DS1882Z-050+T&R by Analog Devices

Dual Log Audio Digital Potentiometer

Status: Active
Series: DS1882
RoHS: Unknown
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The DS1882 is a dual, nonvolatile (NV) digital potentiometer designed to operate in audio systems that accomodate up to ±7V signal levels. The potentiometer settings can be stored in EEPROM so that they are retained when the power is cycled. The DS1882 has separate supplies for the potentiometers (VCC) and the communication circuitry (VDD). For clickless/popless operation, a zero-crossing detector allows the wiper position to change when there is no voltage across the potentiometer. The DS1882 is also designed to minimize crosstalk, and the two digital potentiometers provide 0.5dB channel-to-channel matching to prevent volume differences between channels. Total harmonic distortion (THD) is also minimal as long as the wiper drives a high-impedance load. Two attenuation configuration options provide optimum flexibility for the specific application. Configuration Option 1 provides 63 logarithmic tapered steps (0dB to -62dB, 1dB/step) plus a mute setting. Configuration Option 2 has 32 logarithmic steps plus mute and provides software compatibility with the DS1808. When Configuration Option 2 is used in combination with the 16-pin SO package, the DS1882 is both software and pin compatible with the DS1808 in 5V applications.

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Features

Dual, Audio Log Taper Potentiometers
Low THD+N and Crosstalk
±7V Analog Supply (Independent of Digital Supply)
5V Digital Supply
Potentiometer Settings Configurable as Nonvolatile or Volatile
Zero-Crossing Detector Eliminates Switching Noise
Two User-Configurable Attenuation Options
Configuration Option 1: 63 Positions Provide 1dB Attenuation Steps from 0dB to -62dB Plus Mute
Configuration Option 2: (Software-Compatible with the DS1808): 33 Positions Plus Mute as Follows Positions 0–12: 1dB per Step for 12 Steps Positions 13–24: 2dB per Step for 12 Steps Positions 25–32: 3dB per Step for 8 Steps
Positions 0–12: 1dB per Step for 12 Steps
Positions 13–24: 2dB per Step for 12 Steps
Positions 25–32: 3dB per Step for 8 Steps
I²C-Compatible Serial Interface
Three Address Pins Allow Up to 8 Devices on I²C Bus
45kΩ Potentiometer End-to-End Resistance
Industrial Temperature Range (-40°C to +85°C)
16-Pin TSSOP or SO Package

Specifications

Steps 64
# Potentiometers 2
Control Interface I2C
Taper Log
Wiper Memory Non-Volatile
REND-TO-END (kΩ) 45
Res. Tol. (%) 20
Temp. Coeff. (ppm/°C) (typ) 30
Wiper Resistance (Ω) (typ) 160
ICC @5V (µA) (max) 200
Package/Pins SOIC (N)/16TSSOP/16
BudgetaryPrice (See Notes) 1.63


DS1882Z-050+T&R Digital Potentiometers by Analog Devices

DIGITAL POT, 45K, DUAL, NSOIC-16

Status: Unknown
Series: -
RoHS: Compliant
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

End To End Resistance 45kohm
No. of Pots Dual
Control Interface I2C
Track Taper Log (Audio)
Resistance Tolerance ± 20%
Supply Voltage Min 4.5V
Supply Voltage Max 7V
No. of Pins 16Pins
RoHS Compliant Yes

Alternative Descriptions

Digital Pot, 45K, Dual, Nsoic-16 | Newark Electronics

Frequently Asked Questions

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Is the DS1882Z-050+T&R RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Farnell and Newark Electronics have stock available or on a lead time for DS1882Z-050+T&R .

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