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LF13006

National Semiconductor
Part Number LF13006
Manufacturer National Semiconductor
Description Digital Gain Set
Published Mar 22, 2005
Detailed Description LF13006 LF13007 Digital Gain Set February 1995 LF13006 LF13007 Digital Gain Set General Description The LF13006 and LF...
Datasheet PDF File LF13006 PDF File

LF13006
LF13006

Overview
LF13006 LF13007 Digital Gain Set February 1995 LF13006 LF13007 Digital Gain Set General Description The LF13006 and LF13007 are precision digital gain sets used for accurately setting non-inverting op amp gains Gains are set with a 3-bit digital word which can be latched in with WR and CS pins All digital inputs are TTL and CMOS compatible The LF13006 shown below will set binary scaled gains of 1 2 4 8 16 32 64 and 128 The LF13007 will set gains of 1 2 5 10 20 50 and 100 (a common attenuator sequence) In addition both versions have several taps and two uncommitted matching resistors that allow customization of the gain The gains are set with precision thin film resistors The low temperature coefficient of the thin film resistors and their excellent tracking result in gain ratios which are virtually independent of temperature The LF13006 LF13007 used in conjunction with an amplifier not only satisfies the need for a digitally programmable amplifier in microprocessor based systems but ...


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