AD7111ACR Analog Devices Inc, AD7111ACR Datasheet
![no-image](/images/manufacturer_photos/0/0/57/analog_devices_inc_sml.jpg)
AD7111ACR
Specifications of AD7111ACR
Available stocks
Related parts for AD7111ACR
AD7111ACR Summary of contents
Page 1
FEATURES Dynamic Range: 88.5 dB Resolution: 0.375 dB On-Chip Data Latches +5 V Operation AD7111A Pin Compatible with AD7524 Low Power APPLICATIONS Audio Attenuators Sonar Systems Function Generators Digitally Controlled AGC System GENERAL DESCRIPTION The LOGDAC AD7111/AD7111A are monolithic ...
Page 2
AD7111/AD7111A–SPECIFICATIONS AD7111–ELECTRICAL CHARACTERISTICS AD7111L/C/U Grades Parameter NOMINAL RESOLUTION 0.375 ACCURACY RELATIVE ATTENUATION 0.375 dB Steps: Accuracy 0. Monotonic 0.75 dB Steps: Accuracy 0. ...
Page 3
AD7111A–ELECTRICAL CHARACTERISTICS Parameter NOMINAL RESOLUTION 0.375 ACCURACY RELATIVE ATTENUATION 0.375 dB Steps: Accuracy 0. Monotonic 0.75 dB Steps: Accuracy 0. Monotonic ...
Page 4
... Range Range AD7111ABN – + AD7111ACN – + AD7111ABR – + AD7111ACR – + NOTE Plastic DIP SOIC. TERMINOLOGY RESOLUTION: Nominal change in attenuation when moving between two adjacent codes. MONOTONICITY: The device is monotonic if the analog out- put decreases (or remains constant) as the digital code increases. FEEDTHROUGH ERROR: That portion of the input signal which reaches the output when all digital inputs are high ...
Page 5
Write Cycle Timing Diagram CIRCUIT DESCRIPTION GENERAL CIRCUIT DESCRIPTION The AD7111/AD7111A consists of a 17-bit R-2R CMOS mul- tiplying D/A converter with extensive digital logic. The logic translates the 8-bit binary input into a 17-bit word which is used to ...
Page 6
AD7111/AD7111A For example, the AD7111L is guaranteed monotonic in 0.375 dB steps from –54 dB inclusive and in 0.75 dB steps from –72 dB inclusive. To achieve monotonic operation over the entire 88.5 dB ...
Page 7
Another error arises from the output amplifier s input offset voltage. The amplifier is operated with a fixed feedback resis- tance, but the equivalent source impedance (the AD7111/ AD7111A output impedance) varies as a function of attenuation level. This has ...
Page 8
AD7111/AD7111A–Typical Performance Characteristics 2 + –10V IN DATA INPUT = 1111XXXX 1.5 1.0 0.5 0.0 –40 – TEMPERATURE – C Figure 10. Output Leakage Current vs. Temperature 10 1/2 OP – 275 C1 ...