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SLAS248D − DECEMBER 1999 − REVISED SEPTEMBER 2005
FEATURES
D 14-Bit Resolution
D 1, 3, and 8 MSPS Speed Grades Available
D Differential Nonlinearity (DNL) ±0.6 LSB Typ
D Integral Nonlinearity (INL) ±1.5 LSB Typ
D Internal Reference
D Differential Inputs
D Programmable Gain Amplifier
D µP-Compatible Parallel Interface
D Timing Compatible With TMS320C6000 DSP
D 3.3-V Single Supply
D Power-Down Mode
D Monolithic CMOS Design
APPLICATIONS
D xDSL Front Ends
D Communication
D Industrial Control
D Instrumentation
D Automotive
DESCRIPTION
The THS1401, THS1403, and THS1408 are 14-bit, 1/3/8
MSPS, single supply analog-to-digital converters (ADCs)
with an internal reference, differential inputs,
programmable input gain, and an on-chip
sample-and-hold amplifier.
Implemented with a CMOS process, the device has
outstanding price/performance and power/speed ratios.
The THS1401, THS1403, and THS1408 are designed for
use with 3.3-V systems, and with a high-speed µP-
compatible parallel interface, making them the first choice
for solutions based on high-performance DSPs such as
the TI TMS320C6000 series.
The THS1401, THS1403, and THS1408 are available in a
TQFP-48 package in standard commercial and industrial
temperature ranges. The THS1401, THS1403, and
THS1408 are also available in a PQFP-48 package in
automotive temperature range, and the THS1408 is
available in a PQFP-48 package in military temperature
range.
PGA
0..7 dB
REF
14-Bit
ADC
Buffer
14 15
CONTROL
LOGIC
REF+
REF−
IN+
IN−
D[13:0] + OV bit
A[1:0]
6
CLK
1.5 V
BG
VBG
CS
WR
OE
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Copyright 1999−2005, Texas Instruments Incorporated
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
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