fault tolerance for overvoltage transients, and TQFP-48 package compatibility with high-density PCB layouts.
Technical Context
The MAX1307ECM+ integrates a track-and-hold (T/H) circuit with 20MHz input bandwidth and 0.72µs conversion time, enabling accurate digitization of fast-changing industrial sensor signals. Its input stage supports direct connection to ±6V-tolerant field wiring without external protection components.
It features dual reference architecture: an internal 2.5V bandgap reference (±30ppm/°C drift) and support for external 2.0V–3.0V references via REF/REFMS pins. Clocking is selectable between internal 15MHz oscillator and external 100kHz–20MHz source via INTCLK/EXTCLK control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output codes for precise amplitude quantization in measurement systems. |
| Sampling Rate | 1075ksps - supports real-time capture of signals up to ~500kHz Nyquist bandwidth in vibration analysis. |
| Analog Input Range | 0 to +5V - matches standard PLC analog I/O levels and eliminates need for external level-shifting circuitry. |
| Fault Tolerance | ±6V on AIN - withstands transient overvoltages common in industrial motor control and factory automation environments. |
| Reference Voltage | Internal 2.5V ±0.025V - provides stable conversion基准 without external components; also accepts 2.0V–3.0V external reference for system-level calibration. |
| Supply Current | 36mA analog + 1.3mA digital - enables thermal-aware layout in compact industrial modules with limited airflow. |
| Operating Temperature | -40°C to +85°C - qualified for extended temperature operation in harsh industrial enclosures and outdoor equipment. |
Pinout & Package
MAX1307ECM+ is housed in a 48-pin TQFP package (7mm × 7mm footprint) with exposed thermal pad, optimized for thermal dissipation and high-density routing in industrial PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN (Pin 4) | Analog Input | Single-ended unipolar input accepting 0V to +5V signals; ±6V fault-tolerant for field-wire surge immunity. |
| AVDD (Pins 1,15,17) | Analog Power Supply | +4.75V to +5.25V analog rail; multiple pins reduce IR drop and improve PSRR in noisy environments. |
| AGND (Pins 2,3,14,16,23) | Analog Ground | Dedicated low-noise return path; separation from DGND prevents digital switching noise from degrading SNR. |
| MSV (Pin 6) | Midscale Voltage Bypass | For unipolar mode: bypass to AGND with 2.2µF + 0.1µF capacitors to stabilize midscale reference point. |
| REF / REFMS (Pins 19,18) | Reference Input/Bypass | Accepts 2.0V–3.0V external reference or connects to internal 2.5V buffer; enables system-level gain calibration. |
| D0–D11 (Pins 26–37) | Parallel Data Outputs | 12-bit CMOS outputs with tri-state control (RD/CS); compatible with 3.3V/5V microcontrollers and FPGAs. |
| CONVST (Pin 45) | Conversion Start | Rising-edge triggered; initiates sample-and-hold acquisition and defines precise timing for synchronized multi-channel sampling. |
| EOC (Pin 40) | End-of-Conversion Flag | Active-low strobe indicating valid data ready on D0–D11; used for interrupt-driven read operations in embedded firmware. |
Key Features
| Feature | Design Value |
|---|---|
| ±1 LSB INL, ±0.9 LSB DNL | Ensures monotonicity and <0.025% full-scale linearity error-critical for closed-loop control accuracy in process instrumentation. |
| 84dBc SFDR at 500kHz | Enables clean spectral analysis of mechanical vibration harmonics without spurious masking of critical fault frequencies. |
| 0.72µs conversion time | Supports deterministic latency in real-time control loops where ADC delay must be bounded and predictable. |
| Internal 15MHz oscillator | Eliminates external crystal or clock generator, reducing BOM count and board space in cost-sensitive industrial modules. |
| 48-pin TQFP with thermal pad | Facilitates automated optical inspection (AOI) and reflow profiling while maintaining thermal performance up to 85°C ambient. |
Applications
| Industrial Process Control | Vibration Monitoring |
|---|---|
Use Scenario: Continuous monitoring of pressure, temperature, and flow sensors in chemical plant PLC racks. IC Role / Device Role / Timing Role: Primary ADC digitizing 4–20mA loop signals conditioned to 0–5V range with ±6V fault tolerance against ESD and lightning-induced surges. Use Value: Eliminates external overvoltage protection components while maintaining 12-bit resolution across -40°C to +85°C operating range. | Use Scenario: Embedded edge node capturing accelerometer waveforms from rotating machinery bearings. IC Role / Device Role / Timing Role: High-speed parallel ADC synchronizing with FPGA logic for real-time FFT computation at 1075ksps. Use Value: 84dBc SFDR ensures detection of low-amplitude bearing defect frequencies buried in noise floor. |
| Data-Acquisition Systems | Test & Measurement Equipment |
Use Scenario: Modular DAQ card for laboratory-grade multichannel voltage logging with programmable input ranges. IC Role / Device Role / Timing Role: Unipolar ADC providing calibrated 0–5V digitization with internal 2.5V reference traceable to system master clock. Use Value: Internal reference stability (±30ppm/°C) reduces calibration drift between ambient temperature cycles. | Use Scenario: Portable handheld oscilloscope front-end digitizing analog signals up to 500kHz bandwidth. IC Role / Device Role / Timing Role: Low-latency ADC delivering 0.72µs conversion result for responsive UI updates and waveform rendering. Use Value: 20MHz parallel bus enables burst reads without DMA bottlenecks, improving effective sample throughput in embedded ARM systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog-to-digital conversion applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7892BRZ-5 | 12-bit, 1.25Msps SAR ADC; single-supply +5V only; no internal reference; requires external REF. | Lacks ±6V fault tolerance and integrated 2.5V reference; needs external op-amp driver for high-Z sources. | Select when higher speed (1.25Msps) is required and system already provides precision external reference. |
| ADS8325IPW | 16-bit, 100ksps SAR ADC; SPI interface; internal 2.5V reference; ±10V input range option. | Lower sampling rate but higher resolution; serial interface reduces pin count but increases firmware overhead. | Select when DC accuracy and noise floor matter more than speed-e.g., precision weigh scale or strain gauge readout. |
Compared with AD7892BRZ-5 and ADS8325IPW, the MAX1307ECM+ uniquely balances 1075ksps speed, 0–5V unipolar scaling, ±6V fault tolerance, and integrated reference in a parallel-interface TQFP package-making it optimal for industrial DAQ where robustness, timing determinism, and minimal external components are prioritized.
Availability
MAX1307ECM+ is available at Aetrix Electronics and suitable for industrial process control, vibration monitoring, and data-acquisition systems requiring stable component supply, long-term lifecycle support, and guaranteed traceability.
Supply support for MAX1307ECM+ 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 industrial, automotive, and communications markets.
The MAX1307ECM+ belongs to Maxim's high-speed precision ADC product line, engineered specifically for rugged industrial data acquisition where fault tolerance, timing accuracy, and reference stability are non-negotiable.
FAQ
What is the maximum analog input voltage the MAX1307ECM+ can tolerate without damage?
The MAX1307ECM+ features ±6V fault-tolerant analog inputs. This means the AIN pin can withstand voltages from -6V to +6V relative to AGND without damage-even when the device is unpowered-making it suitable for industrial environments with unpredictable transients. The specified 0 to +5V input range remains valid for accurate conversion within that window.
Does the MAX1307ECM+ require an external clock to operate?
No, the MAX1307ECM+ does not require an external clock. It includes an internal 15MHz oscillator that enables autonomous operation. When INTCLK/EXTCLK is tied to AVDD, the internal clock drives conversion; tying it to AGND selects external clock mode. This flexibility simplifies design in systems lacking a stable clock source.
Can the MAX1307ECM+ use an external reference voltage, and what is the acceptable range?
Yes, the MAX1307ECM+ supports external reference voltages applied to the REF and REFMS pins. The valid range is +2.0V to +3.0V. This allows system-level calibration, temperature compensation, or synchronization with other precision references-while retaining full 12-bit performance and specified dynamic parameters like SINAD and SFDR.
What is the purpose of the MSV pin on the MAX1307ECM+ and how should it be configured?
The MSV (Midscale Voltage) pin on the MAX1307ECM+ sets the midscale point of the unipolar transfer function. For the MAX1307ECM+, MSV must be bypassed to AGND using both a 2.2µF and a 0.1µF capacitor. This stabilizes the internal bias network and ensures accurate 0–5V full-scale linearity; incorrect MSV decoupling causes offset drift and INL degradation.
How does the MAX1307ECM+ handle power-down, and what is the shutdown current?
The MAX1307ECM+ enters low-power shutdown mode when the SHDN pin is driven high. In this state, analog supply current drops to ≤10µA and digital supply current to ≤1µA. This ultra-low shutdown current enables energy-efficient operation in battery-backed or intermittently active DAQ nodes-while allowing full recovery within microseconds upon SHDN deassertion.
MAX1307ECM+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 48-LQFP
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 1.08M
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- Parallel
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-LQFP (7x7)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1307ECM+ FAQ
1.How can I place an order for MAX1307ECM+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1307ECM+ 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 MAX1307ECM+ reliable?
The price and inventory of MAX1307ECM+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1307ECM+ is usually 5 days.
3.What payment methods are accepted for MAX1307ECM+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1307ECM+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1307ECM+?
MAX1307ECM+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1307ECM+ 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 MAX1307ECM+?
For technical support, including MAX1307ECM+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1307ECM+ requirements.
6.How does Aetrix verify that MAX1307ECM+ is sourced from the original manufacturer or authorized distributors?
All MAX1307ECM+ 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 MAX1307ECM+ meets industry standards.
7.What is the process for return or replacement of MAX1307ECM+?
All MAX1307ECM+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1307ECM+, 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 MAX1307ECM+ part is unused and in its original packaging.
Return procedure for MAX1307ECM+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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