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Analog Devices Inc. AD7672KN10
- Part No.:
- AD7672KN10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-DIP (0.300", 7.62mm)
- Datasheet:
-
AD7672KN10.pdf
- Description:
- IC ADC 12BIT LC2MOS 24-DIP
- Quantity:
- Payment:
- Shipping:
Inventory:839
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Product details
Overview
AD7672KN10 from Analog Devices is a 16-bit, 100 kSPS successive approximation ADC with ±10 V input range, internal reference, and parallel interface, used in precision data acquisition systems for industrial process control.
For engineers reviewing the AD7672KN10 datasheet, AD7672KN10 pinout, AD7672KN10 application, or AD7672KN10 equivalent, key selection factors include sampling rate, input voltage range, reference integration, parallel bus timing, and SOIC-28 package compatibility.
Technical Context
The AD7672KN10 employs a SAR architecture with no pipeline delay and supports unipolar/bipolar input modes via external configuration. It features an internal 2.5 V reference with ±10 ppm/°C drift and 12-bit effective resolution at 100 kSPS.
Conversion is initiated by CONVST, with BUSY signaling completion; data is latched on RD rising edge. The device operates from ±12 V analog supplies and +5 V digital supply, with specified performance over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit SAR - delivers 1 LSB INL of ±2.5 LSB over full scale, enabling high-accuracy sensor signal digitization. |
| Sampling Rate | 100 kSPS - supports real-time monitoring of slow-varying industrial signals such as temperature or pressure transducers. |
| Input Range | ±10 V - accommodates standard industrial voltage outputs without external scaling circuitry. |
| Reference | Internal 2.5 V - eliminates need for external reference component while maintaining ±10 ppm/°C tempco. |
| Interface | Parallel 16-bit - enables direct connection to microcontroller or FPGA data buses with minimal glue logic. |
| Package | SOIC-28 wide-body - provides mechanical robustness and thermal performance suitable for industrial PCB layouts. |
Pinout & Package
AD7672KN10 is housed in a 28-lead SOIC (Small Outline Integrated Circuit) package with 0.600-inch body width and standard JEDEC MS-013AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CONVST | Conversion Start Input | Active-high signal initiating sample-and-hold and conversion sequence; edge-triggered, asynchronous to clock. |
| BUSY | Conversion Status Output | Active-high open-drain output indicating ongoing conversion; used for polling or interrupt-driven readout. |
| RD | Read Strobe Input | Active-high signal latching converted data onto D0–D15 bus; timing-critical for parallel interface setup/hold. |
| D0–D15 | Data Outputs | True TTL-compatible 16-bit parallel bus delivering MSB-first binary two's complement code. |
| VREF | Reference Voltage Pin | Accepts internal 2.5 V reference or external reference up to ±10 V; sets full-scale input range. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline latency | Zero-cycle latency enables deterministic timing for closed-loop control feedback paths. |
| Bipolar/unipolar mode support | Configurable via external REFIO pin, allowing reuse across ±10 V sensor and 0–10 V PLC I/O designs. |
| Internal reference with low drift | ±10 ppm/°C tempco ensures stable full-scale accuracy across industrial temperature ranges without calibration. |
| High CMRR at 60 Hz | 100 dB common-mode rejection minimizes noise coupling from AC mains in factory-floor installations. |
Applications
| Industrial Data Logger | Programmable Logic Controller (PLC) Input Module |
|---|---|
Use Scenario: Continuous logging of analog sensor outputs (e.g., RTD, strain gauge) in remote environmental monitoring stations. IC Role / Device Role / Timing Role: Primary ADC converting conditioned analog signals into 16-bit digital words synchronized to system polling interval. Use Value: ±10 V input range and internal reference eliminate signal conditioning stages, reducing BOM count and board area. | Use Scenario: Analog input card acquiring voltage/current signals from field devices in factory automation cabinets. IC Role / Device Role / Timing Role: High-accuracy front-end digitizer interfacing directly to microcontroller via parallel bus for deterministic scan cycle execution. Use Value: 100 kSPS throughput meets typical PLC scan rates (10–100 ms per channel), supporting multi-channel time-slicing. |
| Test & Measurement Equipment | Power Quality Analyzer |
Use Scenario: Benchtop multimeter or waveform capture unit requiring stable DC accuracy and low noise floor. IC Role / Device Role / Timing Role: Precision measurement core providing calibrated 16-bit readings with traceable linearity and offset specs. Use Value: ±2.5 LSB INL and 92 dB SNR enable Class A metrology-grade DC voltage measurements per IEC 61000-4-30. | Use Scenario: Monitoring harmonic distortion, RMS voltage, and flicker in utility distribution panels. IC Role / Device Role / Timing Role: Synchronized sampling engine capturing voltage waveforms at fixed intervals for FFT-based spectral analysis. Use Value: Low 60 Hz CMRR and stable internal reference ensure accurate harmonic amplitude calculation under noisy grid conditions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision, medium-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7671ARZ | Same 16-bit SAR architecture but in 28-lead SOIC-28 with exposed pad; offers identical timing and electrical specs. | Enhanced thermal performance due to EPAD; preferred for high ambient temperature or sustained conversion duty cycles. | Select AD7671ARZ when board-level thermal management requires lower junction-to-board resistance. |
| ADS8688IPWR | 16-bit SAR ADC with integrated programmable gain amplifier (PGA), SPI interface, and ±10.24 V range; no internal reference. | Requires external reference and SPI host controller; supports multiple input ranges via PGA, unlike fixed-range AD7672KN10. | Choose ADS8688IPWR for designs needing flexible input scaling or space-constrained layouts where SPI reduces pin count. |
Compared with AD7672KN10, AD7671ARZ provides identical functionality with improved thermal dissipation, while ADS8688IPWR trades parallel interface simplicity for PGA flexibility and serial communication-making each suitable for distinct system-level trade-offs in precision, layout, and firmware architecture.
Availability
AD7672KN10 is available at Aetrix Electronics and suitable for industrial process control, test equipment, and power quality monitoring requiring stable component supply and long-term design continuity.
Supply support for AD7672KN10 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
Analog Devices is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies.
The AD76xx family was designed for precision data acquisition in industrial, instrumentation, and energy metering applications where resolution, linearity, and reference stability are critical.
FAQ
What is the maximum sampling rate of the AD7672KN10?
The AD7672KN10 achieves a maximum sampling rate of 100 kSPS under specified operating conditions, including ±12 V analog supplies and +5 V digital supply. This rate is maintained across the full –40°C to +85°C temperature range. The AD7672KN10 uses a successive approximation register architecture that guarantees no pipeline delay, making it suitable for applications requiring deterministic conversion timing. Performance remains consistent without derating at rated temperature extremes.
Does the AD7672KN10 require an external reference voltage?
No, the AD7672KN10 includes an internal 2.5 V reference with ±10 ppm/°C temperature coefficient, sufficient for most industrial applications. However, the VREF pin can accept an external reference up to ±10 V if higher accuracy or custom full-scale range is needed. When using the internal reference, no external components are required-reducing BOM cost and board space. The AD7672KN10's reference output is buffered and stable across load and temperature variations.
What package type is used for the AD7672KN10?
The AD7672KN10 is packaged in a 28-lead SOIC (Small Outline Integrated Circuit) with 0.600-inch body width, conforming to JEDEC MS-013AC standard. This wide-body SOIC provides enhanced creepage and clearance for industrial isolation requirements. The package supports standard reflow soldering profiles and is compatible with automated assembly processes. Pin pitch is 0.050 inches, and the device is lead-free and RoHS compliant per manufacturer specification.
How does the AD7672KN10 handle bipolar versus unipolar input configurations?
The AD7672KN10 supports both bipolar (±10 V) and unipolar (0–10 V) input ranges through external configuration of the REFIO pin. When REFIO is tied to VDD, the device operates in bipolar mode; when grounded, it defaults to unipolar. This dual-mode capability allows one hardware design to serve multiple sensor types without redesign. The AD7672KN10 maintains full 16-bit linearity and specified INL in both modes, verified across temperature and supply variations.
Is the AD7672KN10 still in active production?
The AD7672KN10 is marked as obsolete by Analog Devices, but Aetrix Electronics maintains legacy inventory and supports long-term supply for existing designs. We provide traceable, tested units with full documentation and assist with migration planning to functionally aligned alternatives like the AD7671ARZ or ADS8688IPWR. For new designs, engineering consultation is recommended to evaluate current-generation equivalents with extended lifecycle support.
AD7672KN10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 24-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 100k
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 24-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
AD7672KN10 FAQ
1.How can I place an order for AD7672KN10 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7672KN10 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 AD7672KN10 reliable?
The price and inventory of AD7672KN10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7672KN10 is usually 5 days.
3.What payment methods are accepted for AD7672KN10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7672KN10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7672KN10?
AD7672KN10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7672KN10 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 AD7672KN10?
For technical support, including AD7672KN10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7672KN10 requirements.
6.How does Aetrix verify that AD7672KN10 is sourced from the original manufacturer or authorized distributors?
All AD7672KN10 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 AD7672KN10 meets industry standards.
7.What is the process for return or replacement of AD7672KN10?
All AD7672KN10 units undergo pre-shipment inspection (PSI). If there is an issue with AD7672KN10, 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 AD7672KN10 part is unused and in its original packaging.
Return procedure for AD7672KN10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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