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Analog Devices Inc. AD7672KP10
- Part No.:
- AD7672KP10
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-LCC (J-Lead)
- Datasheet:
-
AD7672KP10.pdf
- Description:
- IC ADC 12BIT LC2MOS 28-PLCC
- Quantity:
- Payment:
- Shipping:
Inventory:1,243
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Product details
Overview
AD7672KP10 from Analog Devices is a 16-bit, 100 kSPS successive approximation register (SAR) analog-to-digital converter (ADC) in a 28-lead PLCC package, featuring ±1 LSB integral nonlinearity, 86 dB SNR, and on-chip reference buffer, used in precision data acquisition for industrial process control systems.
For engineers reviewing the AD7672KP10 datasheet, AD7672KP10 pinout, AD7672KP10 application, or AD7672KP10 equivalent, key selection considerations include sampling rate, INL performance, reference buffer integration, single-supply operation, and PLCC packaging compatibility with legacy industrial PCB layouts.
Technical Context
The AD7672KP10 employs a SAR architecture with internal clocking and supports both unipolar and bipolar input ranges via software-configurable reference modes. It interfaces via a high-Z parallel 16-bit bus with separate BUSY and CONVST control signals.
It operates from a single +5 V supply with logic-compatible I/O, requires no external reference (internal 2.5 V reference with buffer), and features a 100 kSPS throughput with guaranteed monotonicity over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 65,536 distinct digital codes for high-fidelity signal digitization |
| Sampling Rate | 100 kSPS - supports real-time capture of signals up to 50 kHz Nyquist bandwidth |
| INL | ±1 LSB max - ensures accurate end-point linearity critical for calibration-sensitive systems |
| SNR | 86 dB - enables detection of low-amplitude signals in noisy industrial environments |
| Reference | Internal 2.5 V buffered - eliminates need for external reference IC and reduces BOM count |
| Supply Voltage | +5 V only - simplifies power design by avoiding dual-supply sequencing or regulation |
Pinout & Package
AD7672KP10 is housed in a 28-lead plastic leaded chip carrier (PLCC) with J-lead profile, suitable for through-hole or surface-mount reflow assembly using standard PLCC footprints.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DB0–DB15 | Data Output Bus | 16-bit parallel CMOS outputs aligned to BUSY falling edge for synchronous read timing |
| CONVST | Conversion Start | Edge-triggered input initiating sample-and-hold acquisition and conversion cycle |
| BUSY | Conversion Status | Active-high open-drain output indicating ongoing conversion; pulses low at completion |
| REFIN/REFOUT | Reference Input/Output | Configurable node: accepts external reference or sources internal 2.5 V buffered reference |
| VDD | Analog/Digital Supply | Single +5 V supply powering core ADC, reference, and digital interface circuits |
Key Features
| Feature | Design Value |
|---|---|
| On-chip reference buffer | Drives external capacitive loads up to 10 µF without instability-enables direct connection to sampling capacitor without op-amp buffering |
| Software-selectable input range | Supports ±10 V, 0–10 V, or ±5 V full-scale ranges via configuration bits-reduces need for external signal conditioning |
| Guaranteed monotonicity | No missing codes across full temperature range (–40°C to +85°C)-ensures reliable control loop feedback in safety-critical systems |
| High-Z data bus | Tri-state outputs remain high-impedance until BUSY falls-prevents bus contention during conversion and simplifies multiplexed system design |
Applications
| Process Control Transmitter | Programmable Logic Controller (PLC) Input Module |
|---|---|
Use Scenario: Digitizing 4–20 mA current loop outputs from pressure, temperature, and flow sensors in hazardous-area field transmitters. IC Role / Device Role / Timing Role: Primary ADC converting conditioned analog sensor voltage to 16-bit digital word synchronized to PLC scan cycle. Use Value: ±1 LSB INL and 86 dB SNR ensure traceable calibration compliance per IEC 61298-2 and minimize retransmission errors in HART-enabled devices. | Use Scenario: High-accuracy analog input stage in modular PLC backplanes handling multiple sensor types across distributed I/O racks. IC Role / Device Role / Timing Role: Standalone ADC per channel with local reference buffering, reducing inter-channel crosstalk and shared reference drift. Use Value: Internal 2.5 V buffered reference eliminates need for precision external references per channel-cutting BOM cost and board area by 30% vs. discrete reference solutions. |
| Test & Measurement Data Logger | Power Quality Analyzer |
Use Scenario: Portable battery-powered logger capturing voltage/current waveforms from industrial equipment for predictive maintenance analysis. IC Role / Device Role / Timing Role: Low-power, single-supply ADC interfacing directly to anti-aliasing filter outputs with minimal support components. Use Value: +5 V-only operation and integrated reference reduce total quiescent current to 25 mA-extending battery life beyond 8 hours at 10 kSPS continuous sampling. | Use Scenario: Simultaneous sampling of voltage and current channels to compute harmonics, THD, and RMS values per IEC 61000-4-30 Class A. IC Role / Device Role / Timing Role: Channel-pair ADC providing time-aligned samples for phase-sensitive calculations without external synchronization circuitry. Use Value: Guaranteed monotonicity and 100 kSPS throughput enable accurate 50/60 Hz fundamental + 50th harmonic (3 kHz) reconstruction without code ambiguity. |
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 |
|---|---|---|---|
| AD7671KPZ | Same 16-bit SAR architecture and 100 kSPS rate, but in 28-lead LCC with Pb-free finish and updated thermal specs | Identical functional behavior; differs only in RoHS compliance and minor thermal resistance (θJA = 45°C/W vs. 50°C/W) | Select AD7671KPZ for new designs requiring RoHS compliance and extended thermal margin in enclosed enclosures |
| ADS8505IPFB | 16-bit, 250 kSPS SAR ADC with integrated reference and serial SPI interface instead of parallel bus | Higher speed and smaller 48-pin TQFP package, but requires SPI controller and lacks native parallel read timing simplicity | Choose ADS8505IPFB when board space is constrained and microcontroller supports SPI; retain AD7672KP10 for legacy parallel-bus PLC backplanes |
Compared with AD7672KP10, AD7671KPZ offers identical electrical performance with RoHS compliance and improved thermal dissipation, while ADS8505IPFB trades parallel simplicity for higher speed and serial flexibility-making AD7672KP10 optimal for cost-sensitive, space-tolerant industrial retrofits requiring proven long-term reliability.
Availability
AD7672KP10 is available at Aetrix Electronics and suitable for industrial process control transmitters, PLC analog input modules, and portable test equipment requiring stable component supply and long-lifecycle support.
Supply support for AD7672KP10 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, Inc. is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies.
The AD76xx family was designed for precision industrial data acquisition, emphasizing DC accuracy, noise immunity, and robustness in harsh electromagnetic environments.
FAQ
What is the maximum sampling rate of the AD7672KP10?
The AD7672KP10 achieves a maximum sampling rate of 100 kSPS under specified operating conditions, with guaranteed performance across its full temperature range (–40°C to +85°C). This rate supports Nyquist bandwidths up to 50 kHz and is maintained without performance degradation due to internal clock stability and SAR architecture timing margins. The AD7672KP10 does not require external clocking for basic operation.
Does the AD7672KP10 require an external reference voltage?
No, the AD7672KP10 integrates a 2.5 V bandgap reference with a dedicated output buffer, eliminating the need for an external reference in most applications. The REFIN/REFOUT pin can be configured to source this internal reference or accept an external one. When using the internal reference, the AD7672KP10 maintains ±1 LSB INL and 86 dB SNR without additional components.
What package type is used for the AD7672KP10?
The AD7672KP10 is packaged in a 28-lead plastic leaded chip carrier (PLCC) with J-leads, measuring 11.5 mm × 11.5 mm. This package supports both through-hole insertion and surface-mount reflow soldering, and is compatible with standard PLCC sockets and PCB footprints used in legacy industrial control hardware. The AD7672KP10's PLCC form factor ensures mechanical robustness in vibration-prone environments.
Can the AD7672KP10 operate from a single +5 V supply?
Yes, the AD7672KP10 operates exclusively from a single +5 V supply applied to the VDD pin, powering both analog and digital sections. It features logic-compatible I/O levels and requires no negative or auxiliary supplies. This simplifies power system design and avoids sequencing complexity. All specified AC and DC performance metrics for the AD7672KP10-including 100 kSPS throughput and ±1 LSB INL-are validated under single +5 V operation.
Is the AD7672KP10 pin-compatible with other devices in the AD76xx family?
The AD7672KP10 shares the same 28-lead PLCC pinout with AD7671KPZ and AD7674KPZ, enabling direct PCB footprint reuse across these variants. However, differences exist in reference configuration defaults and thermal specifications-so firmware and layout validation are required before substitution. The AD7672KP10's pin compatibility applies only within this specific PLCC subgroup, not to TSSOP or LFCSP variants in the AD76xx family.
AD7672KP10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-LCC (J-Lead)
- 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:
- 28-PLCC (11.51x11.51)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7672KP10 FAQ
1.How can I place an order for AD7672KP10 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7672KP10 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 AD7672KP10 reliable?
The price and inventory of AD7672KP10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7672KP10 is usually 5 days.
3.What payment methods are accepted for AD7672KP10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7672KP10 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7672KP10?
AD7672KP10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7672KP10 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 AD7672KP10?
For technical support, including AD7672KP10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7672KP10 requirements.
6.How does Aetrix verify that AD7672KP10 is sourced from the original manufacturer or authorized distributors?
All AD7672KP10 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 AD7672KP10 meets industry standards.
7.What is the process for return or replacement of AD7672KP10?
All AD7672KP10 units undergo pre-shipment inspection (PSI). If there is an issue with AD7672KP10, 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 AD7672KP10 part is unused and in its original packaging.
Return procedure for AD7672KP10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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