ADC12441 Datasheet, PDF (1/14 Pages) National Semiconductor (TI) – Dynamically-Tested Self-Calibrating 12-Bit Plus Sign A/D Converter with Sample-and-Hold

November 1994
ADC12441 Dynamically-Tested Self-Calibrating 12-Bit
Plus Sign A D Converter with Sample-and-Hold
General Description
The ADC12441 is a CMOS 12-bit plus sign successive ap-
proximation analog-to-digital converter whose dynamic
specifications (S N THD etc ) are tested and guaranteed
On request the ADC12441 goes through a self-calibration
cycle that adjusts positive linearity and full-scale errors to
less than g LSB each and zero error to less than
g1 LSB The ADC12441 also has the ability to go through
an Auto-Zero cycle that corrects the zero error during every
conversion
The analog input to the ADC12441 is tracked and held by
the internal circuitry and therefore does not require an ex-
ternal sample-and-hold A unipolar analog input voltage
range (0V to a5V) or a bipolar range (b5V to a5V) can be
accommodated with g5V supplies
The 13-bit word on the outputs of the ADC12441 gives a 2’s
complement representation of negative numbers The digi-
tal inputs and outputs are compatible with TTL or CMOS
logic levels
Features
Y _{Self-calibration provides excellent temperature stability}
Y _{Internal sample-and-hold}
Y _{Bipolar input range with single} a_{5V reference}
Applications
Y _{Digital signal processing}
Y _{Telecommunications}
Y _Audio
Y _{High resolution process control}
Y _{Instrumentation}
Key Specifications
Y _Resolution
Y _{Conversion Time}
Y _{Bipolar Signal Noise}
Y _{Total Harmonic Distortion}
Y _{Aperture Time}
Y _{Aperture Jitter}
Y _{Zero Error}
Y _{Positive Full Scale Error}
Y _{Power Consumption} g_5V
Y _{Sampling rate}
12 bits plus sign
13 8 ms (max)
76 5 dB (min)
b75 dB (max)
100 ns
100 ps_rms
g1 LSB (max)
g1 LSB (max)
70 mW (max)
55 kHz (max)
TRI-STATE is a registered trademark of National Semiconductor Corporation
Simplified Block Diagram
Connection Diagram
Dual-In-Line Package
C1995 National Semiconductor Corporation TL H 11017
Top View
TL H 11017 – 2
Order Number
ADC12441CMJ ADC12441CMJ 883
or ADC12441CIJ
See NS Package Number J28A
TL H 11017 – 1
RRD-B30M115 Printed in U S A