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AD7111
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General Description

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MFG:TOSHIBA Package Cooled:DIP D/C:20

AD7 Series Datasheet download

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Part Number: AD7111

MFG: TOSHIBA

Package Cooled: DIP

D/C: 20

Description: The LOGDAC AD7111/AD7111A are monolithic multiplying D/A converters featuring wide dynamic range in a small pack- age. ...

AD7111 General Description

The LOGDAC AD7111/AD7111A are monolithic multiplying D/A converters featuring wide dynamic range in a small pack- age. Both DACs can attenuate an analog input signal over the range 0 dB to 88.5 dB in 0.375 dB steps. They are available in 16-pin DIPs and SOIC packages. The AD7111 is also available
in a 20-terminal LCCC package. The degree of attenuation across the DAC is determined by an 8-bit word applied to the onboard decode logic. This 8-bit word is decoded into a 17-bit word which is then applied to a 17-bit R-2R ladder. The very fine step resolution, which is available over the entire dynamic range, is due to the use of this 17-bit DAC.

The AD7111/AD7111A are fabricated in Linear Compatible CMOS (LC2 MOS), an advanced, mixed technology process that combines precision bipolar circuits with low power CMOS logic.

AD7111 Maximum Ratings

V_DD (to DGND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7 V
V_IN (to AGND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 V
Digital Input Voltage to DGND . . . . .    0.3 V to V_DD + 0.3 V
I_OUT to AGND . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to V_DD
V_RFBto AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±35 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . .   0 to V_DD
DGND to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . .   0 to V_DD
Power Dissipation, DIP . . . . . . . . . . . . . . . . . . . . . . . . . 1 W
_JA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . 117°C/W
Lead Temperature (Soldering, 10 secs) . . . . . . . . . +300°C
Power Dissipation, SOIC . . . . . . . . . . . . . . . . . . . . . . . . .1 W
_JA, Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 75°C/W
Lead Temperature (Soldering)
Vapor Phase (60 secs) . . . . . . . . . . . . . . . . . . . . . . . 215°C
Infrared (15 secs) . . . . . . . . . . . . . . . . . . . . . . . . . .   220°C

AD7111 Features

Dynamic Range: 88.5 dB
Resolution: 0.375 dB
On-Chip Data Latches
+5 V Operation
AD7111A Pin Compatible with AD7524
Low Power

AD7111 Typical Application

Audio Attenuators
Sonar Systems
Function Generators
Digitally Controlled AGC System

AD7111 Connection Diagram

AD7111 datasheet

AD7111
PDF/DataSheet Download

Datasheet: AD7111
File Size: 179697 KB
Manufacturer: AD [Analog Devices]
Click here to Download

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