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Analog Devices Inc. AD7980BRMZRL7
- Part No.:
- AD7980BRMZRL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7980BRMZRL7.pdf
- Description:
- IC ADC 16BIT SAR 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:838
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Product details
Overview
AD7980BRMZRL7 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 max INL, 91.5 dB SNR at 10 kHz (VREF = 5 V), and operation from −40°C to +125°C - used in high-precision data acquisition systems requiring deterministic timing and low power.
For engineers reviewing the AD7980BRMZRL7 datasheet, AD7980BRMZRL7 pinout, AD7980BRMZRL7 application, or AD7980BRMZRL7 equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated pin functions, application-specific implementation insights, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The AD7980BRMZRL7 employs a true SAR architecture with no pipeline delay, delivering conversion results immediately after completion - critical for closed-loop control and real-time monitoring. Its pseudo-differential input accepts 0 V to VREF (2.4 V–5.1 V) across IN+ and IN−, referenced to system ground, enabling rejection of common-mode noise without requiring matched driver amplifiers.
It features a SPI/QSPI/MICROWIRE-/DSP-compatible serial interface with configurable CS or daisy-chain modes, supported by independent VIO (1.71 V–5.5 V) for logic-level flexibility. Power scales linearly with throughput: 4 mW from VDD alone at 1 MSPS, dropping to 70 µW at 10 kSPS - optimized for battery-powered or thermally constrained instrumentation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit with no missing codes - guarantees monotonicity and full-scale fidelity for precision measurement applications. |
| Throughput Rate | 1 MSPS at VIO ≥ 3.3 V and TA ≤ 85°C; reduced to 833 kSPS above 85°C - defines maximum sampling rate under thermal or voltage constraints. |
| INL (Max) | ±1.25 LSB at VREF = 5 V - limits absolute accuracy error to ±76.3 µV over full scale, critical for calibration-critical systems. |
| SNR | 91.5 dB at fIN = 10 kHz, VREF = 5 V - enables resolution of signals buried ~29,000× below full scale in narrowband applications. |
| Dynamic Range | 92 dB at VREF = 5 V - supports >15-bit effective noise-free resolution when inputs are shorted, essential for low-level signal capture. |
| Power (1 MSPS) | 7 mW total (4 mW VDD + 1.3 mW VIO + 1.7 mW REF) - allows integration into space- and thermal-constrained modules without active cooling. |
| Operating Temp | −40°C to +125°C - qualified for under-hood automotive sensors, industrial motor drives, and downhole equipment. |
Pinout & Package
AD7980BRMZRL7 is available in a 10-lead MSOP (RM-10) package with exposed pad, compatible with standard surface-mount reflow processes. Thermal resistance θJA = 200°C/W (JEDEC 2S2P board), requiring minimal PCB copper area for thermal management in high-reliability designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1: REF | Analog reference input | Accepts 2.4 V–5.1 V external reference; must be decoupled with 10 µF capacitor - sets full-scale range and directly impacts gain accuracy and SNR. |
| 2: VDD | Analog supply | 2.375 V–2.625 V single supply; powers core ADC and sampling circuitry - low-noise regulation required to avoid introducing quantization noise. |
| 3: IN+ | Pseudo-differential analog input | Voltage measured relative to IN−; range = 0 V to VREF - enables ratiometric sensing with external transducers or bridge circuits. |
| 4: IN− | Analog ground sense | Reference point for IN+; connects to analog ground plane or remote sensor ground - critical for common-mode rejection and offset stability. |
| 5: GND | Power ground | Common return for VDD and REF; must be star-connected to minimize ground bounce during conversion. |
| 6: CNV | Convert trigger / interface mode select | Rising edge initiates sampling; logic level on SDI at CNV edge selects CS or daisy-chain mode - enables flexible multi-ADC synchronization. |
| 7: SDO | Serial data output | 16-bit straight-binary output synchronized to SCK; tri-state controlled by CNV/SDI in CS mode - supports shared bus architectures. |
| 8: SCK | Serial clock input | Drives data readout; minimum period = 10.5 ns (VIO > 4.5 V) - determines maximum achievable interface speed and timing margin. |
| 9: SDI | Serial data input / mode control | Configures interface mode (CS vs. chain); in chain mode, relays upstream ADC data with 16-cycle delay - enables scalable channel expansion. |
| 10: VIO | Digital I/O supply | 1.71 V–5.5 V logic interface supply; decouples digital noise from analog section - permits direct interfacing with 1.8 V FPGAs or 5 V microcontrollers. |
Key Features
| Feature | Design Value |
|---|---|
| Zero-latency architecture | Conversion result available immediately after tCONV (≤710 ns); eliminates pipeline delay uncertainty for time-critical feedback loops. |
| Pseudo-differential input | IN+/IN− topology rejects common-mode noise up to 60 dB at 100 kHz without requiring matched driver stages or differential amplifiers. |
| Wide VIO range (1.71 V–5.5 V) | Supports direct connection to diverse host processors (1.8 V FPGA, 3.3 V MCU, 5 V DSP) without level-shifting circuitry - reduces BOM count and layout complexity. |
| Daisy-chain capability | Multiple AD7980BRMZRL7 devices share one SDO line using SDI as data-in; eliminates dedicated serial lines per ADC in multi-channel systems. |
| Low power scaling | Energy per conversion = 7.0 nJ/sample - enables ultra-low-power wake-up sampling in energy-harvesting sensor nodes. |
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 stress testing with deterministic 1 MSPS sampling. Use Value: ±1.25 LSB INL and 91.5 dB SNR ensure pass/fail decisions meet ATE class metrology standards without post-processing correction. |
Use Scenario: Modular rack-mounted DAQ units acquiring synchronized voltage/current/temperature channels in lab and field environments. IC Role / Device Role / Timing Role: Channel-isolated ADC per input module, interfaced via daisy-chained SPI to reduce controller pin count and PCB routing density. Use Value: Daisy-chain support and VIO flexibility allow uniform hardware design across 1.8 V FPGA-based and 5 V microcontroller-based platforms. |
| Medical Instruments | Machine Automation |
Use Scenario: Portable ECG and patient monitors requiring low power, high SNR, and extended temperature operation for clinical reliability. IC Role / Device Role / Timing Role: Front-end ADC for biopotential signal conditioning, operating from 2.5 V supply with 70 µW standby power at 10 kSPS. Use Value: 125°C rating and 70 µW low-power mode enable fanless enclosure design while maintaining diagnostic-grade signal integrity. |
Use Scenario: Real-time position/speed feedback in servo drives and CNC motion controllers where jitter and latency impact positioning accuracy. IC Role / Device Role / Timing Role: Resolver-to-digital interface ADC sampling motor encoder outputs with zero-latency response to minimize control loop phase lag. Use Value: Zero-latency architecture ensures sampled position data reflects true rotor angle at CNV edge - critical for <1 µs timing-critical commutation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-precision SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7988-5BRMZ | 16-bit, 500 kSPS, lower power (3.5 mW at 500 kSPS), same 10-lead MSOP package and pinout. | Targeted at portable instrumentation where throughput can be halved to save power and heat; lacks 1 MSPS capability. | Select when system sampling requirement is ≤500 kSPS and thermal budget is tighter than AD7980BRMZRL7's 7 mW. |
| AD4003BRMZ | 16-bit, 1 MSPS, but with true differential input, higher SNR (95 dB), and integrated reference buffer - requires different analog front-end design. | Suitable for applications demanding superior CMRR (>100 dB) and DC accuracy (±0.5 ppm/°C drift), such as precision weigh scales and strain gauge bridges. | Choose when differential signaling, lower drift, or buffered reference is mandatory - expect layout and driver redesign versus AD7980BRMZRL7. |
Compared with AD7980BRMZRL7, AD7988-5BRMZ trades throughput for lower power in portable use cases, while AD4003BRMZ upgrades performance and interface architecture at the cost of increased design complexity and BOM cost - neither is pin-compatible, but both serve adjacent precision measurement roles.
Availability
AD7980BRMZRL7 is available at Aetrix Electronics and suitable for automated test equipment, medical instruments, and machine automation requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for safety-critical deployments.
Supply support for AD7980BRMZRL7 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, serving industrial, automotive, communications, and healthcare markets.
The AD7980BRMZRL7 belongs to Analog Devices' precision SAR ADC product line, designed specifically for high-speed, low-power, wide-temperature data acquisition in mission-critical instrumentation where accuracy, reliability, and deterministic timing are non-negotiable.
FAQ
What is the maximum operating temperature for the AD7980BRMZRL7?
The AD7980BRMZRL7 is fully specified from −40°C to +125°C, with all electrical parameters guaranteed across that range. Its thermal resistance (θJA = 200°C/W) and internal design enable reliable operation in under-hood automotive, industrial motor control, and downhole sensing applications without derating.
Does the AD7980BRMZRL7 require an external reference voltage?
Yes, the AD7980BRMZRL7 requires an external reference voltage applied to the REF pin, which must be between 2.4 V and 5.1 V. The reference directly sets the full-scale input range (0 V to VREF) and influences SNR, INL, and gain error - a low-noise, stable reference such as the ADR4550 is recommended for optimal performance.
Can the AD7980BRMZRL7 interface directly with a 1.8 V microcontroller?
Yes, the AD7980BRMZRL7 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 meet VIH/VIL thresholds, and SDO output swings rail-to-rail - enabling direct connection to 1.8 V FPGAs or microcontrollers without level shifters.
What is the significance of the "zero latency" architecture in the AD7980BRMZRL7?
Zero latency means the AD7980BRMZRL7 delivers the conversion result immediately after the conversion completes - with no pipeline delay or output register staging. This enables precise time alignment between the CNV edge and data availability (tCONV ≤ 710 ns), making it ideal for real-time control loops and time-of-flight measurements where deterministic timing is essential.
Is the AD7980BRMZRL7 pin-compatible with other 10-lead SAR ADCs in Analog Devices' portfolio?
No, the AD7980BRMZRL7 has a unique pinout optimized for its pseudo-differential input and dual-supply interface (VDD + VIO). While packages like the 10-lead MSOP are shared across several parts (e.g., AD7988-5, AD7687), pin assignments differ - particularly for REF, CNV, and SDI functions - so PCB layout is not interchangeable without redesign.
AD7980BRMZRL7 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:
- -
AD7980BRMZRL7 FAQ
1.How can I place an order for AD7980BRMZRL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7980BRMZRL7 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 AD7980BRMZRL7 reliable?
The price and inventory of AD7980BRMZRL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7980BRMZRL7 is usually 5 days.
3.What payment methods are accepted for AD7980BRMZRL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7980BRMZRL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7980BRMZRL7?
AD7980BRMZRL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7980BRMZRL7 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 AD7980BRMZRL7?
For technical support, including AD7980BRMZRL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7980BRMZRL7 requirements.
6.How does Aetrix verify that AD7980BRMZRL7 is sourced from the original manufacturer or authorized distributors?
All AD7980BRMZRL7 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 AD7980BRMZRL7 meets industry standards.
7.What is the process for return or replacement of AD7980BRMZRL7?
All AD7980BRMZRL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7980BRMZRL7, 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 AD7980BRMZRL7 part is unused and in its original packaging.
Return procedure for AD7980BRMZRL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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