My Inquiry
My Account
Analog Devices Inc. AD5272BCPZ-100-RL7
- Part No.:
- AD5272BCPZ-100-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 10-VFDFN Exposed Pad, CSP
- Datasheet:
-
AD5272BCPZ-100-RL7.pdf
- Description:
- IC DGTL POT 100KOHM 10LFCSP
- Quantity:
- Payment:
- Shipping:
Inventory:3,925
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD5272BCPZ-100-RL7 from Analog Devices is a single-channel, 1024-position digital rheostat with 100 kΩ nominal resistance, ±1% end-to-end resistor tolerance error, I²C interface, and 50-times programmable (50-TP) nonvolatile wiper memory. It operates from 2.7 V to 5.5 V single supply or ±2.5 V dual supply and is used in precision sensor calibration and programmable gain control circuits.
For engineers reviewing the AD5272BCPZ-100-RL7 datasheet, AD5272BCPZ-100-RL7 pinout, AD5272BCPZ-100-RL7 application, or AD5272BCPZ-100-RL7 equivalent, key selection considerations include guaranteed 1% resistor tolerance in R-Perf mode, 5 ppm/°C rheostat temperature coefficient, 10-bit resolution, and LFCSP-10 package compatibility with high-density industrial PCB layouts.
Technical Context
The AD5272BCPZ-100-RL7 implements a segmented resistor ladder architecture with digitally controlled CMOS switches, enabling precise wiper positioning across 1024 codes. Its R-Perf mode guarantees ±1% tolerance for codes ≥0x04B (75 decimal) at 100 kΩ, validated over −40°C to +125°C.
It uses a standard/fast-mode I²C interface (100 kHz/400 kHz) with 7-bit address (01011xx determined by ADDR pin), supports wiper readback, and executes 50-TP memory programming in 350 ms with automatic lockout during fuse blow. Power-on defaults to last stored wiper position.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10 bits - enables 1024 discrete resistance steps for fine-grained analog tuning |
| Nominal Resistance | 100 kΩ - defines full-scale end-to-end resistance; sets current range and gain scaling in op-amp circuits |
| Resistor Tolerance Error | ±1% - guaranteed in R-Perf mode for codes ≥0x04B; eliminates need for external calibration in open-loop applications |
| Temperature Coefficient | 5 ppm/°C - ensures stable resistance over temperature in precision instrumentation and sensor front-ends |
| Supply Range | 2.7 V to 5.5 V single supply or ±2.5 V dual supply - supports both unipolar and bipolar signal conditioning |
| I²C Interface Speed | Up to 400 kHz - enables fast configuration updates without CPU overhead in real-time control loops |
| 50-TP Memory | 50-programmable nonvolatile storage - retains calibrated wiper position across power cycles; no external EEPROM required |
Pinout & Package
AD5272BCPZ-100-RL7 is housed in a 3 mm × 3 mm × 0.8 mm thin LFCSP-10 package with exposed pad (EPAD), rated for −40°C to +125°C operation. Thermal resistance θJA = 58.4°C/W enables reliable performance in thermally constrained industrial modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Positive power supply | Must be decoupled with 0.1 µF ceramic + 10 µF bulk capacitor; supports 2.7–5.5 V single supply or +2.5 V in dual-supply mode |
| A | Resistor terminal A | One end of 100 kΩ resistive element; voltage range limited to VSS ≤ VA ≤ VDD |
| W | Wiper terminal | Adjustable tap point; delivers programmable resistance between A and W; capacitance = 40 pF at half scale |
| VSS | Negative supply / ground reference | Connected to 0 V in single-supply systems; supports −2.5 V in bipolar operation for AC-coupled signal adjustment |
| EXT_CAP | External capacitor connection | Requires 1 µF ≥7 V capacitor to VSS; stabilizes internal charge pump during 50-TP programming |
| GND | Logic ground reference | Separate from power ground in mixed-signal layouts to minimize digital noise coupling into analog path |
| RESET | Hardware reset input | Active-low signal; reloads RDAC register from 50-TP memory; tie to VDD if unused |
| SDA | I²C bidirectional data line | Open-drain; requires external pull-up; supports standard/fast-mode timing with tSU;DAT = 100 ns (fast mode) |
| SCL | I²C clock line | Input-only; drives internal timing; rise/fall times ≤300 ns in fast mode |
| ADDR | I²C address LSB input | Configures two least-significant address bits; GND/VDD/NC selects among three unique 7-bit addresses on shared bus |
Key Features
| Feature | Design Value |
|---|---|
| 1% end-to-end resistor tolerance | Guaranteed in R-Perf mode for ≥75 codes at 100 kΩ - enables direct replacement of mechanical trimmers in metrology-grade calibration |
| 50-times programmable (50-TP) memory | Permanent wiper freeze via internal fuse blow - eliminates recalibration drift after field deployment; no external NVM needed |
| Rheostat temperature coefficient | 5 ppm/°C - maintains <0.1% resistance shift over −40°C to +125°C - critical for automotive and industrial sensor signal chains |
| I²C wiper readback capability | Real-time verification of programmed resistance value - supports closed-loop self-test and fault logging in safety-critical systems |
| Dual-supply operation (±2.5 V) | Enables ground-referenced bipolar signal adjustment - allows AC-coupled gain control without level-shifting circuitry |
Applications
| Instrumentation Gain Calibration | Programmable Power Supply |
|---|---|
|
Use Scenario: Calibrating offset and gain in 24-bit precision ADC front-ends for weigh scales and pressure transmitters. IC Role / Device Role / Timing Role: Digital rheostat in op-amp feedback loop to set precise gain ratio; wiper position stored in 50-TP memory post-calibration. Use Value: Eliminates manual potentiometer adjustment and long-term drift; ±1% tolerance ensures first-pass calibration success across temperature. |
Use Scenario: Setting output voltage in digitally adjustable lab-grade DC power supplies with remote sensing. IC Role / Device Role / Timing Role: Configurable resistor in voltage divider network feeding error amplifier; updated via I²C during power-up or user command. Use Value: Enables 1024-step resolution for 0.1% output accuracy; 50-TP memory preserves user-set voltage across power cycles. |
| Sensor Offset Adjustment | Programmable Filter Tuning |
|
Use Scenario: Compensating zero-point drift in MEMS accelerometers and RTD-based temperature sensors. IC Role / Device Role / Timing Role: Rheostat in summing junction of instrumentation amplifier to inject calibrated offset correction current. Use Value: 5 ppm/°C tempco matches sensor drift profile; ±1% tolerance avoids introducing new error sources into compensation path. |
Use Scenario: Dynamically adjusting cutoff frequency in active low-pass filters for adaptive signal conditioning in motor drives. IC Role / Device Role / Timing Role: Variable resistance in RC time constant network; updated in real time based on load current or thermal feedback. Use Value: 10-bit resolution enables fine filter tuning; I²C readback confirms actual resistance before closed-loop response calculation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital rheostat applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5272BCPZ-20-RL7 | 20 kΩ nominal resistance; same 10-bit resolution, ±1% tolerance, and LFCSP-10 package | Better suited for higher-current rheostat paths (±3 mA max) and lower-impedance gain stages | Select when circuit requires lower resistance for reduced thermal noise or higher drive capability |
| AD5274BRMZ-100-R7 | 8-bit resolution (256 positions); same 100 kΩ, ±1% tolerance, but MSOP-10 package (3 mm × 4.9 mm) | Lower code granularity; larger footprint; identical I²C interface and 50-TP functionality | Choose for cost-sensitive designs where 256-step resolution suffices and board space permits MSOP |
Compared with AD5272BCPZ-20-RL7 and AD5274BRMZ-100-R7, the AD5272BCPZ-100-RL7 uniquely delivers 10-bit precision at 100 kΩ in the smallest LFCSP package, making it optimal for high-accuracy, space-constrained calibration nodes where resistance stability and minimal tempco are critical.
Availability
AD5272BCPZ-100-RL7 is available at Aetrix Electronics and suitable for precision sensor calibration, programmable power supplies, instrumentation gain control, and industrial filter tuning requiring stable component supply and long-term parametric consistency.
Supply support for AD5272BCPZ-100-RL7 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 AD5272/AD5274 product line was designed specifically for replacing mechanical potentiometers in precision analog signal conditioning, emphasizing guaranteed resistor tolerance, nonvolatile memory, and robust operation across extended industrial temperatures.
FAQ
What is the guaranteed resistor tolerance for AD5272BCPZ-100-RL7?
The AD5272BCPZ-100-RL7 guarantees ±1% end-to-end resistor tolerance in Resistor Performance (R-Perf) mode for wiper codes ≥0x04B (75 decimal) at 100 kΩ. This specification is validated over the full −40°C to +125°C operating range and simplifies open-loop calibration tasks without requiring external trimming. The AD5272BCPZ-100-RL7 achieves this using factory-trimmed resistor ladder segments and on-chip calibration logic.
Does AD5272BCPZ-100-RL7 support dual-supply operation?
Yes, AD5272BCPZ-100-RL7 supports dual-supply operation at ±2.5 V, enabling ground-referenced bipolar signal adjustment in AC-coupled applications. Terminal A and W tolerate voltages from VSS to VDD, allowing symmetrical swing around 0 V. This mode is explicitly characterized in the datasheet for THD, bandwidth, and PSRR performance, and the AD5272BCPZ-100-RL7 maintains its 5 ppm/°C tempco and ±1% tolerance under these conditions.
How does the 50-TP memory function in AD5272BCPZ-100-RL7?
The 50-TP memory in AD5272BCPZ-100-RL7 uses one-time programmable fuses to permanently store the wiper position. Each programming cycle takes ~350 ms and consumes ~4 mA peak current; the device locks out further commands during execution. After programming, the AD5272BCPZ-100-RL7 automatically restores this value at power-up. Up to 50 independent writes are supported, and the memory retains data for >10 years at +125°C per JEDEC standards.
What package type is used for AD5272BCPZ-100-RL7?
AD5272BCPZ-100-RL7 uses a 3 mm × 3 mm × 0.8 mm thin LFCSP-10 package with exposed pad (EPAD), optimized for thermal performance and high-density PCB layouts. Its θJA = 58.4°C/W allows reliable operation in compact industrial modules. Pinout is identical to other AD5272 variants in LFCSP, ensuring drop-in compatibility across resistance values within the same family.
Can AD5272BCPZ-100-RL7 operate with standard-mode I²C?
Yes, AD5272BCPZ-100-RL7 fully supports standard-mode I²C at 100 kHz and fast-mode at 400 kHz. It uses a 7-bit slave address (01011xx) configurable via the ADDR pin, and complies with all timing parameters in Table 7 of the Rev. G datasheet - including tSU;DAT = 250 ns (standard) and 100 ns (fast), and tHD;STA = 4.7 µs (standard) or 0.6 µs (fast). No external level shifters are needed for 3.3 V or 5 V controllers.
AD5272BCPZ-100-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad, CSP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Rheostat
- Number of Circuits:
- 1
- Number of Taps:
- 1024
- Resistance (Ohms):
- 100k
- Interface:
- I2C
- Memory Type:
- Non-Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V, ±2.5V ~ 2.75V
- Features:
- Selectable Address
- Tolerance:
- ±1%
- Temperature Coefficient (Typ):
- 5ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-LFCSP-WD (3x3)
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 35
AD5272BCPZ-100-RL7 FAQ
1.How can I place an order for AD5272BCPZ-100-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5272BCPZ-100-RL7 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 AD5272BCPZ-100-RL7 reliable?
The price and inventory of AD5272BCPZ-100-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5272BCPZ-100-RL7 is usually 5 days.
3.What payment methods are accepted for AD5272BCPZ-100-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5272BCPZ-100-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5272BCPZ-100-RL7?
AD5272BCPZ-100-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5272BCPZ-100-RL7 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 AD5272BCPZ-100-RL7?
For technical support, including AD5272BCPZ-100-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5272BCPZ-100-RL7 requirements.
6.How does Aetrix verify that AD5272BCPZ-100-RL7 is sourced from the original manufacturer or authorized distributors?
All AD5272BCPZ-100-RL7 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 AD5272BCPZ-100-RL7 meets industry standards.
7.What is the process for return or replacement of AD5272BCPZ-100-RL7?
All AD5272BCPZ-100-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5272BCPZ-100-RL7, 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 AD5272BCPZ-100-RL7 part is unused and in its original packaging.
Return procedure for AD5272BCPZ-100-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD5272BCPZ-100-RL7 Tags
-
MCP4018T-103E/LT
Microchip Technology
-
MCP4018T-503E/LT
Microchip Technology
-
MCP4011T-103E/SN
Microchip Technology
-
MCP4018T-104E/LT
Microchip Technology
-
MCP4017T-503E/LT
Microchip Technology
-
MCP4018T-502E/LT
Microchip Technology
-
MCP4017T-103E/LT
Microchip Technology
-
MCP4531T-103E/MF
Microchip Technology
-
MCP4021T-202E/SN
Microchip Technology
-
MCP4023T-103E/CH
Microchip Technology
-
MCP4022T-503E/CH
Microchip Technology
-
MCP4551T-502E/MS
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…
