My Inquiry
My Account
Analog Devices Inc. AD5171BRJZ5-R7
- Part No.:
- AD5171BRJZ5-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- SOT-23-8
- Datasheet:
-
AD5171BRJZ5-R7.pdf
- Description:
- IC DGTL POT 5KOHM 64TAP SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:3,270
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD5171BRJZ5-R7 from Analog Devices is a 64-position, one-time programmable (OTP) digital potentiometer in an 8-lead SOT-23 package, offering 5 kΩ end-to-end resistance, I²C-compatible interface, −40°C to +125°C automotive temperature range, and 5 ppm/°C tempco in potentiometer mode. It replaces mechanical trimmers in factory-set calibration circuits where permanent resistance values are required.
For engineers reviewing the AD5171BRJZ5-R7 datasheet, AD5171BRJZ5-R7 pinout, AD5171BRJZ5-R7 application, or AD5171BRJZ5-R7 equivalent, key selection criteria include OTP validation status bits (E1/E0), fuse-blow voltage requirement (4.75–5.25 V), wiper resistance (60–115 Ω), rheostat vs. potentiometer mode tempco divergence, and I²C address flexibility via AD0 pin.
Technical Context
The AD5171BRJZ5-R7 implements fuse-link OTP memory using six data fuses, one test fuse, and one programming lock fuse-enabling irreversible resistance setting after final calibration. Its I²C interface supports standard-mode (400 kHz) timing with AD0 pin allowing dual-device addressing on a shared bus.
It operates in two primary analog configurations: potentiometer mode (three-terminal, ratiometric voltage division with 5 ppm/°C tempco) and rheostat mode (two-terminal, variable resistance with 35 ppm/°C tempco). Settling time is 5 μs typical, and power supply rejection ratio exceeds 60 dB at 100 Hz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 6-bit (64 positions), enabling discrete step control of resistance or voltage division ratio. |
| End-to-End Resistance | 5 kΩ - defines maximum rheostat resistance and sets gain/offset scaling range in analog circuits. |
| Tempco (Potentiometer Mode) | 5 ppm/°C - ensures stable voltage division across −40°C to +125°C, critical for automotive sensor signal conditioning. |
| Tempco (Rheostat Mode) | 35 ppm/°C - acceptable for non-ratiometric biasing or current-setting where absolute resistance drift is less critical. |
| I²C Interface | Standard-mode (400 kHz), with AD0 pin for dual-device addressing - eliminates need for external multiplexers in multi-pot systems. |
| OTP Supply Requirement | 4.75–5.25 V @ 100 mA for 400 ms - mandates dedicated OTP programming voltage rail; incompatible with 3.3 V-only systems without level-shifting. |
| Wiper Resistance | 60–115 Ω - contributes fixed offset in low-code rheostat operation and affects zero-scale accuracy in precision current sources. |
Pinout & Package
AD5171BRJZ5-R7 is housed in a compact 8-lead SOT-23 package (2.9 mm × 1.6 mm × 1.1 mm), optimized for space-constrained automotive and industrial PCBs. Pin 1 is W (wiper), pin 2 is VDD, pin 3 is GND, pin 4 is SCL, pin 5 is SDA, pin 6 is AD0, pin 7 is B, and pin 8 is A.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| W (Pin 1) | Wiper output | Provides adjustable voltage (potentiometer) or variable resistance (rheostat); must be routed with low-capacitance trace to preserve 1.5 MHz bandwidth in 5 kΩ parts. |
| VDD (Pin 2) | Power supply input | Operates from 2.7–5.5 V; requires separate 4.75–5.25 V source during OTP programming - not compatible with same rail used for normal operation if VDD < 4.75 V. |
| GND (Pin 3) | Reference ground | Common return for all analog terminals (A, B, W) and digital I/O; must be low-impedance to minimize noise coupling into wiper path. |
| SCL (Pin 4) | I²C clock input | Requires external pull-up resistor; VIH minimum = 0.7 × VDD - fails logic high detection if driven directly from 1.8 V MCU without level shift. |
| SDA (Pin 5) | I²C bidirectional data | Open-drain output; requires pull-up; shares bus with other I²C devices; supports full read/write of wiper register and OTP validation bits. |
| AD0 (Pin 6) | Device address bit | Configures I²C slave address: AD0 = low → 0x2C, AD0 = high → 0x2D - enables dual AD5171BRJZ5-R7 placement on single bus without address conflict. |
| B (Pin 7) | Resistor terminal B | Fixed end of resistive ladder; tied to GND in most potentiometer configurations; current-limited to ±5 mA continuous in rheostat mode. |
| A (Pin 8) | Resistor terminal A | Fixed end of resistive ladder; typically connected to VDD or signal source; polarity unrestricted relative to B or W per Absolute Maximum Ratings. |
Key Features
| Feature | Design Value |
|---|---|
| One-time programmable (OTP) memory | Fuse-link technology provides permanent, tamper-resistant resistance setting - eliminates EEPROM wear-out and reduces BOM cost versus EEMEM-based pots. |
| Full read/write wiper register | Enables unlimited pre-OTP adjustments and post-programming verification - supports factory calibration loops without hardware rework. |
| OTP validation check function | E1/E0 status bits confirm fuse blow success (11), failure (10), or readiness (00) - prevents field deployment of unprogrammed or partially programmed units. |
| Low power consumption | IDD ≤ 10 μA max - suitable for always-on automotive modules (e.g., battery monitoring) where quiescent current impacts system sleep budget. |
| Automotive temperature grade | Guaranteed operation from −40°C to +125°C - qualified for under-hood and infotainment applications without derating. |
Applications
| System Calibration | Transducer Signal Conditioning |
|---|---|
Use Scenario: Factory-trimmed offset/gain in automotive pressure sensor front-ends where final calibration occurs before module sealing. IC Role / Device Role / Timing Role: AD5171BRJZ5-R7 acts as a nonvolatile gain-setting resistor in an instrumentation amplifier feedback network. Use Value: Eliminates manual potentiometer adjustment and epoxy sealing; OTP lock ensures calibration integrity over 15-year vehicle lifetime. |
Use Scenario: Linearization of thermistor-based cabin temperature sensors in HVAC control units. IC Role / Device Role / Timing Role: AD5171BRJZ5-R7 configures programmable voltage divider in analog sensor excitation path. Use Value: Enables batch-specific compensation curves stored during production; 5 ppm/°C tempco maintains accuracy across full automotive temperature range. |
| Mechanical Trimmer Replacement | Programmable Filter Tuning |
Use Scenario: Replacement of through-hole trimpots in engine control unit (ECU) power supply feedback loops. IC Role / Device Role / Timing Role: AD5171BRJZ5-R7 serves as rheostat-mode current-sense resistor in adjustable LDO bias network. Use Value: Reduces PCB area by >80% vs. mechanical trimmer; OTP prevents field tampering or vibration-induced drift. |
Use Scenario: Factory-tuned cutoff frequency in anti-aliasing filters for CAN FD transceiver analog front-ends. IC Role / Device Role / Timing Role: AD5171BRJZ5-R7 sets RC time constant in 2nd-order Sallen-Key topology (5 kΩ version supports up to 1.5 MHz BW). Use Value: Achieves ±1% filter corner accuracy without laser trimming; I²C interface allows automated test equipment to load optimal code during functional test. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5170BRJZ5-R7 | Same OTP architecture and pinout, but 10 kΩ end-to-end resistance; higher wiper resistance (75–130 Ω); 35 ppm/°C rheostat tempco unchanged. | Preferred for higher-impedance gain-setting networks where 5 kΩ causes excessive loading on op-amp inputs. | Select AD5170BRJZ5-R7 when circuit analysis shows 5 kΩ introduces >0.1% gain error due to op-amp input bias current. |
| MCP41HV51-502E/SN | Nonvolatile EEMEM-based (not OTP); 50 kΩ end-to-end; SPI interface; 100 ppm/°C tempco; no AD0 pin for dual addressing. | Suitable for applications requiring field reprogramming or dynamic recalibration - e.g., adaptive lighting control with runtime ambient sensing. | Choose MCP41HV51-502E/SN only if reprogrammability is mandatory; AD5171BRJZ5-R7 offers lower tempco and smaller footprint for set-and-forget use cases. |
Compared with AD5170BRJZ5-R7, AD5171BRJZ5-R7 provides tighter tempco in potentiometer mode (5 vs. 15 ppm/°C) and lower wiper resistance, improving low-code accuracy. Versus MCP41HV51-502E/SN, AD5171BRJZ5-R7 trades reprogrammability for superior stability, smaller size, and deterministic OTP lock - critical for safety-critical automotive calibrations.
Availability
AD5171BRJZ5-R7 is available at Aetrix Electronics and suitable for automotive sensor calibration, industrial transducer signal conditioning, mechanical trimmer replacement, and programmable filter tuning requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for AD5171BRJZ5-R7 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 leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control systems.
The AD5171BRJZ5-R7 belongs to Analog Devices' OTP digital potentiometer family, designed specifically for factory-programmed, maintenance-free resistance setting in automotive, industrial, and medical applications where EEPROM endurance or volatility is unacceptable.
FAQ
What is the OTP programming voltage requirement for AD5171BRJZ5-R7?
The AD5171BRJZ5-R7 requires a dedicated OTP supply of 4.75 V to 5.25 V capable of delivering 100 mA for 400 ms. This is distinct from its operating supply (2.7–5.5 V). Using the main VDD rail for OTP is only valid if it meets both voltage and current specifications - otherwise, a separate OTP programming rail is mandatory. Failure to meet this spec risks incomplete fuse blowing and invalid E1/E0 status bits.
How does AD5171BRJZ5-R7 validate successful OTP programming?
The AD5171BRJZ5-R7 exposes two OTP validation bits (E1 and E0) readable via I²C. Status 11 indicates successful programming and lock; 10 signals fatal fuse failure (discard unit); 00 means ready for programming; 01 is reserved for factory test. Engineers must read these bits post-programming - AD5171BRJZ5-R7 does not auto-verify or retry - to confirm permanent setting integrity before system integration.
Can AD5171BRJZ5-R7 operate in both potentiometer and rheostat modes?
Yes, AD5171BRJZ5-R7 supports both configurations. In potentiometer mode (A–W–B), it delivers ratiometric voltage division with 5 ppm/°C tempco. In rheostat mode (W–B or W–A), it functions as a two-terminal variable resistor with 35 ppm/°C tempco and 60–115 Ω wiper resistance. The mode is determined by external connections - no internal configuration bits are required.
What is the maximum bandwidth achievable with AD5171BRJZ5-R7?
The −3 dB bandwidth of AD5171BRJZ5-R7 depends on end-to-end resistance: 1.5 MHz for 5 kΩ parts, 600 kHz for 10 kΩ, 110 kHz for 50 kΩ, and 60 kHz for 100 kΩ - all measured at midscale (code 0x20). Bandwidth scales inversely with RAB; thus, AD5171BRJZ5-R7's 5 kΩ variant is specified for programmable filter applications up to 1.5 MHz, as confirmed in the datasheet's Figure 14.
Does AD5171BRJZ5-R7 support multiple devices on a single I²C bus?
Yes, AD5171BRJZ5-R7 includes an AD0 pin that selects between two I²C addresses: 0x2C (AD0 = low) and 0x2D (AD0 = high). This allows two AD5171BRJZ5-R7 devices to share one I²C bus without address collision. No additional hardware (e.g., multiplexers) is needed - simplifying multi-channel calibration architectures in ECUs and industrial PLCs.
AD5171BRJZ5-R7 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):
- 5k
- Interface:
- I2C
- Memory Type:
- OTP
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- Selectable Address
- Tolerance:
- ±30%
- Temperature Coefficient (Typ):
- 35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- SOT-23-8
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 60
AD5171BRJZ5-R7 FAQ
1.How can I place an order for AD5171BRJZ5-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5171BRJZ5-R7 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 AD5171BRJZ5-R7 reliable?
The price and inventory of AD5171BRJZ5-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5171BRJZ5-R7 is usually 5 days.
3.What payment methods are accepted for AD5171BRJZ5-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5171BRJZ5-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5171BRJZ5-R7?
AD5171BRJZ5-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5171BRJZ5-R7 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 AD5171BRJZ5-R7?
For technical support, including AD5171BRJZ5-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5171BRJZ5-R7 requirements.
6.How does Aetrix verify that AD5171BRJZ5-R7 is sourced from the original manufacturer or authorized distributors?
All AD5171BRJZ5-R7 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 AD5171BRJZ5-R7 meets industry standards.
7.What is the process for return or replacement of AD5171BRJZ5-R7?
All AD5171BRJZ5-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5171BRJZ5-R7, 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 AD5171BRJZ5-R7 part is unused and in its original packaging.
Return procedure for AD5171BRJZ5-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD5171BRJZ5-R7 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…
