AD5142
Dual Channel, 256-Position, SPI, Nonvolatile Digital Potentiometer
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Features
- 10 kΩ and 100 kΩ resistance options
- Resistor tolerance: ±8% maximum
- Wiper current: ±6 mA
- Low temperature coefficient: 35 ppm/°C
- Wide bandwidth: 3 MHz
- Fast start-up time <75 μs
- Linear gain setting mode
- Single- and dual-supply operation
- Independent logic supply: 1.8 V to 5.5 V
- Wide operating temperature: −40°C to +125°C
- 3 mm × 3 mm package option
- Qualified for automotive applications
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The AD5122/AD5142 potentiometers provide a nonvolatile solution for 128-/256-position adjustment applications, offering guaranteed low resistor tolerance errors of ±8% and up to ±6 mA current density in the Ax, Bx, and Wx pins.
The low resistor tolerance and low nominal temperature coefficient simplify open-loop applications as well as applications requiring tolerance matching.
The linear gain setting mode allows independent programming of the resistance between the digital potentiometer terminals through the RAW and RWB string resistors, allowing accurate resistor matching.
The high bandwidth and low total harmonic distortion (THD) ensure optimal performance for ac signals, making these devices suitable for filter design.
The low wiper resistance of only 40 Ω at the ends of the resistor array allows for pin to pin connection.
The wiper values can be set through an SPI-compatible digital interface that also reads back the wiper register and EEPROM contents.
The AD5122/AD5142 is available in a compact, 16-lead, 3 mm × 3 mm LFCSP and a 16-lead TSSOP. The parts are guaranteed to operate over the extended industrial temperature range of −40°C to +125°C.
Applications
- Portable electronics level adjustment
- LCD panel brightness and contrast controls
- Programmable filters, delays, and time constants
- Programmable power supplies
Ask a Question
Submit your question below and we will return the best answer from ADI’s knowledge database:
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Support
Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.
Visit the ADI Support Page
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AD5142
Documentation
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Data Sheet 1
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ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD5142BCPZ10-RL7 |
16-Lead LFCSP (3mm x 3mm w/ EP)
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| AD5142BCPZ100-RL7 |
16-Lead LFCSP (3mm x 3mm w/ EP)
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| AD5142BRUZ10 |
16-Lead TSSOP
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| AD5142BRUZ10-RL7 |
16-Lead TSSOP
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| AD5142BRUZ100 |
16-Lead TSSOP
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| AD5142BRUZ100-RL7 |
16-Lead TSSOP
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| AD5142WBCPZ10-RL7 |
16-Lead LFCSP (3mm x 3mm w/ EP)
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| AD5142WBRUZ10-RL7 |
16-Lead TSSOP
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- AD5142BCPZ10-RL7
- Pin/Package Drawing
-
16-Lead LFCSP (3mm x 3mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142BCPZ100-RL7
- Pin/Package Drawing
-
16-Lead LFCSP (3mm x 3mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142BRUZ10
- Pin/Package Drawing
-
16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142BRUZ10-RL7
- Pin/Package Drawing
-
16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142BRUZ100
- Pin/Package Drawing
-
16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142BRUZ100-RL7
- Pin/Package Drawing
-
16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142WBCPZ10-RL7
- Pin/Package Drawing
-
16-Lead LFCSP (3mm x 3mm w/ EP)
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
- AD5142WBRUZ10-RL7
- Pin/Package Drawing
-
16-Lead TSSOP
- Documentation
-
HTML
Material Declaration
-
HTML
Reliablity Data
- CAD Symbols, Footprints, and 3D Models
-
Ultra Librarian
-
SamacSys
Filter by Model
Part Models
Product Lifecycle
PCN
May 24, 2016
- 16_0097
Correction of Ilogic Maximum and Typical Specifications in the AD5122/AD5142 Datasheet
AD5142BCPZ10-RL7
PRODUCTION
AD5142BCPZ100-RL7
PRODUCTION
AD5142BRUZ10
PRODUCTION
AD5142BRUZ10-RL7
PRODUCTION
AD5142BRUZ100
PRODUCTION
AD5142BRUZ100-RL7
PRODUCTION
Aug 6, 2014
- 13_0223
Assembly and Test Transfer of Select 2x3mm and 3x3mm LFCSP Products to STATS ChipPAC China
AD5142BCPZ10-RL7
PRODUCTION
AD5142BCPZ100-RL7
PRODUCTION
Apr 5, 2021
- 21_0035
Amkor Philippines as an Alternate Site for TSSOP_4.4
AD5142BRUZ10
PRODUCTION
AD5142BRUZ10-RL7
PRODUCTION
AD5142BRUZ100
PRODUCTION
AD5142BRUZ100-RL7
PRODUCTION
Filter by Model
Part Models
Product Lifecycle
PCN
May 24, 2016
- 16_0097
Correction of Ilogic Maximum and Typical Specifications in the AD5122/AD5142 Datasheet
AD5142BCPZ10-RL7
PRODUCTION
AD5142BCPZ100-RL7
PRODUCTION
AD5142BRUZ10
PRODUCTION
AD5142BRUZ10-RL7
PRODUCTION
AD5142BRUZ100
PRODUCTION
AD5142BRUZ100-RL7
PRODUCTION
Aug 6, 2014
- 13_0223
Assembly and Test Transfer of Select 2x3mm and 3x3mm LFCSP Products to STATS ChipPAC China
AD5142BCPZ10-RL7
PRODUCTION
AD5142BCPZ100-RL7
PRODUCTION
Apr 5, 2021
- 21_0035
Amkor Philippines as an Alternate Site for TSSOP_4.4
AD5142BRUZ10
PRODUCTION
AD5142BRUZ10-RL7
PRODUCTION
AD5142BRUZ100
PRODUCTION
AD5142BRUZ100-RL7
PRODUCTION
Evaluation Kits 2
EVAL-AD5142
AD5142 Evaluation Board
Product Detail
With versatile programmability, the AD5142 allows multiple modes of operation, including read/write access in the RDAC and EEMEM registers, increment / decrement of resistance, resistance changes in ±6 dB scales, wiper setting read-back, and extra EEMEM for storing user-defined information, such as memory data for other components or a lookup table.
The AD5142 supports a dual-supply ±2.25 V to ±2.75 V operation and a single-supply 2.3 V to 5.5 V operation, making the device suitable for battery-powered applications and many other applications. In addition, the AD5142 uses a versatile SPI-compatible serial interface, allowing speeds of up to 50 MHz. The EVAL-AD5142DBZ can operate in single-supply or dual-supply mode and incorporates an internal power supply from the USB.
Complete specifications for the AD5142 part can be found in the AD5142 datasheet.
Resources
EVAL-ADA4355
Evaluation System for the ADA4355
Product Detail
The ADA4355 is a complete, high performance, current input µModule®. For space savings, the ADA4355 includes all required active and passive components to comprise a complete current-to-bits data acquisition channel supporting small form-factor optical modules as well as multi-channel systems.
The high-speed TIA of the device supports 10 ns pulse widths, allowing high spatial resolution for time-of-flight measurements. Additionally, the ADA4355 includes three TIA gain (TZ) settings to maximize dynamic range. An internal, selectable, analog low-pass filter (LPF) can limit the device bandwidth with a corner frequency of 100 MHz to minimize broadband noise while also serving as an anti-aliasing filter for the 125 MSPS ADC. For lower bandwidth signals or wider signal pulses (e.g. 20μs or larger), the filter can be set to a corner frequency of 1.0 MHz to provide additional noise reduction.
The 14-bit ADC converts the amplified voltage signal at a rate of up to 125 MSPS and outputs the digitized signals through two serial, low voltage differential signaling (LVDS) data lanes, operating at rates of up to 1 Gbps per lane. The data clock output (DCO) operates at frequencies of up to 500 MHz and supports double data rate (DDR) operation.
The ADA4355 exhibits fast overdrive recovery from a large input current signal and is available in a 12 mm × 6mm CSP_BGA package with a −40°C to +85°C operating temperature range.
Applications
- Current-to-voltage Conversion
- Chemical analyzers
- Mass spectroscopy
- Time of Flight (ToF)
- Fiber optic sensing
Resources
Tools & Simulations 1
IBIS Model 1
IBIS Model
