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AD5206:  6-Channel, 256-Position Digital Potentiometer

The AD5204/AD5206 provide 4-/6-channel, 256-position digitally controlled variable resistor (VR) devices. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5204/ AD5206 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible ...More

AD5206:  6-Channel, 256-Position Digital Potentiometer

Product Description

The AD5204/AD5206 provide 4-/6-channel, 256-position digitally controlled variable resistor (VR) devices. These devices perform the same electronic adjustment function as a potentiometer or variable resistor. Each channel of the AD5204/ AD5206 contains a fixed resistor with a wiper contact that taps the fixed resistor value at a point determined by a digital code loaded into the SPI-compatible serial-input register. The resistance between the wiper and either endpoint of the fixed resistor varies linearly with respect to the digital code transferred into the VR latch. The variable resistor offers a completely programmable value of resistance between the A terminal and the wiper or the B terminal and the wiper. The fixed A-to-B terminal resistance of 10 kΩ, 50 kΩ, or 100 kΩ has a nominal temperature coefficient of 700 ppm/°C.

Each VR has its own VR latch that holds its programmed resistance value. These VR latches are updated from an internal serial-to-parallel shift register that is loaded from a standard 3-wire serial-input digital interface. Eleven data bits make up the data-word clocked into the serial input register. The first three bits are decoded to determine which VR latch is loaded with the last eight bits of the data-word when the CS strobe is returned to logic high. A serial data output pin at the opposite end of the serial register (AD5204 only) allows simple daisy chaining in multiple VR applications without requiring additional external decoding logic.

An optional reset (PR) pin forces all the AD5204 wipers to the midscale position by loading 0x80 into the VR latch.

The AD5204/AD5206 are available in the 24-lead surface-mount SOIC, TSSOP, and PDIP packages. The AD5204 is also available in a 32-lead, 5 mm × 5 mm LFCSP package. All parts are guaranteed to operate over the extended industrial temperature range of −40°C to +85°C. For additional single-, dual-, and quad-channel devices, see the AD8400/AD8402/AD8403 data sheets.

Applications
  • Mechanical potentiometer replacement
  • Instrumentation: gain, offset adjustment
  • Programmable voltage-to-current conversion
  • Programmable filters, delays, time constants
  • Line impedance matching

    • Data Sheet, Rev. B, 5/09

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    • 256 positions
    • Multiple independently programmable channels
      AD5204—4-channel
      AD5206—6-channel
    • Potentiometer replacement
    • Terminal resistance of 10 kΩ, 50 kΩ, 100 kΩ
    • 3-wire SPI-compatible serial data input
    • +2.7 V to +5.5 V single-supply operation; ±2.7 V dual-supply operation
    • Power-on midscale preset
    • # Channels: 6
    • # Positions: 256
    • Memory Type: Volatile
    • Interface: SPI
    • Resistor Values (kOhms): 10, 50, 100
    • Bipolar Voltage Range (V): ±3V
    • Voltage Range (V): +5.5V
    • Supply Current : 12µA
    • Temp. Range -40 °C to..: 85Deg
    • Absolute Tempco (ppm/°C): 700ppm/C
    • Package: PDIP,SOIC,TSSOP

    AD5206 Functional Block Diagram

    OF NOTE ...

    For additional technical information, please email the Digital Potentiometer Group and supply your name, company, mailing address, telephone/fax numbers, email address, and a brief description of your application.

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    Part# # Channels # Positions Memory Type Interface Resistor Values (kOhms) Bipolar Voltage Range (V) Voltage Range (V) Supply Current Temp. Range -40 °C to.. Absolute Tempco (ppm/°C) Price* (1000-4999)
    AD5291 1 256 Non-Volatile SPI 20 ±16.5 +33 2µA 105 35 $2.29
    AD5292 1 1,024 Non-Volatile SPI 20 ±16.5 +33 2µA 105 35 $2.62
    AD5293 1 1,024 Volatile SPI 20 ±16.5 +33 0.2µA 105 5 $2.55
    ADN2860 3 512 Non-Volatile I2C 25, 250 ±2.75 - 10µA 85 15 $5.97
    AD5228 1 32 Volatile Pushbutton 10, 50, 100 - +5.5 0.4µA 105 35 $0.34
    AD5201 1 33 Volatile SPI 10, 50 ±3 +5.5 15µA 85 500 $0.50
    AD5227 1 64 Volatile Up/Down 10, 50, 100 - +5.5 0.4µA 105 35 $0.36
    AD5246 1 128 Volatile I2C 5, 10, 50, 100 - +5.5 3µA 125 35 $0.45
    AD5247 1 128 Volatile I2C 5, 10, 50, 100 - +5.5 3µA 125 35 $0.45
    AD5220 1 128 Volatile Up/Down 10, 50, 100 - +5.5 15µA 85 800 $0.90
    AD7376 1 128 Volatile SPI 10, 50, 100, 1M ±15 +28 10µA 85 35 $2.86
    AD5160 1 256 Volatile SPI 5, 10, 50, 100 - +5.5 3µA 125 35 $0.64
    AD5165 1 256 Volatile SPI 100 - +5.5 0.05µA 125 35 $0.58
    AD5245 1 256 Volatile I2C 5, 10, 50, 100 - +5.5 3µA 125 35 $0.64
    AD5161 1 256 Volatile I2C, SPI 5, 10, 50, 100 - +5.5 3µA 125 35 $0.65
    AD5241 1 256 Volatile I2C 10, 100, 1M ±3 +5.5 0.1µA 105 30 $0.93
    AD5200 1 256 Volatile SPI 10, 50 ±3 +5.5 15µA 85 500 $0.89
    AD8400 1 256 Volatile SPI 1, 10, 50, 100 - +5.5 0.01µA 125 500 $1.13
    AD5260 1 256 Volatile SPI 20, 50, 200 ±5 +15 0.1µA 85 35 $1.80
    AD5280 1 256 Volatile I2C 20, 50, 200 ±5 +15 0.1µA 85 35 $1.80
    AD5290 1 256 Volatile SPI 10, 50, 100 ±15 +30 10µA 105 35 $1.97
    AD5222 2 128 Volatile Up/Down 10, 50, 100, 1M ±3 +5.5 15µA 85 35 $0.80
    AD5243 2 256 Volatile I2C 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.00
    AD5162 2 256 Volatile SPI 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.00
    AD5248 2 256 Volatile I2C 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.00
    AD5207 2 256 Volatile SPI 10, 50, 100 ±3 +5.5 40µA 125 500 $1.06
    AD8402 2 256 Volatile SPI 1, 10, 50, 100 - +5.5 0.01µA 125 500 $1.68
    AD5242 2 256 Volatile I2C 10, 100, 1M ±3 +5.5 0.1µA 105 30 $1.27
    AD5262 2 256 Volatile SPI 20, 50, 200 ±5 +15 0.1µA 85 35 $1.97
    AD5282 2 256 Volatile I2C 20, 50, 200 ±5 +15 0.1µA 85 35 $1.97
    AD5203 4 64 Volatile SPI 10, 100 - +5.5 0.01µA 85 700 $1.47
    AD5204 4 256 Volatile SPI 10, 50, 100 ±3 +5.5 12µA 85 700 $1.52
    AD8403 4 256 Volatile SPI 1, 10, 50, 100 - +5.5 0.01µA 125 500 $2.79
    AD5263 4 256 Volatile I2C, SPI 20, 50, 200 ±5 +15 1µA 125 30 $2.58
    AD5206 6 256 Volatile SPI 10, 50, 100 ±3 +5.5 12µA 85 700 $1.94
    AD5273 1 64 One Time Programmable I2C 1, 10, 50, 100 - +5.5 0.1µA 105 300 $0.69
    AD5171 1 64 One Time Programmable I2C 5, 10, 50, 100 - +5.5 4µA 125 35 $0.72
    AD5170 1 256 One Time Programmable I2C 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.00
    AD5172 2 256 One Time Programmable I2C 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.32
    AD5173 2 256 One Time Programmable I2C 2.5, 10, 50, 100 - +5.5 3.5µA 125 35 $1.32
    AD5258 1 64 Non-Volatile I2C 1, 10, 50, 100 - +5.5 4µA 85 300 $0.59
    AD5259 1 256 Non-Volatile I2C 5, 10, 50, 100 n/a +5.5 3µA 85 300 $0.90
    AD5231 1 1,024 Non-Volatile SPI 10, 50, 100 ±3 +5.5 2.7µA 85 600 $1.97
    AD5251 2 64 Non-Volatile I2C 1, 10, 50, 100 ±3 +5.5 3µA 85 600 $1.97
    AD5252 2 256 Non-Volatile I2C 1, 10, 50, 100 ±3 +5.5 3µA 85 300 $1.61
    AD5232 2 256 Non-Volatile SPI 10, 50, 100 ±3 +5.5 3.5µA 85 300 $2.40
    AD5235 2 1,024 Non-Volatile SPI 25, 250 ±3 +5.5 3.5µA 85 35 $3.52
    ADN2850 2 1,024 Non-Volatile SPI 25, 250 ±3 +5.5 3.5µA 85 35 $3.52
    AD5255 3 512 Non-Volatile I2C 25, 250 ±3 +5.5 3.5µA 85 35 $5.15
    AD5233 4 64 Non-Volatile SPI 10, 50, 100 ±3 +5.5 3.5µA 85 600 $2.50
    AD5253 4 64 Non-Volatile I2C 1, 10, 50, 100 ±3 +5.5 3µA 85 300 $2.49
    AD5254 4 256 Non-Volatile I2C 1, 10, 50, 100 ±3 +5.5 3µA 85 300 $2.58
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