LND5432HT Datasheet, PDF (1/1 Pages) Linear Dimensions Semiconductor – Temperature-Insensitive Comparator with Rail-to-Rail

DATA SHEET
D
LND5432HT
Temperature-Insensitive Comparator with Rail-to-Rail
Input/output with Extended Temperature Range
GENERAL DESCRIPTION
The LND5432HT is a high-gain differential amplifier
with rail-to-rail input voltage performance
range, designed in 0.5µm SOI technology.
The LND5432HT uses a 3.3V supply, and provides
rise and fall times of less than 75ns at the output.
The LND5432HT uses a two sided folded cascode
primary differential stage to create a rail-to-rail input
range. The intermediate stage has two variations, a
differential amplifier or a logic controlled dual-pass-
transistor. The final stage shapes the output using
buffers/inverters.
At 27⁰C, over the 0.0V-3.3V common mode input
voltage range the input-offset error is less than 1mV
and 250µV for the differential amplifier and logic
controlled variations respectively. Over the
temperature range of 27⁰C to 200⁰C the input-offset
error is 2.85mV for both variations.
PIN DIAGRAM
FEATURES
• Rail-to-Rail input/output performance
range
• 2.85mV Input-Offset Error
(Temperature-Insensitive)
• 250µV Attainable Input-Offset Error
(27⁰C)
• Propagation delay of 375 ns
• Internally biased for temperature
insensitive operation
• No phase inversion
• (Two versions of design)
APPLICATIONS
• Null and Zero-Crossing Detector
• Temperature Insensitive High-Gain Op-
Amp.
• 10-Bit(or less) resolution ADC-
Comparator for 27⁰C to 200⁰C
• 13-Bit(or less) resolution ADC-
Comparator at 27⁰C
PIN DESCRIPTION
LND5432HT
Pin
Number
1
2
3
4
5
Description
Output Voltage (VBUFF)
Ground Voltage (VSS)
Non-Inverting Input (VNONINV)
Inverting Input (VINV)
Supply Voltage (VDD)
• Linear Dimensions, Inc. • 445 East Ohio Street, Chicago IL 60611 USA • tel [phone] • fax [phone] • www.lineardimensions.com •