Allicdata Part #: | AD5222BRUZ10-REEL7TR-ND |
Manufacturer Part#: |
AD5222BRUZ10-REEL7 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Analog Devices Inc. |
Short Description: | IC POT DGTL DUAL 128POS 14TSSOPDigital Potentiomet... |
More Detail: | N/A |
DataSheet: | AD5222BRUZ10-REEL7 Datasheet/PDF |
Quantity: | 17791 |
Series: | AD5222 |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Taper: | Linear |
Configuration: | Potentiometer |
Number of Circuits: | 2 |
Number of Taps: | 128 |
Resistance (Ohms): | 10k |
Interface: | Up/Down (U/D, CS) |
Memory Type: | Volatile |
Voltage - Supply: | 2.7 V ~ 5.5 V, ±2.3 V ~ 2.7 V |
Features: | -- |
Tolerance: | ±30% |
Temperature Coefficient (Typ): | -35 ppm/°C |
Resistance - Wiper (Ohms) (Typ): | 45 |
Operating Temperature: | -40°C ~ 85°C |
Package / Case: | 14-TSSOP (0.173", 4.40mm Width) |
Supplier Device Package: | 14-TSSOP |
Base Part Number: | AD5222 |
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1. DESCRIPTION
The AD5222BRUZ10-REEL7 provides a dual channel, 128-position, digitally controlled variable-resistor (VR) device. This device performs the same electronic adjustment function as a potentiometer or variable resistor. These products were optimized for instrument and test equipment push-button applications. Choices between bandwidth or power dissipation are available as a result of the wide selection of end-to-end terminal resistance values. The AD5222BRUZ10-REEL7 contains two fixed resistors with wiper contacts that tap the fixed resistor value at a point determined by a digitally controlled up/down counter. The resistance between the wiper and either end point of the fixed resistor provides a constant resistance step size that is equal to the end-to-end resistance divided by the number of positions . The variable resistor offers a true adjustable value of resistance, between Terminal A and the wiper, or Terminal B and the wiper. The fixed A-to-B terminal resistance of 10 kΩ, 50 kΩ, 100 kΩ, or 1 MΩ has a nominal temperature coefficient of –35 ppm/°C. The chip select CS, count CLK and U/D direction control inputs set the variable resistor position. The MODE determines whether both VRs are incremented together or independently. With MODE at logic zero, both wipers are incremented UP or DOWN without changing the relative settings between the wipers. Also, the relative ratio between the wipers is preserved if either wiper reaches the end of the resistor array. In the independent MODE (Logic 1) only the VR determined by the DACSEL pin is changed. DACSEL (Logic 0) changes RDAC 1. These inputs, which control the internal up/down counter, can be easily generated with mechanical or push-button switches (or other contact closure devices). This simple digital interface eliminates the need for microcontrollers in front panel interface designs. The AD5222BRUZ10-REEL7 is available in the surface-mount (SO-14) package. For ultracompact solutions, selected models are available in the thin TSSOP-14 package. All parts are guaranteed to operate over the extended industrial temperature range of –40°C to +85°C.
2. FEATURES
1. 128-Position, 2-Channel
2. Potentiometer Replacement
3. 10 kV, 50 kV, 100 kV, 1 MV
4. Very Low Power: 40 mA Max
5. 62.7 V Dual Supply Operation or 2.7 V to 5.5 V Single Supply Operation
6. Increment/Decrement Count Control
3. APPLICATIONS
1. Stereo Channel Audio Level Control
2. Mechanical Potentiometer Replacement
3. Remote Incremental Adjustment Applications
4. Instrumentation: Gain, Offset Adjustment
5. Programmable Voltage-to-Current Conversion
6. Line Impedance Matching
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