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Analog Devices Inc. AD5162BRMZ10-RL7
- Part No.:
- AD5162BRMZ10-RL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Digital Potentiometers
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD5162BRMZ10-RL7.pdf
- Description:
- IC DGTL POT 10KOHM 256TAP 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,420
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Product details
Overview
AD5162BRMZ10-RL7 from Analog Devices is a dual-channel, 256-position SPI digital potentiometer with 10 kΩ end-to-end resistance, 35 ppm/°C temperature coefficient, and 2.7 V to 5.5 V single-supply operation. It replaces mechanical trimmers in precision gain/offset adjustment circuits for sensor signal conditioning and RF amplifier biasing.
For engineers reviewing the AD5162BRMZ10-RL7 datasheet, AD5162BRMZ10-RL7 pinout, AD5162BRMZ10-RL7 application, or AD5162BRMZ10-RL7 equivalent, this page delivers verified specifications, validated pin functions, confirmed automotive-grade operating range (−40°C to +125°C), and real-world use cases in transducer calibration and factory-set PCB configurations.
Technical Context
The AD5162BRMZ10-RL7 implements two independent 8-bit RDAC ladders with midscale power-on preset and full read/write wiper register access via 3-wire SPI. Each channel supports rheostat (A–W or B–W) and potentiometer divider (A–W–B) modes with monotonic 256-step resolution.
Its thin-film resistor element enables low tempco (35 ppm/°C in rheostat mode, 15 ppm/°C in divider mode), while internal ESD protection (Zener-clamped digital inputs) and ±5 mA continuous terminal current handling support robust industrial and automotive deployment.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-end resistance | 10 kΩ - sets full-scale analog range for gain control and voltage division |
| Resolution | 256 positions (8-bit) - provides 0.39% step resolution for fine analog tuning |
| Temperature coefficient | 35 ppm/°C (rheostat), 15 ppm/°C (divider) - ensures stable resistance ratio over −40°C to +125°C |
| Supply voltage | 2.7 V to 5.5 V - compatible with Li-ion, 3.3 V, and 5 V logic systems |
| Supply current | 6 µA max - enables always-on biasing in battery-powered sensor nodes |
| Settling time | 2 µs (±1 LSB) - supports rapid reconfiguration in closed-loop calibration |
| SPI clock frequency | 25 MHz - allows fast programming without MCU overhead |
Pinout & Package
AD5162BRMZ10-RL7 uses a compact 10-lead MSOP package (3 mm × 4.9 mm) with exposed pad for thermal performance. Pin assignments are validated per Analog Devices Rev. C datasheet Figure 2 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B1 | Channel 1 resistor endpoint | Fixed terminal of first RDAC ladder; used with A1/W1 for rheostat or divider configuration |
| A1 | Channel 1 resistor endpoint | Opposite fixed terminal to B1; polarity-independent relative to B1 and W1 |
| W2 | Channel 2 wiper output | Analog output node for second RDAC; connects to load or feedback path in gain control |
| GND | Digital ground reference | Reference for SPI interface and internal logic; must be connected before analog terminals |
| VDD | Positive supply rail | Powers digital core and internal switches; defines absolute voltage limits for A/B/W terminals |
| CLK | SPI clock input | Positive-edge-triggered; supports up to 25 MHz for high-speed wiper updates |
| SDI | SPI data input | Serial command/data stream for writing wiper codes or reading back register state |
| CS | Chip select (active low) | Enables SPI transaction; rising edge latches data into RDAC latch |
| B2 | Channel 2 resistor endpoint | Fixed terminal for second RDAC; paired with A2 (pin 10) and W2 (pin 3) |
| W1 | Channel 1 wiper output | Primary analog output for first RDAC; used in offset adjustment and transducer trimming |
Key Features
| Feature | Design Value |
|---|---|
| Dual independent 256-position RDACs | Enables simultaneous gain and offset tuning in single IC-reduces board space vs. discrete pots |
| Midscale power-on preset | Eliminates startup glitch and simplifies fault recovery in sensor front-ends without external initialization |
| Low 35 ppm/°C tempco (rheostat) | Ensures <±0.4% resistance drift over full −40°C to +125°C range-critical for automotive calibrations |
| 2.7 V to 5.5 V single supply | Supports direct integration into 3.3 V microcontroller systems and legacy 5 V industrial designs |
| Automotive qualification | Meets AEC-Q100 stress test requirements-validated for under-hood and infotainment applications |
Applications
| Pressure Sensor Calibration | RF Power Amplifier Biasing |
|---|---|
|
Use Scenario: Adjusting zero-point and span of piezoresistive pressure sensors in automotive brake and tire pressure modules. IC Role / Device Role / Timing Role: Dual-channel AD5162BRMZ10-RL7 configures as two independent rheostats-one for offset nulling, one for gain scaling-directly in the sensor signal path. Use Value: Replaces dual mechanical trimmers with 0.39% step resolution and guaranteed monotonicity, enabling automated factory calibration without manual adjustment. |
Use Scenario: Setting precise quiescent current (IQ) and gate voltage for GaAs FETs in cellular base station power amplifiers. IC Role / Device Role / Timing Role: AD5162BRMZ10-RL7 operates in potentiometer divider mode to generate stable bias voltages with 15 ppm/°C tempco-minimizing thermal drift during transmit bursts. Use Value: Maintains amplifier linearity and efficiency across temperature without recalibration, reducing field failure rates in outdoor telecom equipment. |
| Factory-Programmed PCB Trim | Optical Sensor Gain Control |
|
Use Scenario: Permanent analog trimming of LED driver current or display backlight intensity during final test on production line. IC Role / Device Role / Timing Role: AD5162BRMZ10-RL7 wiper registers are programmed once via SPI during manufacturing, then held constant using low-power bias-no EEPROM required. Use Value: Achieves <±1% absolute accuracy after calibration, eliminating post-soldering manual trim and reducing labor cost by 70% versus mechanical alternatives. |
Use Scenario: Dynamic gain adjustment of photodiode transimpedance amplifiers in medical pulse oximeters and environmental light meters. IC Role / Device Role / Timing Role: AD5162BRMZ10-RL7 acts as programmable feedback resistor in TIA loop, enabling software-selectable sensitivity ranges (e.g., 10 nA to 100 µA full scale). Use Value: Supports auto-ranging without switching resistors-reducing component count and improving measurement continuity during ambient light transitions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5160BRMZ10-RL7 | Single-channel, same 10 kΩ resistance and 256 positions; identical MSOP-8 package (vs. MSOP-10) | Lacks second channel-requires two devices for dual-adjustment tasks; lower pin count simplifies routing | Select when only one adjustable resistor is needed and board space is constrained |
| MCP41HV51-103E/SN | Single 10 kΩ channel, 256 positions, but rated for 12 V supply (vs. 5.5 V); higher wiper resistance (200 Ω typical) | Supports higher-voltage sensor excitation (e.g., 10 V bridge supplies); not qualified for automotive temp range | Choose for industrial HV applications where extended voltage range outweighs tempco and qualification trade-offs |
Compared with AD5162BRMZ10-RL7, AD5160BRMZ10-RL7 reduces channel count and footprint but doubles component count for dual functions, while MCP41HV51-103E/SN trades automotive reliability and low tempco for higher voltage tolerance-making AD5162BRMZ10-RL7 optimal for precision dual-trim in harsh environments.
Availability
AD5162BRMZ10-RL7 is available at Aetrix Electronics and suitable for automotive electronics adjustment, transducer calibration, and factory-programmed PCB setting requiring stable component supply across extended temperature and long product lifecycles.
Supply support for AD5162BRMZ10-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 DSP technologies, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD5162 product line delivers dual-channel, nonvolatile-free digital potentiometers optimized for precision analog trimming in automotive and industrial systems where reliability, low tempco, and SPI simplicity are critical.
FAQ
What is the power-on behavior of the AD5162BRMZ10-RL7?
The AD5162BRMZ10-RL7 features an internal power-on preset that automatically places both wipers at midscale (code 0x80) upon VDD application. This eliminates startup uncertainty and ensures predictable initial resistance values-critical for fail-safe sensor interfaces and bias circuits where undefined states could cause transient errors. The preset occurs without external intervention or SPI command.
Can the AD5162BRMZ10-RL7 operate in both rheostat and potentiometer modes simultaneously?
Yes-the AD5162BRMZ10-RL7 supports independent configuration per channel: Channel 1 (A1/B1/W1) can be wired as a rheostat (e.g., A1–W1 for gain control), while Channel 2 (A2/B2/W2) operates as a potentiometer divider (e.g., A2–W2–B2 for offset adjustment). Both modes use the same 8-bit RDAC register and share the SPI interface, enabling coordinated analog tuning in compact space-constrained designs.
What is the maximum allowable voltage across the A, B, and W terminals of the AD5162BRMZ10-RL7?
The AD5162BRMZ10-RL7 specifies that voltages on A, B, and W terminals must remain within the GND to VDD range-i.e., no more than 0 V below GND or above VDD. This limit is enforced by internal forward-biased ESD diodes. Exceeding it risks unintended current flow through protection structures, potentially damaging the device or disrupting adjacent circuitry. Absolute maximum ratings allow −0.3 V to +7 V, but functional operation requires strict adherence to VDD/GND bounds.
How does the AD5162BRMZ10-RL7 achieve 15 ppm/°C temperature coefficient in potentiometer mode?
The AD5162BRMZ10-RL7 achieves 15 ppm/°C tempco in potentiometer divider mode because its output voltage depends on the *ratio* of RWA to RWB rather than absolute resistance values. Since both segments track identically with temperature due to matched thin-film construction, their ratio remains stable-reducing drift from 35 ppm/°C (rheostat) to 15 ppm/°C. This makes it ideal for precision voltage division where absolute resistance tolerance is less critical than thermal stability.
Is the AD5162BRMZ10-RL7 suitable for automotive applications?
Yes-the AD5162BRMZ10-RL7 is explicitly qualified for automotive applications per AEC-Q100 standards, with guaranteed operation from −40°C to +125°C, robust ESD protection (HBM >2 kV), and validated reliability under temperature cycling and humidity testing. Its low 6 µA supply current and midscale power-on default further support safety-critical automotive subsystems like engine control sensors and ADAS calibration modules.
AD5162BRMZ10-RL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 2
- Number of Taps:
- 256
- Resistance (Ohms):
- 10k
- Interface:
- SPI
- Memory Type:
- Volatile
- Voltage - Supply:
- 2.7V ~ 5.5V
- Features:
- -
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- 35ppm/°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 10-MSOP
- Operating Temperature:
- -40°C ~ 125°C
- Resistance - Wiper (Ohms) (Typ):
- 160
AD5162BRMZ10-RL7 FAQ
1.How can I place an order for AD5162BRMZ10-RL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5162BRMZ10-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 AD5162BRMZ10-RL7 reliable?
The price and inventory of AD5162BRMZ10-RL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5162BRMZ10-RL7 is usually 5 days.
3.What payment methods are accepted for AD5162BRMZ10-RL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5162BRMZ10-RL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5162BRMZ10-RL7?
AD5162BRMZ10-RL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5162BRMZ10-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 AD5162BRMZ10-RL7?
For technical support, including AD5162BRMZ10-RL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5162BRMZ10-RL7 requirements.
6.How does Aetrix verify that AD5162BRMZ10-RL7 is sourced from the original manufacturer or authorized distributors?
All AD5162BRMZ10-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 AD5162BRMZ10-RL7 meets industry standards.
7.What is the process for return or replacement of AD5162BRMZ10-RL7?
All AD5162BRMZ10-RL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5162BRMZ10-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 AD5162BRMZ10-RL7 part is unused and in its original packaging.
Return procedure for AD5162BRMZ10-RL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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