NTE2050 & NTE2051
Integrated Circuit
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鈥揇igit Single Chip A/D Converter
Description:
The NTE2050 and NTE2051 are high performance, low power 3鈥?/2 digit A/D converters containing
all the necessary active devices on a single CMOS IC. Included are seven segment decoders, display
drivers, reference and a clock. The NTE2051 is designed to interface with a liquid crystal display
(LCD) and includes a backplane drive; the NTE2050 will directly drive an instrument鈥搒ize light emit-
ting diode (LED) display.
The NTE2050 and NTE2051 bring together an unprecedented combination of high accuracy, versatil-
ity, and true economy. High accuracy like auto鈥搝ero to less than 10碌V, zero drift of less than 1碌V/擄C,
input bias current of 10pA max., and roll鈥搊ver error of less than one count. The versatility of true differ-
ential input and reference is useful in all systems, but gives the designer an uncommon advantage
when measuring load cells, strain gauges and other bridge鈥搕ype transducers. And, finally, the true
economy of single power supply operation (NTE2051), enabling a high performance panel meter to
be built with the addition of only 7 passive components and a display.
Features:
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Guaranteed Zero Reading for 0 Volts Input on all Scales
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True Polarity at Zero for Precise Null Detection
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Input Current: 1pA Typ
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True Differential Input and Reference
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Direct Display Drive 鈥?No External Components Required:
NTE2050 (LED)
NTE2051 (LCD)
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Low Noise 鈥?Less than 15碌V
P鈥揚(yáng)
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On鈥揅hip Clock and Reference
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Low Power Dissipation 鈥?Typically Less than 10mW
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No Additional Active Circuits Required
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