My Inquiry
My Account
Analog Devices Inc. AD976BRZRL
- Part No.:
- AD976BRZRL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD976BRZRL.pdf
- Description:
- IC ADC 16BIT SAR 28SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,898
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD976BRZRL from Analog Devices is a 16-bit, 100 kSPS BiCMOS successive-approximation analog-to-digital converter (ADC) with ±10 V bipolar input range, internal 2.5 V reference, and parallel 16-bit twos-complement interface. It operates from a single +5 V supply, dissipates ≤100 mW, and targets precision data acquisition in industrial instrumentation and automated test equipment.
For engineers reviewing the AD976BRZRL datasheet, AD976BRZRL pinout, AD976BRZRL application, or AD976BRZRL equivalent, this page delivers verified technical context, exact package mapping (SOIC-28), confirmed pin functions, real-world timing behavior (t7 = 8 µs conversion time), and validated alternatives for ±10 V, 100 kSPS ADC replacement scenarios.
Technical Context
The AD976BRZRL implements a switched-capacitor SAR architecture with on-chip laser-trimmed capacitor array calibration, eliminating external sample-and-hold circuitry. Its factory-calibrated INL of ±3 LSB (B-grade) and DNL of –2/+3 LSB ensure no missing codes across –40°C to +85°C.
It integrates an internal 2.5 V reference (±2 mV initial accuracy), supports external reference override (2.3–2.7 V), and features dual analog grounds (AGND1 for REF/VIN reference, AGND2 for CAP) to minimize ground-loop errors in high-accuracy signal chains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 16-bit - delivers 305 µV LSB step size over ±10 V full-scale range |
| Throughput Rate | 100 kSPS - enables sampling of signals up to 700 kHz full-power bandwidth |
| Analog Input Range | ±10 V - compatible with standard industrial sensor outputs without level-shifting |
| DC Accuracy (INL) | ±3 LSB max - ensures monotonicity and <0.005% linearity error in closed-loop control |
| AC Performance (S/(N+D)) | 85 dB typ - supports >14-bit effective resolution for low-distortion waveform capture |
| Power Dissipation | 100 mW max - allows thermal design in space-constrained industrial modules |
| Reference | Internal 2.5 V ±0.25% - eliminates need for external reference IC in cost-sensitive designs |
Pinout & Package
AD976BRZRL is housed in a 28-lead Small Outline Integrated Circuit (SOIC) package (R-28), 300 mil width, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Analog input | Accepts ±10 V differential input referenced to AGND1; includes ±25 V overvoltage protection |
| REF | Reference I/O | Provides internal 2.5 V reference or accepts external 2.3–2.7 V source; requires 2.2 µF tantalum to AGND1 |
| CAP | Reference buffer output | Stabilizes internal reference; requires 2.2 µF tantalum to AGND2 |
| D15–D0 | Parallel data bus | 16-bit twos-complement output; high-impedance when CS HIGH or R/C LOW |
| R/C | Read/Convert control | Falling edge initiates conversion; rising edge enables data output (with CS LOW) |
| CS | Chip select | OR'd with R/C; falling edge starts conversion or latches data depending on R/C state |
| BUSY | Status indicator | Active-low open-drain output signaling conversion in progress; rising edge marks data validity |
| BYTE | Data format selector | LOW: D15–D0 on pins 6–22; HIGH: D15–D8 on pins 15–22, D7–D0 on pins 6–13 |
| VANA / VDIG | Analog/digital supplies | Separate 4.75–5.25 V rails reduce digital noise coupling into analog path |
| AGND1 / AGND2 / DGND | Ground terminals | AGND1 references REF/VIN; AGND2 references CAP; DGND isolates digital return path |
Key Features
| Feature | Design Value |
|---|---|
| On-chip capacitor array SAR | Eliminates external S/H and resistor ladder; enables stable linearity over temperature without trimming |
| Factory calibration ROM | Stores capacitor mismatch correction coefficients in thin-film resistors, reducing INL to ±3 LSB without user intervention |
| Single +5 V supply operation | Reduces system BOM by removing dual-rail power supplies while maintaining ±10 V input compliance |
| High-speed parallel interface | Bus access time ≤83 ns enables direct connection to legacy DSPs and microcontrollers without glue logic |
| Two analog ground domains | AGND1 (low-current REF/VIN reference) and AGND2 (CAP buffer) prevent ground bounce from degrading reference stability |
Applications
| Industrial Process Monitoring | Automated Test Equipment (ATE) |
|---|---|
Use Scenario: Continuous voltage monitoring of PLC analog I/O modules with ±10 V sensor inputs. IC Role / Device Role / Timing Role: Primary 16-bit ADC capturing slow-varying process variables at 100 kSPS with guaranteed monotonicity. Use Value: ±3 LSB INL ensures accurate representation of 16-bit sensor data without post-acquisition linearization. |
Use Scenario: Digitizing calibration signals in benchtop multimeters and source-measure units. IC Role / Device Role / Timing Role: High-accuracy front-end ADC interfacing directly to FPGA-controlled parallel bus for deterministic readout. Use Value: 85 dB S/(N+D) and 83 dB SFDR support >14-bit ENOB for metrology-grade measurements. |
| Medical Data Acquisition | Energy Metering Reference Design |
Use Scenario: Capturing ECG/EEG bio-potential waveforms requiring low-noise, high-linearity digitization. IC Role / Device Role / Timing Role: Precision ADC in isolated front-end stage, using internal reference to minimize component count. Use Value: Internal 2.5 V reference with ±7 ppm/°C drift maintains gain stability across clinical operating temperatures. |
Use Scenario: High-accuracy voltage channel in Class 0.2 polyphase energy meters compliant with IEC 62053-22. IC Role / Device Role / Timing Role: Bipolar-input ADC measuring phase-to-phase voltages with ±10 V range and calibrated offset/gain. Use Value: Bipolar zero error ≤±10 mV and full-scale error ≤±0.5% meet stringent metering gain/offset tolerance requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 16-bit, 100 kSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS8860IDRCT | SAR ADC, 16-bit, 1 MSPS, SPI interface, external reference only, 1.8 V supply | Requires external reference and level-shifting for ±10 V input; higher speed but no internal ref or bipolar support | Select for low-power, high-throughput systems where SPI is preferred and ±10 V input is conditioned externally |
| MAX11270EEE+ | Delta-sigma ADC, 24-bit, 10 kSPS, internal ±2.5 V reference, 5 V supply, differential input | Lower throughput, higher resolution, oversampling architecture; no native ±10 V range without gain stage | Select for ultra-high-precision DC/low-frequency measurements where 100 kSPS is not required |
Compared with ADS8860IDRCT and MAX11270EEE+, the AD976BRZRL uniquely combines ±10 V bipolar input, internal 2.5 V reference, parallel interface, and 100 kSPS throughput in a single SOIC-28 package-making it irreplaceable in legacy industrial controllers requiring drop-in compatibility and minimal redesign.
Availability
AD976BRZRL is available at Aetrix Electronics and suitable for industrial process monitoring, automated test equipment, medical data acquisition, and energy metering applications requiring stable component supply and long-term obsolescence management.
Supply support for AD976BRZRL 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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD976BRZRL belongs to Analog Devices' precision data acquisition product line, engineered for applications demanding high DC accuracy, low power, and seamless integration of reference, clock, and interface in a single IC.
FAQ
What is the maximum sampling rate supported by the AD976BRZRL?
The AD976BRZRL supports a maximum throughput rate of 100 kSPS, corresponding to a minimum conversion time of 10 µs. This is confirmed in the AD976 specifications table under "THROUGHPUT SPEED" and applies to all grade variants (A/B/C) of the AD976 family, including the AD976BRZRL which uses the AD976 core.
Does the AD976BRZRL include an internal voltage reference?
Yes, the AD976BRZRL integrates a factory-trimmed 2.5 V internal reference with ±0.25% initial accuracy and ±7 ppm/°C drift. The reference is accessible at the REF pin and can be overridden by an external 2.3–2.7 V source, as specified in the "REFERENCE" section of the AD976 datasheet.
What package type is used for the AD976BRZRL?
The AD976BRZRL is packaged in a 28-lead Small Outline Integrated Circuit (SOIC) with 300 mil body width (R-28 package). This matches the ordering code "R" in AD976BR, and is explicitly listed in the Ordering Guide as "28-Lead Small Outline Package" with option code R-28.
Can the AD976BRZRL operate with a single 5 V supply?
Yes, the AD976BRZRL operates from a single 5 V supply across both analog (VANA) and digital (VDIG) rails, with specified performance over 4.75 V to 5.25 V. Total power dissipation remains ≤100 mW, as confirmed in the "POWER SUPPLIES" and "POWER DISSIPATION" sections of the datasheet.
What is the analog input impedance of the AD976BRZRL?
The AD976BRZRL exhibits an analog input impedance of 23 kΩ for the AD976 variant (which AD976BRZRL belongs to), with 22 pF input capacitance. This value is specified in the AD976–SPECIFICATIONS table under "ANALOG INPUT Impedance" and is distinct from the 13 kΩ value of the faster AD976A variant.
AD976BRZRL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 16
- Sampling Rate (Per Second):
- 100k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 28-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD976BRZRL FAQ
1.How can I place an order for AD976BRZRL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD976BRZRL 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 AD976BRZRL reliable?
The price and inventory of AD976BRZRL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD976BRZRL is usually 5 days.
3.What payment methods are accepted for AD976BRZRL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD976BRZRL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD976BRZRL?
AD976BRZRL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD976BRZRL 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 AD976BRZRL?
For technical support, including AD976BRZRL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD976BRZRL requirements.
6.How does Aetrix verify that AD976BRZRL is sourced from the original manufacturer or authorized distributors?
All AD976BRZRL 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 AD976BRZRL meets industry standards.
7.What is the process for return or replacement of AD976BRZRL?
All AD976BRZRL units undergo pre-shipment inspection (PSI). If there is an issue with AD976BRZRL, 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 AD976BRZRL part is unused and in its original packaging.
Return procedure for AD976BRZRL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD976BRZRL Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
