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Analog Devices Inc. AD876JR-8-REEL
- Part No.:
- AD876JR-8-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 28-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
AD876JR-8-REEL.pdf
- Description:
- 10-BIT ADC PARALLEL, WORD ACCESS
- Quantity:
- Payment:
- Shipping:
Inventory:4,000
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Product details
Overview
AD876JR-8-REEL from Analog Devices is a CMOS 8-bit, 20 MSPS analog-to-digital converter with single +5 V supply operation, 160 mW power dissipation, and guaranteed no missing codes - designed for video digitization, CCD imaging systems, and high-speed portable data acquisition.
For engineers reviewing the AD876JR-8-REEL datasheet, AD876JR-8-REEL pinout, AD876JR-8-REEL application, or AD876JR-8-REEL equivalent, this page delivers verified specs, SOIC-28 package mapping, functional pin roles, real-world use cases in color scanners and camcorders, and two validated alternative parts with documented technical differences.
Technical Context
The AD876JR-8-REEL implements a multistage pipelined architecture with on-chip sample-and-hold and output error correction logic, enabling 20 MSPS conversion with guaranteed no missing codes across 0°C to +70°C. It uses force-sense reference inputs (REFTF/REFTS/REFBF/REFBS) to minimize voltage drop errors and supports adjustable reference top/bottom voltages (1.6 V to 4.5 V).
Digital I/Os are compatible with both +5 V and +3.3 V logic via DRVDD-supplied buffers; THREE-STATE and STBY pins enable high-impedance outputs and standby mode (<50 mW). Pipeline latency is fixed at 3.5 clock cycles, with aperture jitter of 22 ps and full-power bandwidth of 150 MHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8 bits - fixed resolution variant of AD876 family; distinct from 10-bit AD876JR. |
| Sampling Rate | 20 MSPS - supports real-time digitization of NTSC/PAL video signals and CCD line rates. |
| Power Dissipation | 160 mW at 20 MSPS - enables battery-powered imaging devices without thermal derating. |
| Differential Nonlinearity | ±0.5 LSB max - ensures monotonic transfer function and eliminates code ambiguities. |
| Analog Input Range | 2 V p-p - defined by REFTS–REFBS differential voltage; supports standard video signal levels. |
| Reference Interface | Force-sense topology (REFTF/REFTS/REFBF/REFBS) - cancels wiring resistance effects for <0.1% gain error. |
| Supply Voltages | AVDD/DVDD = +4.5 V to +5.25 V; DRVDD = +3.0 V to +5.25 V - enables mixed-voltage system interfacing. |
Pinout & Package
AD876JR-8-REEL is housed in a 28-lead SOIC (R-28) package with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC compliance. Pin 1 is marked with a beveled corner; device height is 2.65 mm max.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D0 (LSB)–D7 | Digital Output | 8-bit straight-binary data bus; D0 = LSB, D7 = MSB; three-state controlled by THREE-STATE pin. |
| THREE-STATE | Digital Input | Active-low control: LOW enables outputs, HIGH places D0–D7 in high-impedance state. |
| STBY | Digital Input | Active-high control: HIGH enters standby mode (<50 mW); LOW enables normal operation. |
| CLK | Digital Input | 20 MSPS clock input; internally buffered from DRVDD; threshold ≈ DRVDD/2. |
| AIN | Analog Input | Differential input node for 2 V p-p signal; internal sample-and-hold with 5 pF total capacitance. |
| REFTF / REFTS | Analog Input | Force and sense connections for top reference voltage; eliminates IR drop in PCB traces. |
| REFBF / REFBS | Analog Input | Force and sense connections for bottom reference voltage; enables precise 2 V span setting. |
| AVDD / AVSS | Power | +5 V analog supply and analog ground; must be within 0.5 V of DVDD for specified INL/DNL. |
| DVDD / DVSS | Power | +5 V digital supply and digital ground; powers core logic and pipeline stages. |
| DRVDD / DRVSS | Power | +3.3 V/+5 V supply and ground for I/O buffers; sets logic thresholds for all digital pins. |
Key Features
| Feature | Design Value |
|---|---|
| Pipelined multistage architecture | Enables 20 MSPS sampling with only 160 mW - 3× lower power than flash ADCs of similar speed. |
| Force-sense reference interface | Compensates for PCB trace resistance up to 5 Ω, maintaining <0.05% gain error over temperature. |
| Three-state digital outputs | Allows direct connection to shared data buses without external bus transceivers or pull-ups. |
| Standby mode | Reduces power to <50 mW - extends battery life in portable camcorders and electronic still cameras. |
| Single +5 V supply operation | Eliminates need for dual ±5 V rails; simplifies power design for embedded video capture modules. |
Applications
| Color Scanners | Digital Copiers |
|---|---|
Use Scenario: Digitizing reflected light from moving document platen using linear CCD array. IC Role / Device Role / Timing Role: ADC capturing 20 MSPS pixel stream; synchronizes to line-clock and provides straight-binary output to FPGA buffer. Use Value: 8-bit resolution matches scanner grayscale depth requirements while 160 mW power enables fanless enclosure design. | Use Scenario: Converting analog image sensor output in high-volume office copier mainboard. IC Role / Device Role / Timing Role: High-reliability ADC interfacing to ASIC image processor; operates continuously under thermal stress. Use Value: Guaranteed no missing codes prevents banding artifacts; SOIC-28 package supports automated optical inspection (AOI) during SMT assembly. |
| Electronic Still Cameras | Camcorders |
Use Scenario: Capturing preview frames from CCD sensor prior to JPEG compression in handheld camera. IC Role / Device Role / Timing Role: Low-power ADC feeding preview engine; enters standby between frame captures. Use Value: Standby mode cuts idle power by 70%, extending battery runtime per charge cycle. | Use Scenario: Real-time digitization of composite video signal in consumer-grade camcorder. IC Role / Device Role / Timing Role: Video ADC synchronized to NTSC line rate (15.734 kHz); drives downstream MPEG encoder. Use Value: 150 MHz full-power bandwidth preserves luminance/chrominance integrity; 22 ps aperture jitter minimizes motion blur. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, 20 MSPS ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD9203ARUZ-20 | 10-bit, 40 MSPS, 3 V supply only; no force-sense reference; 125 mW at 20 MSPS. | Requires level-shifting for +5 V systems; lacks standby mode; higher resolution may increase FPGA resource usage. | Select when higher SNR (>60 dB) and future-proofing for 10-bit processing are priorities. |
| MAX1186EEE+ | 8-bit, 20 MSPS, +3.3 V supply only; internal reference; no standby mode; 180 mW. | Eliminates external reference circuit but limits input range to 2 V p-p fixed; incompatible with +5 V logic without translators. | Select for space-constrained designs where reference integration outweighs power and voltage flexibility trade-offs. |
Compared with AD9203ARUZ-20 and MAX1186EEE+, the AD876JR-8-REEL uniquely combines +5 V compatibility, force-sense reference accuracy, and standby power reduction - making it optimal for cost-sensitive, thermally constrained, and legacy-voltage imaging systems.
Availability
AD876JR-8-REEL is available at Aetrix Electronics and suitable for color scanners, digital copiers, and electronic still cameras requiring stable component supply, long-term manufacturability, and commercial-temperature grade performance.
Supply support for AD876JR-8-REEL 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 AD876 product line was engineered for high-speed, low-power digitization in imaging and video systems - prioritizing resolution stability, power efficiency, and robust reference interface design over generic data acquisition use cases.
FAQ
What is the resolution and sampling rate of the AD876JR-8-REEL?
The AD876JR-8-REEL is an 8-bit analog-to-digital converter with a maximum sampling rate of 20 MSPS. This resolution is fixed and distinct from the 10-bit AD876JR variant. Its 20 MSPS rate supports real-time digitization of NTSC/PAL video signals and CCD line outputs, with pipeline latency of 3.5 clock cycles and aperture jitter of 22 ps - confirmed in the AD876 Rev. B datasheet timing specifications.
Does the AD876JR-8-REEL support power-down mode?
Yes, the AD876JR-8-REEL supports standby mode via the STBY pin: asserting STBY HIGH reduces power consumption to below 50 mW. This feature is explicitly documented in the Product Description and PRODUCT HIGHLIGHTS sections of the AD876 Rev. B datasheet, and is critical for battery-operated applications like electronic still cameras and camcorders where intermittent capture is used.
What package type and pin count does the AD876JR-8-REEL use?
The AD876JR-8-REEL uses a 28-lead SOIC (R-28) package, as confirmed in the ORDERING GUIDE table of the AD876 Rev. B datasheet. Pin functions are fully detailed in the PIN CONFIGURATIONS and PIN FUNCTION DESCRIPTIONS sections, including explicit note that "PINS D0 AND D1 ARE LEFT OPEN FOR THE AD876JR-8" - confirming its 8-bit configuration within the same SOIC footprint as the 10-bit variants.
Can the AD876JR-8-REEL operate with both +5 V and +3.3 V logic levels?
Yes, the AD876JR-8-REEL supports dual-voltage logic interfacing: digital I/Os are compatible with +5 V or +3.3 V logic via the DRVDD supply pin, which sets input thresholds (~DRVDD/2) and output drive strength. This is verified in the DIGITAL SPECIFICATIONS table and PRODUCT DESCRIPTION, where DRVDD range is specified as +3.0 V to +5.25 V - enabling seamless integration into mixed-voltage systems without level shifters.
Is the AD876JR-8-REEL pin-compatible with other AD876 variants?
Yes, the AD876JR-8-REEL is pin-compatible with the 10-bit AD876JR and AD876JRS variants in the same SOIC-28 package, as stated in the PRODUCT HIGHLIGHTS ("Pin Compatible Upgrade Path") and ORDERING GUIDE. D0 and D1 are left open per the datasheet, preserving identical pinout and footprint - allowing hardware reuse when migrating from 8-bit to 10-bit resolution based on prototype results.
AD876JR-8-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 28-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 20M
- 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:
- Pipelined
- Reference Type:
- External
- Voltage - Supply, Analog:
- 4.5V ~ 5.25V
- Voltage - Supply, Digital:
- 4.5V ~ 5.25V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 28-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD876JR-8-REEL FAQ
1.How can I place an order for AD876JR-8-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD876JR-8-REEL 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 AD876JR-8-REEL reliable?
The price and inventory of AD876JR-8-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD876JR-8-REEL is usually 5 days.
3.What payment methods are accepted for AD876JR-8-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD876JR-8-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD876JR-8-REEL?
AD876JR-8-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD876JR-8-REEL 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 AD876JR-8-REEL?
For technical support, including AD876JR-8-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD876JR-8-REEL requirements.
6.How does Aetrix verify that AD876JR-8-REEL is sourced from the original manufacturer or authorized distributors?
All AD876JR-8-REEL 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 AD876JR-8-REEL meets industry standards.
7.What is the process for return or replacement of AD876JR-8-REEL?
All AD876JR-8-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD876JR-8-REEL, 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 AD876JR-8-REEL part is unused and in its original packaging.
Return procedure for AD876JR-8-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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