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AD7118

Analog Devices
Part Number AD7118
Manufacturer Analog Devices
Description LOGDAC CMOS Logarithmic D/A Converter
Published Mar 23, 2005
Detailed Description a FEATURES Dynamic Range 85.5 dB Resolution 1.5 dB Full ؎25 V Input Range Multiplying DAC Full Military Temperature Rang...
Datasheet PDF File AD7118 PDF File

AD7118
AD7118

Overview
a FEATURES Dynamic Range 85.
5 dB Resolution 1.
5 dB Full ؎25 V Input Range Multiplying DAC Full Military Temperature Range –55؇ C to +125؇ C Low Distortion Low Power Consumption Latch Proof Operation (Schottky Diodes Not Required) Single 5 V to 15 V Supply APPLICATIONS Digitally Controlled AGC Systems Audio Attenuators Wide Dynamic Range A/D Converters Sonar Systems Function Generators LOGDAC CMOS Logarithmic D/A Converter AD7118* FUNCTIONAL DIAGRAM PIN CONFIGURATION GENERAL DESCRIPTION The LOGDAC® AD7118 is a CMOS multiplying D/A converter which attenuates an analog input signal over the range 0 to –85.
5 dB in 1.
5 dB steps.
The analog output is determined by a six-bit attenuation code applied to the digital inputs.
Operating frequency range of the device is from dc to several hundred kHz.
The device is manufactured using an advanced monolithic silicon gate thin-film on CMOS process and is packaged in a 14-pin dual-in-line package.
ORDERING INFORMATION Model AD7118KN AD7118LN AD7118BQ AD7118CQ AD7118TQ2 AD7118UQ2 Temperature Range 0°C to +70°C 0°C to +70°C –25°C to +85°C –25°C to +85°C –55°C to +125°C –55°C to +125°C Specified Accuracy Range 0 to 42 dB 0 to 48 dB 0 to 42 dB 0 to 48 dB 0 to 42 dB 0 to 48 dB Package Option1 N-16 N-16 Q-16 Q-16 Q-16 Q-16 NOTES 1 N = Plastic DIP; Q = Cerdip.
2 To order MIL-STD-883, Class B processed parts, add /883B to part number.
*Protected by U.
S.
Patent No.
4521,764.
LOGDAC is a registered trademark of Analog Devices, Inc.
REV.
A Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use.
No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.
O.
Box 9106, Norwood, MA 02062-9106, U.
S.
A.
Tel: 617/329-4700 Fax: 617/326-8703 AD7118–SPECIFICATIONS Parameter NOMINAL RESO...


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