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Analog Devices Inc./Maxim Integrated DS1267-010
- Part No.:
- DS1267-010
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Digital Potentiometers
- Package:
- 14-DIP (0.300", 7.62mm)
- Datasheet:
-
DS1267-010.pdf
- Description:
- IC DGTL POT 10KOHM 256TAP 14DIP
- Quantity:
- Payment:
- Shipping:
Inventory:2,497
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Product details
Overview
DS1267-010 from Maxim Integrated (formerly Dallas Semiconductor) is a dual 256-position digital potentiometer with 10 kΩ end-to-end resistance, 1 MHz –3 dB bandwidth, ±0.75 LSB absolute linearity, and industrial temperature range (–40°C to +85°C). It implements two independent digitally controlled resistive arrays for precision gain/attenuation control in analog signal paths.
For engineers reviewing the DS1267-010 datasheet, DS1267-010 pinout, DS1267-010 application, or DS1267-010 equivalent, this device supports 3-wire serial configuration, stacked (512-step) and cascaded multi-device operation, and operates from a single +5 V supply with ultra-low standby current (22 µA).
Technical Context
The DS1267-010 integrates two matched 256-tap resistor arrays with wiper positions set via an 17-bit shift register accessed through RST/CLK/DQ serial interface. Its substrate bias (VB) enables extended voltage range on resistor terminals, and SOUT/COUT pins support stacked output and daisy-chained read/write operations.
Each potentiometer offers temperature-compensated relative linearity of ±0.3 LSB and supports series connection to double resolution to 9 bits. The device uses pumpless architecture-no internal charge pump-enabling quiet, low-power analog control without switching noise injection into sensitive signal paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| End-to-End Resistance | 10 kΩ - defines full-scale analog range for gain/attenuation circuits |
| –3 dB Bandwidth | 1 MHz - supports audio-frequency and medium-speed control loops |
| Wiper Resolution | 256 positions per potentiometer - 8-bit granularity for precise analog tuning |
| Absolute Linearity | ±0.75 LSB - ensures <±1.2% voltage error across full wiper sweep at 25°C |
| Supply Current (Active) | 22–650 µA - scales with CLK frequency; enables battery-operated designs |
| Operating Voltage | +4.5 V to +5.5 V - compatible with standard 5 V logic and analog rails |
| Temperature Range | –40°C to +85°C - qualified for industrial-grade embedded systems |
Pinout & Package
DS1267-010 is packaged in 16-pin SOIC (300-mil) with exposed pad not present; pinout matches standard 16-pin SOIC footprint and is electrically identical across DS1267 variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCC | Positive supply input | Connects to +5 V rail; powers internal logic and resistor array biasing |
| GND | Ground reference | Common return for supply, logic, and analog sections |
| RST | Serial port enable | High-active signal initiating 3-wire transaction; must transition low to latch new wiper values |
| CLK | Serial clock input | Drives data sampling on rising edge; supports up to 10 MHz operation |
| DQ | Serial bidirectional data | Input for write commands; floats during read-back via COUT feedback path |
| SOUT | Stacked wiper output | Provides multiplexed W0/W1 output selected by stack bit; used in series-resistor configurations |
| COUT | Cascade output | Shift-register echo output enabling daisy-chain read/write without external latching |
| H0, H1 | Resistor high ends | Analog terminals defining top of each 10 kΩ resistive ladder |
| L0, L1 | Resistor low ends | Analog terminals defining bottom of each resistive ladder; referenced to VB or GND |
| W0, W1 | Wiper outputs | Digitally selectable tap points; drive high-impedance loads to minimize wiper resistance error |
| VB | Substrate bias | Allows resistor terminal swing below GND (down to –5.5 V), extending analog range |
| NC | No internal connection | Two pins (pins 2 and 15) are unconnected; must remain floating or tied to GND per layout guidance |
Key Features
| Feature | Design Value |
|---|---|
| Pumpless architecture | Eliminates charge-pump switching noise, critical for low-noise audio and sensor front-ends |
| Stacked configuration | Enables 512-step resolution (9-bit effective) by connecting both pots in series via SOUT |
| Daisy-chain capability | Supports multi-device control over single 3-wire bus using COUT-to-DQ interconnection |
| Temperature-compensated linearity | ±0.3 LSB relative linearity maintained across –40°C to +85°C operating range |
| Low standby current | 22 µA typical - extends battery life in portable instrumentation and remote sensors |
Applications
| Audio Gain Control | Inverting Variable-Gain Amplifier |
|---|---|
Use Scenario: Programmable volume control in professional audio mixers requiring silent, stepless adjustment without relay click or DAC-induced glitches. IC Role / Device Role / Timing Role: Dual-potentiometer replaces mechanical pots; one section sets feedback ratio, the other adjusts input attenuation. Use Value: 1 MHz bandwidth preserves audio fidelity up to 20 kHz; ±0.3 LSB linearity ensures consistent channel balance across all settings. |
Use Scenario: Precision programmable gain stage in test equipment where gain must be calibrated and recalled digitally. IC Role / Device Role / Timing Role: DS1267-010 serves as digitally addressed resistive divider in op-amp feedback loop; gain formula Av = –n/(255–n) applies directly. Use Value: 10 kΩ resistance and 256-step resolution yield 0.4% minimum gain increment; wiper resistance variation (400–1000 Ω) is negligible due to high-impedance op-amp input. |
| Fixed-Gain Signal Attenuator | Industrial Sensor Calibration |
Use Scenario: Factory-trimmable input scaling for 4–20 mA transmitters interfacing with ADCs having fixed reference voltages. IC Role / Device Role / Timing Role: DS1267-010 configured as two-terminal variable resistor (H0–W0) to set attenuation ratio before signal conditioning. Use Value: ±20% end-to-end tolerance accommodated by calibration routine; 10 kΩ value minimizes loading on current-loop sources. |
Use Scenario: Field-reconfigurable offset/gain trim in temperature or pressure sensor modules deployed in harsh environments. IC Role / Device Role / Timing Role: One potentiometer adjusts zero-point offset; the other fine-tunes span calibration - both stored nonvolatilely via microcontroller. Use Value: Industrial temperature rating (–40°C to +85°C) and 22 µA standby current ensure long-term stability in unattended remote nodes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual digital potentiometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD5232BRUZ10 | Nonvolatile EEPROM storage; SPI interface; 10 kΩ; 256 taps; ±30% resistance tolerance | Requires no external controller for power-on wiper restore; lacks cascade capability and VB pin | Preferred when power-cycle retention is mandatory and daisy-chaining is unnecessary |
| MCP42010-I/P | Volatile RAM-based; SPI interface; 10 kΩ; 256 taps; ±20% tolerance; no substrate bias or cascade output | Lower cost; simpler interface but no stacked mode or extended analog voltage range | Best for cost-sensitive consumer applications where VB and COUT features are unused |
Compared with AD5232BRUZ10 and MCP42010-I/P, DS1267-010 uniquely supports substrate-biased resistor operation (VB), hardware-cascaded multi-device control (COUT), and stacked 512-step resolution - making it optimal for industrial analog signal conditioning where flexibility and analog integrity outweigh nonvolatile storage needs.
Availability
DS1267-010 is available at Aetrix Electronics and suitable for industrial sensor calibration, audio gain control, programmable attenuators, and embedded analog front-end trimming requiring stable component supply and long-lifecycle assurance.
Supply support for DS1267-010 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
Maxim Integrated (now part of Analog Devices) designs precision analog and mixed-signal ICs for industrial, automotive, and communications applications, emphasizing low-power, high-reliability performance.
The DS1267-010 belongs to Maxim's digital potentiometer family engineered for replacing mechanical trimmers in analog signal-path tuning - prioritizing linearity, temperature stability, and flexible serial configurability over nonvolatile storage.
FAQ
What is the maximum clock frequency supported by DS1267-010?
The DS1267-010 supports a maximum serial clock frequency of 10 MHz, as specified in its AC Electrical Characteristics table. This allows fast wiper updates - for example, a full 17-bit write completes in under 1.7 µs. The DS1267-010 maintains timing compliance across its full industrial temperature range (–40°C to +85°C) and supply range (+4.5 V to +5.5 V), ensuring reliable communication in real-time control loops.
Does DS1267-010 retain wiper settings after power loss?
No, DS1267-010 is a volatile digital potentiometer: wiper positions reset to mid-scale (128, or 50% resistance) on power-up. It does not include EEPROM or flash memory. To preserve settings, the host microcontroller must reinitialize the DS1267-010 via its 3-wire interface at startup. This behavior is inherent to the DS1267-010 design and distinguishes it from nonvolatile alternatives like the AD5232.
Can DS1267-010 operate with resistor terminals biased below ground?
Yes - the DS1267-010 supports analog terminal biasing below ground via its VB (substrate bias) pin, which can be driven to –5.5 V. When VB = –5.5 V, resistor pins (H0, L0, W0, etc.) tolerate voltages from –5.5 V to +7.0 V. This capability enables bipolar signal handling and extended dynamic range in precision instrumentation, a feature not found in most competing digital potentiometers such as the MCP42010.
How does the stacked configuration work on DS1267-010?
In stacked mode, DS1267-010 connects its two 10 kΩ potentiometers in series, yielding 20 kΩ total end-to-end resistance and 512 discrete steps (9-bit effective resolution). The SOUT pin outputs either W0 or W1 based on the stack-select bit (bit 0 of the 17-bit shift register). This configuration is hardware-enabled - no external components required - and is unique to the DS1267-010 among dual-pot families.
What is the wiper resistance specification for DS1267-010?
The DS1267-010 specifies wiper resistance (RW) from 400 Ω to 1000 Ω, depending on wiper voltage and process variation. This parameter is critical when driving low-impedance loads: for minimal error, the load impedance should exceed 100× RW (i.e., >100 kΩ). The DS1267-010's datasheet recommends high-impedance connections - such as op-amp inputs - to avoid gain inaccuracy caused by RW variation.
DS1267-010 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 14-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Taper:
- Linear
- Configuration:
- Potentiometer
- Number of Circuits:
- 2
- Number of Taps:
- 256
- Resistance (Ohms):
- 10k
- Interface:
- Serial
- Memory Type:
- Volatile
- Voltage - Supply:
- 5V
- Features:
- Cascade Pin
- Tolerance:
- ±20%
- Temperature Coefficient (Typ):
- 750ppm/°C
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-PDIP
- Operating Temperature:
- -40°C ~ 85°C
- Resistance - Wiper (Ohms) (Typ):
- 400
DS1267-010 FAQ
1.How can I place an order for DS1267-010 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS1267-010 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 DS1267-010 reliable?
The price and inventory of DS1267-010 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS1267-010 is usually 5 days.
3.What payment methods are accepted for DS1267-010?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS1267-010 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS1267-010?
DS1267-010 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS1267-010 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 DS1267-010?
For technical support, including DS1267-010 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS1267-010 requirements.
6.How does Aetrix verify that DS1267-010 is sourced from the original manufacturer or authorized distributors?
All DS1267-010 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 DS1267-010 meets industry standards.
7.What is the process for return or replacement of DS1267-010?
All DS1267-010 units undergo pre-shipment inspection (PSI). If there is an issue with DS1267-010, 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 DS1267-010 part is unused and in its original packaging.
Return procedure for DS1267-010:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DS1267-010 Tags
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