AD5274 is a single-channel, 1024-/256-position digital rheostat. It combines industry leading variable resistor performance with non-volatile memory (NVM) in a compact package. It ensures less than 1% end-to-end resistor tolerance error and offer 50-times programmable (50-TP) memory. Rheostat wiper settings are controllable through the I²C-compatible digital interface. Unlimited adjustments are allowed before programming the resistance value into the 50-TP memory. They do not require any external voltage supply to facilitate fuse blow and there are 50 opportunities for permanent programming. During 50-TP activation, a permanent blow fuse command freezes the wiper position. It is widely used in application such as mechanical rheostat replacements, Op-amp: variable gain control, instrumentation: gain, offset adjustment, programmable voltage to current conversions, programmable filters, delays, time constants, programmable power supply, sensor calibration etc.
- Rheostat mode temperature coefficient is 5ppm/°C
- Nominal resistance is 100Kohm
- Dual-supply voltage for ac or bipolar operation ±2.5V to ±2.75V
- Wiper setting readback, total harmonic distortion is -90dB at (RAW = 20Kohm)
- Resolution is 10bits at (VDD = 2.7V to 5.5V), single-supply operation is 2.7V to 5.5V
- Operating temperature range is -40°C to +125°C
- Power dissipation is 5.5µW at (VIH = VDD or VIL = GND)
- Bandwidth is 300kHz typ at (RAW = 20Kohm)
- Resistor noise density is 13nV/�Hz at (RAW = 20Kohm)
- Packaging style is 10-lead MSOP
Product details
| End To End Resistance:
100kohm
|
| No. of Pots:
Single
|
| Control Interface:
2 Wire, I2C, Serial
|
| Track Taper:
Linear
|
| Resistance Tolerance:
± 1%
|
| Supply Voltage Min:
2.7V
|
| Supply Voltage Max:
5.5V
|
| Potentiometer IC Case Style:
MSOP
|
| No. of Pins:
10Pins
|
| No. of Steps:
256
|
| Temperature Coefficient:
5ppm/°C
|
| Operating Temperature Min:
-40°C
|
| Operating Temperature Max:
125°C
|
| Product Range:
-
|
| Automotive Qualification Standard:
-
|
| MSL:
MSL 1 - Unlimited
|
Other details
| Brand |
ANALOG DEVICES |
| Part Number |
AD5274BRMZ-100 |
| Quantity |
Each |
| Technical Data Sheet EN |
 |
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