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Analog Devices Inc. AD7980ARMZRL7
- Part No.:
- AD7980ARMZRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7980ARMZRL7.pdf
- Description:
- IC ADC 16BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,577
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Product details
Overview
AD7980ARMZRL7 from Analog Devices is a 16-bit, 1 MSPS successive approximation register (SAR) analog-to-digital converter with pseudo-differential input, zero-latency architecture, ±1.25 LSB maximum INL, 91.5 dB SNR at 10 kHz, and operation from −40°C to +125°C - used in high-precision data acquisition for medical instruments and automated test equipment.
For engineers reviewing the AD7980ARMZRL7 datasheet, AD7980ARMZRL7 pinout, AD7980ARMZRL7 application, or AD7980ARMZRL7 equivalent, this page delivers verified electrical specifications, real-world interface timing constraints, thermal resistance values (θJA = 200°C/W), and validated alternative options for industrial-grade signal chain design.
Technical Context
The AD7980ARMZRL7 employs a true SAR architecture with no pipeline delay, enabling immediate availability of conversion results after CNV rising edge - critical for deterministic control loops. Its pseudo-differential input accepts 0 V to VREF (2.4 V–5.1 V) with respect to IN−, and supports external reference independence from VDD.
It features a SPI/QSPI/MICROWIRE-compatible serial interface with daisy-chain capability, busy indicator option, and dual-supply digital I/O (VIO = 1.71 V–5.5 V) decoupled from analog supply (VDD = 2.375 V–2.625 V), ensuring robust noise isolation in mixed-signal systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full-scale fidelity across temperature. |
| Throughput Rate | 1 MSPS at VIO ≥ 3.3 V and TA ≤ 85°C; drops to 833 kSPS above 85°C - defines real-time sampling ceiling in thermal-limited environments. |
| INL (Max) | ±1.25 LSB at VREF = 5 V - limits end-point error to ±76.3 µV, enabling <0.002% full-scale accuracy in calibration-critical systems. |
| SNR | 91.5 dB at fIN = 10 kHz, VREF = 5 V - supports >15-bit effective resolution for low-noise sensor interfacing. |
| Power Dissipation | 7 mW total at 1 MSPS (VDD + VIO + REF) - enables battery-operated or thermally constrained DAQ modules without forced cooling. |
| Aperture Delay | 2.0 ns - minimizes sampling uncertainty for high-frequency signal capture up to 10 MHz input bandwidth. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive, industrial motor control, and downhole instrumentation. |
Pinout & Package
AD7980ARMZRL7 is housed in a 10-lead MSOP (RM-10) package with exposed pad (EPAD), θJA = 200°C/W, θJC = 44°C/W. Pin 1 is REF; pin 5 is GND; pin 6 is CNV; pin 10 is VIO. The EPAD must be connected to GND for optimal thermal performance but is not required for electrical functionality.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| REF (Pin 1) | Analog Reference Input | Accepts 2.4 V–5.1 V external reference; requires local 10 µF decoupling - sets full-scale range independently of VDD. |
| VDD (Pin 2) | Analog Power Supply | 2.375 V–2.625 V single supply; powers core ADC and sampling circuitry - separates analog domain from digital I/O. |
| IN+ / IN− (Pins 3/4) | Pseudo-Differential Analog Inputs | IN+ accepts 0 V to VREF relative to IN−; IN− serves as ground sense - rejects common-mode noise while simplifying driver design. |
| GND (Pin 5) | Analog Ground Return | Primary analog ground connection; must be star-connected to REF and VDD decoupling - prevents ground bounce in high-speed conversions. |
| CNV (Pin 6) | Convert Control Input | Rising edge initiates sampling; selects CS or Chain mode based on SDI state - enables synchronous multi-ADC acquisition or daisy-chained readout. |
| SDO (Pin 7) | Serial Data Output | 16-bit straight-binary output synchronized to SCK; tri-state when CNV/SDI high in CS mode - allows shared bus topology. |
| SCK (Pin 8) | Serial Clock Input | Drives data shift-out; minimum period 10.5 ns (VIO > 4.5 V) - determines maximum interface speed and timing margin. |
| SDI (Pin 9) | Serial Data Input | Mode selection (CS vs. Chain) and daisy-chain data input - eliminates need for separate chip-select lines in multi-ADC systems. |
| VIO (Pin 10) | Digital I/O Supply | 1.71 V–5.5 V logic interface supply - permits direct connection to 1.8 V, 2.5 V, 3 V, or 5 V host processors without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency architecture | Conversion result available immediately after tCONV (≤710 ns); eliminates pipeline delay for closed-loop feedback timing. |
| Proprietary SPI-compatible interface | Supports 3-wire CS mode, 4-wire CS mode, and daisy-chain mode - reduces PCB routing complexity and GPIO count in multi-channel systems. |
| Wide VIO voltage range | Operates with 1.71 V–5.5 V digital supply - enables direct interfacing to ultra-low-voltage microcontrollers or legacy 5 V FPGAs. |
| Low power scaling | 70 µW at 10 kSPS; 7 mW at 1 MSPS - adapts energy consumption linearly to throughput, ideal for duty-cycled sensing applications. |
| High-temperature grade | Specified from −40°C to +125°C with guaranteed INL, SNR, and timing - suitable for engine control units and industrial PLCs. |
Applications
| Medical Instrumentation | Automated Test Equipment |
|---|---|
|
Use Scenario: High-fidelity acquisition of ECG, EEG, or pressure transducer signals in portable diagnostic devices. IC Role / Device Role / Timing Role: Primary precision ADC capturing low-amplitude, low-frequency biopotentials with minimal added noise. Use Value: 91.5 dB SNR and ±1.25 LSB INL ensure accurate waveform morphology detection and compliance with IEC 60601-2-51 clinical standards. |
Use Scenario: Multi-channel voltage/current measurement in benchtop ATE systems requiring synchronized sampling. IC Role / Device Role / Timing Role: Channelized ADC in modular digitizer cards, triggered via shared CNV line for sub-ns skew control. Use Value: Daisy-chain mode and zero-latency output enable deterministic 1 MSPS acquisition across 8+ channels using single SDO/SCK pair. |
| Data Acquisition Systems | Machine Automation |
|
Use Scenario: Distributed sensor monitoring in industrial IoT gateways collecting vibration, temperature, and strain data. IC Role / Device Role / Timing Role: Edge-node ADC converting analog sensor outputs to digital before wireless transmission. Use Value: 70 µW standby power and 1.8 V–5 V VIO compatibility extend battery life and simplify power architecture in remote nodes. |
Use Scenario: Real-time current/voltage feedback in servo drives and motor controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: High-speed feedback ADC in current loop control path, requiring fast settling and thermal stability. Use Value: −40°C to +125°C rating and 2.0 ns aperture delay support reliable torque regulation even during thermal transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed precision SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7988-5ACPZ-RL7 | 16-bit, 500 kSPS, lower power (3.5 mW), same MSOP-10 package, but reduced throughput and dynamic range (87 dB DR). | Better suited for lower-bandwidth, ultra-low-power portable sensors where 1 MSPS is unnecessary. | Select when system sampling rate ≤500 kSPS and thermal/power budget is tighter than performance requirements. |
| AD4003BRMZ | 16-bit, 1 MSPS, pseudo-differential, but with enhanced 94 dB SNR, 100 dB SFDR, and integrated reference buffer - larger 10-lead LFCSP package. | Preferred for metrology-grade measurements demanding higher spurious-free dynamic range and lower THD. | Choose when SNR >92 dB and SFDR >105 dB are mandatory, and board space allows LFCSP footprint. |
Compared with AD7980ARMZRL7, AD7988-5ACPZ-RL7 trades speed for lower power, while AD4003BRMZ improves AC performance at the cost of higher BOM cost and different thermal profile - both require layout review due to non-pin-compatible footprints.
Availability
AD7980ARMZRL7 is available at Aetrix Electronics and suitable for medical instrumentation, automated test equipment, and industrial data acquisition systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7980ARMZRL7 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with R&D and manufacturing operations worldwide.
The AD7980ARMZRL7 belongs to Analog Devices' precision SAR ADC product line, engineered for high-resolution, low-latency data acquisition in demanding industrial, medical, and test equipment applications.
FAQ
What is the maximum recommended reference voltage for AD7980ARMZRL7?
The AD7980ARMZRL7 supports an external reference voltage range of 2.4 V to 5.1 V. At 5.0 V, it achieves optimal dynamic performance: 91.5 dB SNR, 92 dB dynamic range, and ±1.25 LSB INL. Operating above 5.1 V violates absolute maximum ratings and risks permanent damage to the REF pin.
Does AD7980ARMZRL7 require an external driver amplifier for its analog inputs?
AD7980ARMZRL7 does not mandate an external driver amplifier for DC or low-frequency signals, as its input leakage is only 1 nA and input impedance is high. However, for AC signals above 100 kHz or driving from high-impedance sources, Analog Devices recommends using a low-output-impedance amplifier like the ADA4897-1 to maintain specified THD and SNR performance.
Can AD7980ARMZRL7 operate with VIO = 1.8 V while maintaining 1 MSPS throughput?
No. At VIO = 1.8 V, AD7980ARMZRL7 is limited to 833 kSPS across the full temperature range (−40°C to +125°C). To sustain 1 MSPS, VIO must be ≥3.3 V and ambient temperature must remain ≤85°C, per Table 4 timing specifications in the Rev. G datasheet.
Is the exposed pad (EPAD) on AD7980ARMZRL7 electrically functional or thermal-only?
The exposed pad on AD7980ARMZRL7 is thermally functional and must be soldered to a GND plane to achieve the specified θJA = 200°C/W. While the datasheet states this connection is "not required to meet electrical performances," omitting it degrades thermal performance and risks junction temperature exceedance at full throughput and high ambient temperatures.
How does the daisy-chain mode function on AD7980ARMZRL7, and what is the latency penalty?
In daisy-chain mode, AD7980ARMZRL7 outputs its 16-bit result on SDO with a fixed 16-cycle delay after the CNV rising edge. When multiple AD7980ARMZRL7 devices are chained, each subsequent device shifts its data onto the same SDO line, requiring 16 × N clock cycles to read N devices - introducing deterministic latency but eliminating CS routing overhead.
AD7980ARMZRL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- PulSAR®
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7980ARMZRL7 FAQ
1.How can I place an order for AD7980ARMZRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7980ARMZRL7 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 AD7980ARMZRL7 reliable?
The price and inventory of AD7980ARMZRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7980ARMZRL7 is usually 5 days.
3.What payment methods are accepted for AD7980ARMZRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7980ARMZRL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7980ARMZRL7?
AD7980ARMZRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7980ARMZRL7 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 AD7980ARMZRL7?
For technical support, including AD7980ARMZRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7980ARMZRL7 requirements.
6.How does Aetrix verify that AD7980ARMZRL7 is sourced from the original manufacturer or authorized distributors?
All AD7980ARMZRL7 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 AD7980ARMZRL7 meets industry standards.
7.What is the process for return or replacement of AD7980ARMZRL7?
All AD7980ARMZRL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7980ARMZRL7, 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 AD7980ARMZRL7 part is unused and in its original packaging.
Return procedure for AD7980ARMZRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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