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Analog Devices Inc. AD7980ACPZ-RL7
- Part No.:
- AD7980ACPZ-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD7980ACPZ-RL7.pdf
- Description:
- IC ADC 16BIT SAR 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,708
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Product details
Overview
AD7980ACPZ-RL7 from Analog Devices is a 16-bit, 1 MSPS successive approximation register (SAR) analog-to-digital converter with pseudo-differential input, 0 V to VREF range (2.5 V–5 V), ±0.6 LSB typical INL, 91.5 dB SNR at 10 kHz, and zero-latency architecture-used in high-precision data acquisition systems requiring deterministic timing and minimal power.
For engineers reviewing the AD7980ACPZ-RL7 datasheet, AD7980ACPZ-RL7 pinout, AD7980ACPZ-RL7 application, or AD7980ACPZ-RL7 equivalent, this page delivers verified technical context, real-world interface behavior, thermal and timing constraints for 125°C operation, and validated alternative options for precision SAR ADC selection.
Technical Context
The AD7980ACPZ-RL7 implements a single-supply, 2.5 V VDD SAR architecture with external reference scaling (2.4 V–5.1 V), enabling flexible full-scale adjustment without supply dependency. Its acquisition phase relies on a switched-capacitor network referenced to IN−, with 290 ns acquisition time and 500 ns conversion latency.
It supports SPI/QSPI/MICROWIRE-compatible 3- or 4-wire serial interfaces via CNV, SCK, SDI, and SDO, with daisy-chain capability and optional busy indicator. Digital I/O operates independently at 1.71 V–5.5 V (VIO), decoupling logic voltage from analog supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit-guarantees no missing codes across full temperature range (−40°C to +125°C). |
| Throughput Rate | 1 MSPS at VIO ≥ 3.3 V and TA ≤ 85°C-enables real-time sampling of fast transients in industrial control loops. |
| INL (Max) | ±1.25 LSB at VREF = 5 V-limits end-point error to ±76.3 µV, critical for calibrated sensor front-ends. |
| SNR | 91.5 dB at fIN = 10 kHz, VREF = 5 V-supports >15-bit effective resolution for low-noise signal chains. |
| Power Dissipation | 7 mW total at 1 MSPS (B grade)-enables high-speed acquisition in thermally constrained embedded modules. |
| Analog Input Range | 0 V to VREF (2.5 V–5 V), pseudo-differential-simplifies anti-aliasing filter design by eliminating common-mode rejection requirements. |
| Aperture Delay | 2.0 ns-minimizes sampling jitter impact on high-frequency signal fidelity (e.g., >100 kHz sinusoids). |
Pinout & Package
AD7980ACPZ-RL7 is housed in a 10-lead, 3 mm × 3 mm LFCSP package with exposed pad (EPAD) that must be connected to GND for thermal performance but is not required for electrical functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF | Analog reference input | Accepts 2.4 V–5.1 V external reference; requires local 10 µF decoupling for stable full-scale accuracy. |
| VDD | Analog power supply | 2.375 V–2.625 V single supply; powers internal SAR core and sampling capacitor array. |
| IN+, IN− | Pseudo-differential analog inputs | IN+ accepts 0 V to VREF relative to IN−; IN− serves as ground sense point-not tied to system GND. |
| GND | Power ground | Common return for VDD and REF; must be low-impedance to minimize noise coupling into analog path. |
| CNV | Convert trigger / interface mode select | Rising edge initiates conversion; logic level at CNV rising edge selects CS or chain mode. |
| SDO | Serial data output | Outputs 16-bit straight-binary result synchronized to SCK; tri-stated when CNV/SDI high in CS mode. |
| SCK | Serial clock input | Drives data shift-out; minimum period 10.5 ns (VIO > 4.5 V); defines maximum throughput in chain mode. |
| SDI | Serial data input / mode control | Low at CNV rising edge enables daisy-chain; high enables CS mode with optional busy indication. |
| VIO | Digital I/O supply | 1.71 V–5.5 V independent logic rail-allows direct interfacing with 1.8 V, 2.5 V, 3 V, or 5 V microcontrollers. |
| EPAD | Exposed thermal pad | Must be soldered to PCB GND plane to achieve θJA = 44°C/W; improves thermal stability at 125°C ambient. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency architecture | Conversion result available immediately after tCONV (≤710 ns), eliminating pipeline delay in closed-loop feedback systems. |
| Proprietary SPI-compatible interface | Supports 3-wire CS mode, 4-wire CS mode, and daisy-chain mode-reduces GPIO count and PCB routing complexity in multi-channel DAQ. |
| Wide VIO voltage range | 1.71 V–5.5 V digital interface-enables direct connection to mixed-voltage SoCs without level shifters. |
| High dynamic range | 92 dB at VREF = 5 V-preserves small-signal integrity in wide-dynamic-range applications like medical ECG amplifiers. |
| Low power scaling | 70 µW at 10 kSPS-extends battery life in portable instrumentation while maintaining 16-bit linearity. |
Applications
| Automated Test Equipment (ATE) | Data Acquisition Systems |
|---|---|
Use Scenario: High-speed parametric testing of semiconductor devices requiring sub-LSB repeatability across temperature. IC Role / Device Role / Timing Role: Primary digitizer capturing transient waveforms during device characterization, synchronized to test pattern generator via CNV. Use Value: 1 MSPS throughput and ±0.6 LSB INL ensure pass/fail decisions meet ATE metrology standards without post-processing correction. |
Use Scenario: Modular rack-mounted DAQ units acquiring synchronized voltage/current/temperature channels in industrial PLCs. IC Role / Device Role / Timing Role: Precision front-end ADC per channel, interfaced to FPGA over daisy-chained SPI to minimize interconnect count. Use Value: Daisy-chain support and VIO independence allow uniform 16-bit sampling across mixed-voltage backplane architectures. |
| Medical Instruments | Machine Automation |
Use Scenario: Portable ultrasound beamformer receiving analog RF echo signals before digital beamforming. IC Role / Device Role / Timing Role: High-SNR digitizer for baseband IF signals, operating at 1 MSPS with 91.5 dB SNR to preserve tissue contrast resolution. Use Value: 92 dB dynamic range at 5 V reference enables detection of weak echoes amid strong near-field reflections. |
Use Scenario: Real-time motor current sensing in servo drives where torque ripple must be suppressed below 0.1%. IC Role / Device Role / Timing Role: Isolated current shunt monitor feeding AD7980ACPZ-RL7 for closed-loop field-oriented control (FOC) execution. Use Value: 290 ns acquisition time and zero-latency output enable <1 µs current loop update-critical for >20 kHz PWM switching. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7988-5ACPZ-RL7 | 500 kSPS max throughput, lower power (3.5 mW at 500 kSPS), same 10-lead LFCSP package and pinout. | Better suited for lower-bandwidth, ultra-low-power portable instruments where 1 MSPS is unnecessary. | Select AD7988-5ACPZ-RL7 when system sampling rate ≤500 kSPS and thermal budget is tighter than AD7980ACPZ-RL7's 7 mW. |
| AD4003BRMZ-RL7 | 1 MSPS, 16-bit, but with true differential input, higher SNR (95 dB), and integrated reference buffer; uses 10-lead MSOP package. | Required where common-mode noise rejection is essential (e.g., motor phase current sensing with high dv/dt). | Choose AD4003BRMZ-RL7 only if differential input topology and reference buffering are mandatory-note non-pin-compatible MSOP footprint. |
Compared with AD7980ACPZ-RL7, AD7988-5ACPZ-RL7 trades speed for lower power and identical layout, while AD4003BRMZ-RL7 adds differential input and reference buffering at the cost of package incompatibility and higher BOM complexity.
Availability
AD7980ACPZ-RL7 is available at Aetrix Electronics and suitable for automated test equipment, medical instrumentation, and industrial data acquisition systems requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.
Supply support for AD7980ACPZ-RL7 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D focused on precision measurement and signal integrity.
The AD7980ACPZ-RL7 belongs to Analog Devices' PulSAR® family of precision SAR ADCs, engineered for high-speed, low-power, and high-accuracy data acquisition in harsh industrial and medical environments.
FAQ
What is the maximum operating temperature for AD7980ACPZ-RL7?
The AD7980ACPZ-RL7 is fully specified from −40°C to +125°C ambient temperature. Its LFCSP package with EPAD-to-GND connection achieves θJC = 44°C/W, enabling reliable operation at maximum junction temperature (150°C) under continuous 1 MSPS throughput in sealed enclosures.
Does AD7980ACPZ-RL7 require an external reference voltage?
Yes, AD7980ACPZ-RL7 requires an external reference voltage applied to the REF pin, which must be between 2.4 V and 5.1 V. The device does not include an internal reference; accuracy and noise performance directly depend on the stability and low-noise characteristics of the external reference source.
Can AD7980ACPZ-RL7 interface directly with a 1.8 V microcontroller?
Yes, AD7980ACPZ-RL7 supports 1.8 V logic levels via its independent VIO supply pin (1.71 V–5.5 V). When VIO = 1.8 V, digital inputs (CNV, SCK, SDI) accept standard 1.8 V logic thresholds, and SDO outputs are compatible with 1.8 V receivers-no level-shifting circuitry is needed.
What is the purpose of the IN− pin on AD7980ACPZ-RL7?
The IN− pin on AD7980ACPZ-RL7 serves as the ground sense reference for the pseudo-differential input structure. It is not tied to system GND but rather connected to the analog ground plane or remote sense point near the signal source to reject local ground bounce and improve common-mode rejection during acquisition.
How does the daisy-chain mode work on AD7980ACPZ-RL7?
In daisy-chain mode, AD7980ACPZ-RL7 uses SDI as both mode selector (low at CNV rising edge) and data input. Conversion results from multiple AD7980ACPZ-RL7 devices are serialized onto a single SDO line, with each device delaying its output by 16 SCK cycles-enabling synchronized multi-channel sampling with minimal SPI bus overhead.
AD7980ACPZ-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI, DSP
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.375V ~ 2.625V
- Voltage - Supply, Digital:
- 2.375V ~ 2.625V
- Features:
- -
- Operating Temperature:
- -40°C ~ 125°C
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7980ACPZ-RL7 FAQ
1.How can I place an order for AD7980ACPZ-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7980ACPZ-RL7 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 AD7980ACPZ-RL7 reliable?
The price and inventory of AD7980ACPZ-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7980ACPZ-RL7 is usually 5 days.
3.What payment methods are accepted for AD7980ACPZ-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7980ACPZ-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7980ACPZ-RL7?
AD7980ACPZ-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7980ACPZ-RL7 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 AD7980ACPZ-RL7?
For technical support, including AD7980ACPZ-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7980ACPZ-RL7 requirements.
6.How does Aetrix verify that AD7980ACPZ-RL7 is sourced from the original manufacturer or authorized distributors?
All AD7980ACPZ-RL7 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 AD7980ACPZ-RL7 meets industry standards.
7.What is the process for return or replacement of AD7980ACPZ-RL7?
All AD7980ACPZ-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7980ACPZ-RL7, 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 AD7980ACPZ-RL7 part is unused and in its original packaging.
Return procedure for AD7980ACPZ-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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