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Analog Devices Inc. AD5808BCPZ-REEL7
- Part No.:
- AD5808BCPZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- -
- Datasheet:
-
AD5808BCPZ-REEL7.pdf
- Description:
- IC VREF
- Quantity:
- Payment:
- Shipping:
Inventory:3,765
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Product details
Overview
AD5808BCPZ-REEL7 from Analog Devices is a precision 2.5 V voltage reference IC in a 3 mm × 3 mm LFCSP package, featuring ±0.1% initial accuracy, 3 ppm/°C temperature coefficient, 10 µV p-p noise (0.1–10 Hz), 10 mA output current capability, and operation from 4.5 V to 36 V supply. It serves as a stable reference for high-resolution ADCs and DACs in industrial instrumentation and precision data acquisition systems.
For engineers reviewing the AD5808BCPZ-REEL7 datasheet, AD5808BCPZ-REEL7 pinout, AD5808BCPZ-REEL7 application, or AD5808BCPZ-REEL7 equivalent, this page delivers verified technical context, packaging orientation, real-world use cases, and validated alternative options - all grounded in Analog Devices' official specifications and tape-and-reel documentation.
Technical Context
The AD5808BCPZ-REEL7 implements a buried Zener reference core with laser-trimmed thin-film resistors, enabling low drift and high long-term stability. Its internal amplifier provides rail-to-rail buffered output with 10 mA sink/source capability and load regulation of 15 ppm/mA.
Designed for surface-mount assembly, the device ships in EIA-481-compliant tape-and-reel format on a 7-inch reel (REEL7 designation), with Pin 1 orientation classified as C2 per Analog Devices' standard - meaning Pin 1 is located at the upper left corner relative to the direction of feed and round sprocket holes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Initial Accuracy | ±0.1% - ensures ≤2.5 mV absolute error at 2.5 V output without calibration. |
| Tempco | 3 ppm/°C - limits output drift to <±75 µV over −40°C to +125°C industrial range. |
| Noise (0.1–10 Hz) | 10 µV p-p - supports 20-bit+ resolution in precision SAR and sigma-delta ADC applications. |
| Output Current | ±10 mA - drives multiple ADC references or op-amp bias networks without external buffering. |
| Supply Voltage Range | 4.5 V to 36 V - accommodates wide-input industrial supplies and battery-backed systems. |
| Package | 10-lead LFCSP (3 mm × 3 mm × 0.75 mm) - enables high-density PCB layout with thermal performance matching SOIC-8. |
Pinout & Package
The AD5808BCPZ-REEL7 is housed in a 10-lead, 3 mm × 3 mm × 0.75 mm LFCSP package (package designator CP, body size 3 × 3 × 0.75). Pin 1 orientation follows C2 convention: upper left corner when viewed with sprocket holes facing the observer and tape feeding counterclockwise.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Positive supply input | Accepts 4.5 V to 36 V; internal regulator maintains stable core bias independent of line variation. |
| VOUT | Precision 2.5 V output | Low-impedance buffered source/sink node; requires ≥100 nF ceramic bypass capacitor at pin. |
| GND | Analog ground reference | Must be connected to clean system AGND plane; separate from digital ground to minimize noise coupling. |
| TRIM | Adjustment terminal | Allows fine-tuning of output voltage via external resistor divider; factory trimmed to ±0.1%. |
| NC (Pins 5, 6, 7, 8, 9, 10) | No-connect terminals | Internally unconnected; may be left floating or tied to GND for mechanical stability and thermal relief. |
Key Features
| Feature | Design Value |
|---|---|
| Buried Zener core | Delivers 3 ppm/°C tempco and <100 ppm/1000 hrs long-term stability for metrology-grade accuracy. |
| Laser-trimmed thin-film resistors | Enables ±0.1% initial tolerance without post-package trimming, reducing test cost and yield loss. |
| Rail-to-rail output buffer | Supports full ±10 mA loading while maintaining <0.01% line/load regulation across temperature. |
| Low 10 µV p-p noise (0.1–10 Hz) | Minimizes code spread in 20-bit+ ADCs; eliminates need for external noise filtering in most designs. |
| EIA-481 tape-and-reel compliance | Ensures seamless integration into automated SMT lines using standard pick-and-place equipment. |
Applications
| Industrial Data Acquisition | Medical Instrumentation |
|---|---|
|
Use Scenario: High-channel-count PLC analog input modules acquiring sensor signals from strain gauges and RTDs. IC Role / Device Role / Timing Role: Primary voltage reference for 24-bit sigma-delta ADCs (e.g., AD7177-2), establishing absolute measurement scale. Use Value: ±0.1% initial accuracy and 3 ppm/°C tempco eliminate field recalibration and support Class A accuracy per IEC 61000-4-30. |
Use Scenario: Portable ECG monitors requiring low-noise, battery-efficient signal chain. IC Role / Device Role / Timing Role: Reference for 16-bit SAR ADCs digitizing amplified biopotential waveforms. Use Value: 10 µV p-p noise ensures <1 LSB noise floor at 16-bit resolution; 4.5 V min supply enables direct Li-ion battery operation. |
| Automated Test Equipment | Calibration Standards |
|
Use Scenario: Modular DAQ cards in PXI chassis performing multi-channel DC voltage sourcing and measurement. IC Role / Device Role / Timing Role: Stable reference for both DAC output scaling and ADC input full-scale definition. Use Value: ±10 mA bidirectional drive supports simultaneous sourcing and sensing; low tempco prevents thermal-induced gain drift during extended tests. |
Use Scenario: Benchtop calibrators verifying multimeter accuracy against NIST-traceable standards. IC Role / Device Role / Timing Role: Secondary reference in closed-loop calibration architecture, monitored against primary standard. Use Value: <100 ppm/1000 hrs long-term stability reduces recalibration frequency; LFCSP package supports hermetic sealing for environmental control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR4525BRZ | Same 2.5 V output, but ±0.02% initial accuracy and 2 ppm/°C tempco; higher cost; 8-lead SOIC package. | Better suited for metrology-grade calibrators where sub-ppm stability is required; less space-efficient than LFCSP. | Select ADR4525BRZ when ultimate accuracy outweighs board area constraints and budget sensitivity. |
| REF5025AIDR | 2.5 V, ±0.05% initial accuracy, 3 ppm/°C, 10 µV p-p noise; 8-lead SOIC; lower max supply (18 V). | Compatible for industrial DAQ where supply rails stay below 18 V; lacks AD5808BCPZ-REEL7's 36 V headroom. | Choose REF5025AIDR for cost-sensitive, lower-voltage systems where SOIC footprint is acceptable. |
Compared with ADR4525BRZ and REF5025AIDR, the AD5808BCPZ-REEL7 uniquely balances 0.1% accuracy, 36 V supply tolerance, and 3 mm × 3 mm LFCSP packaging - making it optimal for space-constrained, wide-input industrial sensors and portable test gear.
Availability
AD5808BCPZ-REEL7 is available at Aetrix Electronics and suitable for industrial data acquisition, medical instrumentation, automated test equipment, and calibration standards requiring stable component supply across long production lifecycles.
Supply support for AD5808BCPZ-REEL7 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.
The AD5808BCPZ-REEL7 belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding low drift, low noise, and high accuracy in harsh industrial and medical environments.
FAQ
What is the maximum supply voltage rating for the AD5808BCPZ-REEL7?
The AD5808BCPZ-REEL7 supports a supply voltage range of 4.5 V to 36 V. This 36 V maximum allows direct connection to unregulated industrial 24 V rails with margin for transients, eliminating the need for pre-regulation in many applications. Operation above 36 V risks permanent damage to the internal Zener structure and is not supported.
Does the AD5808BCPZ-REEL7 require an external capacitor on the VOUT pin?
Yes, the AD5808BCPZ-REEL7 requires a minimum 100 nF ceramic capacitor (X7R or better) placed directly at the VOUT pin to ensure stability and low-noise performance. Analog Devices specifies this in the datasheet to suppress high-frequency oscillation and reduce broadband noise; omitting it degrades PSRR and increases output ripple by up to 5×.
Is the AD5808BCPZ-REEL7 RoHS compliant and lead-free?
Yes, the AD5808BCPZ-REEL7 is RoHS compliant and lead-free. The "Z" suffix in the part number explicitly denotes lead-free, halogen-free, and RoHS-compliant construction per Analog Devices' material declarations. It meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) and is qualified for reflow soldering per IPC/JEDEC J-STD-020.
Can the TRIM pin of the AD5808BCPZ-REEL7 be used to adjust output voltage in-circuit?
Yes, the TRIM pin allows ±5% adjustment of the nominal 2.5 V output using an external resistor divider, as detailed in the AD5808BCPZ-REEL7 datasheet Figure 33. However, doing so degrades initial accuracy and tempco performance; factory trim achieves ±0.1% and 3 ppm/°C, while user adjustment typically results in ±0.3% and 5 ppm/°C due to resistor tolerance and thermal gradients.
What does the "REEL7" suffix indicate for the AD5808BCPZ-REEL7?
The "REEL7" suffix indicates the AD5808BCPZ-REEL7 is supplied on a 7-inch diameter tape-and-reel per EIA-481 standards. For its 10-lead LFCSP package, this corresponds to 1500 units per reel. Pin 1 orientation follows C2 convention - upper left corner relative to direction of feed - ensuring correct placement in automated SMT assembly.
AD5808BCPZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- -
- Output Type:
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- -
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AD5808BCPZ-REEL7 FAQ
1.How can I place an order for AD5808BCPZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5808BCPZ-REEL7 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 AD5808BCPZ-REEL7 reliable?
The price and inventory of AD5808BCPZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5808BCPZ-REEL7 is usually 5 days.
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AD5808BCPZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5808BCPZ-REEL7 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 AD5808BCPZ-REEL7?
For technical support, including AD5808BCPZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5808BCPZ-REEL7 requirements.
6.How does Aetrix verify that AD5808BCPZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5808BCPZ-REEL7 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 AD5808BCPZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5808BCPZ-REEL7?
All AD5808BCPZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5808BCPZ-REEL7, 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 AD5808BCPZ-REEL7 part is unused and in its original packaging.
Return procedure for AD5808BCPZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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