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Analog Devices Inc. AD5273BRJZ1-REEL7
- Part No.:
- AD5273BRJZ1-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- SOT-23-8
- Datasheet:
-
AD5273BRJZ1-REEL7.pdf
- Description:
- IC DGTL POT 1KOHM 64TAP SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:2,875
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Product details
Overview
AD5273BRJZ1-REEL7 from Analog Devices is a 64-position, one-time programmable (OTP) digital potentiometer in an 8-lead SOT-23 package, featuring 1 kΩ end-to-end resistance, I²C-compatible interface, 2.7 V to 5.5 V operating voltage, and −40°C to +105°C temperature range. It serves as a permanent, set-and-forget replacement for mechanical trimmers in factory-calibrated systems.
For engineers reviewing the AD5273BRJZ1-REEL7 datasheet, AD5273BRJZ1-REEL7 pinout, AD5273BRJZ1-REEL7 application, or AD5273BRJZ1-REEL7 equivalent, key selection considerations include OTP validation bit readback, fuse-blow voltage requirement (5.0–5.5 V), wiper resistance (60–100 Ω), 6-bit resolution, and rheostat/potentiometer mode flexibility under varying supply conditions.
Technical Context
The AD5273BRJZ1-REEL7 implements fuse-link OTP memory with six data fuses, one test fuse, and one programming lock fuse-enabling irreversible resistance setting after verification. Its I²C interface supports up to 400 kHz clock frequency and uses AD0 addressing for dual-device bus configuration.
It operates in two analog modes: rheostat (W–B or W–A only) and potentiometer (A–W–B divider), with guaranteed monotonicity, 10 ppm/°C voltage-divider temperature coefficient at mid-code, and 300 ppm/°C rheostat-mode tempco. Power-up defaults to midscale (0x20) before OTP activation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 6-bit (64 positions); enables precise 1.56% step resolution across full resistance range. |
| End-to-End Resistance | 1 kΩ ±20%; selected variant confirmed by BRJZ1 suffix per Analog Devices ordering guide. |
| Operating Voltage | 2.7 V to 5.5 V; supports single-supply operation in battery-powered and industrial logic domains. |
| OTP Programming Voltage | 5.0 V to 5.5 V (VDD_OTP); requires external high-voltage source distinct from main VDD rail. |
| Supply Current | 5 µA max (IDD); ultralow quiescent draw ideal for always-on calibration circuits. |
| Settling Time | 5 µs typical (tS1/tS2); ensures rapid response during power-up or post-OTP initialization. |
| Interface | I²C-compatible (400 kHz max); eliminates need for dedicated microcontroller GPIO or SPI resources. |
| Temperature Range | −40°C to +105°C; qualified for automotive under-hood and industrial control environments. |
Pinout & Package
AD5273BRJZ1-REEL7 is housed in an 8-lead SOT-23 package (JEDEC MO-178AA), measuring 2.9 mm × 1.6 mm × 1.1 mm, with gull-wing leads and RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (W) | Wiper terminal | Analog output node; voltage or resistance varies between A and B based on programmed code; must remain within GND–VDD range. |
| 2 (VDD) | Positive supply | Primary power input (2.7–5.5 V); separate 5.0–5.5 V supply required only during OTP programming. |
| 3 (GND) | Ground reference | Common return for analog and digital sections; decoupling capacitor recommended near pin. |
| 4 (SCL) | I²C clock input | Open-drain input requiring external pull-up; VIH ≥ 0.7×VDD ensures reliable logic high detection. |
| 5 (SDA) | I²C bidirectional data | Open-drain I/O with acknowledge capability; shares same pull-up constraints as SCL. |
| 6 (AD0) | Device address bit | Selects LSB of 7-bit I²C address (0x2C or 0x2D); enables two devices on same bus without address conflict. |
| 7 (B) | Resistor terminal B | Fixed end of resistive array; used with W in rheostat mode or as ground reference in potentiometer mode. |
| 8 (A) | Resistor terminal A | Fixed end of resistive array; used with W in rheostat mode or as VDD reference in potentiometer mode. |
Key Features
| Feature | Design Value |
|---|---|
| One-time programmable memory | Fuse-link architecture provides irreversible, radiation-hardened resistance setting-no risk of accidental overwrite or EEPROM wear-out. |
| OTP validation bits (E1/E0) | Two status bits readable via I²C confirm programming success (11), failure (10), or readiness (00); eliminates need for external verification circuitry. |
| Ultralow power consumption | 5 µA max IDD enables integration into energy-sensitive systems such as portable instrumentation and sensor front-ends. |
| Fast 5 µs settling | Enables use in dynamic gain-control loops where rapid reconfiguration is required post-power-up or post-OTP. |
| Factory-programmable via software | Windows-based Analog Devices programming tool replaces external I²C controller-reducing BOM count and accelerating production calibration. |
| Compact SOT-23 footprint | 8-pin standard package allows drop-in replacement of mechanical trimmers without PCB redesign or area penalty. |
Applications
| System Calibration | Transducer Circuit Adjustment |
|---|---|
Use Scenario: Factory-trimmed offset/gain correction in precision ADC driver stages before final assembly. IC Role / Device Role / Timing Role: Set-and-forget resistance element defining feedback ratio or bias current in op-amp circuits. Use Value: Eliminates manual potentiometer tuning labor; ensures consistent performance across production batches and lifetime stability under thermal cycling. | Use Scenario: Linearization compensation for pressure or temperature sensor bridges with fixed nonlinearity profiles. IC Role / Device Role / Timing Role: Programmable resistor in Wheatstone bridge arm or op-amp gain network to null second-order errors. Use Value: Enables single-pass calibration during manufacturing; OTP prevents field drift or tampering-induced parameter shift. |
| Mechanical Potentiometer Replacement | Programmable Filter Tuning |
Use Scenario: Retrofit upgrade of legacy industrial controllers using aging carbon-film trimmers prone to drift and noise. IC Role / Device Role / Timing Role: Solid-state rheostat replacing mechanical wiper contact; operated once during commissioning. Use Value: Removes maintenance downtime due to contact wear; withstands vibration, humidity, and ESD events that degrade analog trimmers. | Use Scenario: Adjustable low-pass filter cutoff in signal conditioning path for 1 kΩ variant (6 MHz BW). IC Role / Device Role / Timing Role: Digitally configurable RC time constant element in active filter topology. Use Value: Enables firmware-defined bandwidth selection without hardware change; 6 MHz bandwidth supports audio and sensor bandwidths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5272BRUZ10-RL7 | 10 kΩ, 1024-position, nonvolatile EEMEM (not OTP); 10-bit resolution; same SOT-23-8 package. | Supports field reprogramming; higher resolution but lacks permanent setting guarantee and OTP validation bits. | Select when recalibration during service life is required; avoid if security against parameter change is mandatory. |
| MAX5487ETE+T | 100 kΩ, 256-position, OTP; SPI interface; 14-lead TDFN package-not pin-compatible. | Requires SPI host and different PCB layout; no I²C support or AD0 addressing; wider resistance range. | Choose for SPI-based systems needing higher resistance values; not suitable for direct replacement or space-constrained SOT-23 designs. |
Compared with AD5273BRJZ1-REEL7, AD5272BRUZ10-RL7 offers field-adjustability at the cost of non-permanence, while MAX5487ETE+T trades I²C compatibility and package size for higher resistance and SPI-native integration-neither matches the 1 kΩ OTP + SOT-23 + I²C combination uniquely delivered by AD5273BRJZ1-REEL7.
Availability
AD5273BRJZ1-REEL7 is available at Aetrix Electronics and suitable for system calibrations, transducer adjustments, and mechanical potentiometer replacements requiring stable component supply, long-term parameter retention, and factory-programmable precision.
Supply support for AD5273BRJZ1-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 AD5273 belongs to Analog Devices' precision digital potentiometer product line, engineered specifically for factory-set, maintenance-free calibration in harsh-environment industrial and automotive systems where EEPROM endurance or volatility is unacceptable.
FAQ
What does the "BRJZ1" suffix indicate in AD5273BRJZ1-REEL7?
The "BRJZ1" suffix identifies the specific variant of the AD5273 as the 1 kΩ end-to-end resistance option in an 8-lead SOT-23 package (RJZ = SOT-23-8), with tape-and-reel packaging (REEL7). This matches Analog Devices' official ordering guide and confirms the device's 1 kΩ nominal resistance, critical for bandwidth and power handling in target applications. AD5273BRJZ1-REEL7 is not interchangeable with 10 kΩ or 100 kΩ variants without circuit revalidation.
Can AD5273BRJZ1-REEL7 be reprogrammed after OTP activation?
No. AD5273BRJZ1-REEL7 uses physical fuse-link technology: once the OTP command executes and fuses blow, the wiper position is permanently fixed and cannot be altered-even with power cycle, reset, or repeated I²C commands. The E1/E0 validation bits will read "11" to confirm successful programming, and further write attempts are ignored. AD5273BRJZ1-REEL7 is designed exclusively for set-and-forget use cases.
What is the purpose of the AD0 pin on AD5273BRJZ1-REEL7?
The AD0 pin sets the least significant bit of the 7-bit I²C slave address, allowing two AD5273BRJZ1-REEL7 devices to share the same I²C bus without address collision: AD0 = low yields address 0x2C, AD0 = high yields 0x2D. This eliminates the need for multiplexers or separate buses in multi-channel calibration systems, simplifying firmware and reducing interconnect complexity for AD5273BRJZ1-REEL7 deployments.
Does AD5273BRJZ1-REEL7 support both potentiometer and rheostat configurations?
Yes. AD5273BRJZ1-REEL7 supports both modes: in potentiometer mode (A–W–B), it functions as a three-terminal voltage divider; in rheostat mode, either A or B is left open or shorted to W to create a two-terminal variable resistor. The datasheet guarantees monotonicity and specified DNL/INL in both configurations, and the 1 kΩ variant achieves 6 MHz bandwidth only in rheostat mode-making AD5273BRJZ1-REEL7 adaptable to diverse analog signal-path roles.
Why does AD5273BRJZ1-REEL7 require a separate 5.0–5.5 V supply for OTP programming?
AD5273BRJZ1-REEL7 requires 5.0–5.5 V (VDD_OTP) during OTP programming to deliver sufficient energy to reliably blow internal fuses-distinct from its 2.7–5.5 V operational VDD rail. This higher voltage ensures deterministic fuse-link rupture across process/voltage/temperature corners. Applying OTP voltage outside this window risks incomplete programming or irreversible damage. AD5273BRJZ1-REEL7's design isolates OTP stress from normal operation, preserving long-term reliability of the programmed setting.
AD5273BRJZ1-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 1
- Number of Taps:
- 64
- Resistance (Ohms):
- 1k
- Interface:
- I2C
- Memory Type:
- OTP
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- 300ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-8
- Operating Temperature:
- -40°C ~ 105°C
- Resistance - Wiper (Ohms) (Typ):
- 60
AD5273BRJZ1-REEL7 FAQ
1.How can I place an order for AD5273BRJZ1-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5273BRJZ1-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 AD5273BRJZ1-REEL7 reliable?
The price and inventory of AD5273BRJZ1-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5273BRJZ1-REEL7 is usually 5 days.
3.What payment methods are accepted for AD5273BRJZ1-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5273BRJZ1-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5273BRJZ1-REEL7?
AD5273BRJZ1-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5273BRJZ1-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 AD5273BRJZ1-REEL7?
For technical support, including AD5273BRJZ1-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5273BRJZ1-REEL7 requirements.
6.How does Aetrix verify that AD5273BRJZ1-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5273BRJZ1-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 AD5273BRJZ1-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5273BRJZ1-REEL7?
All AD5273BRJZ1-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5273BRJZ1-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 AD5273BRJZ1-REEL7 part is unused and in its original packaging.
Return procedure for AD5273BRJZ1-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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