THS10082 Datasheet, PDF (1/37 Pages) Texas Instruments – 10 bit TWO ANALOG INPUT, 8 MSPS SIMULTANEOUS SAMPLING ANALOG TO DIGITAL CONVERTER

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THS10082
SLAS254B – MAY 2002 – REVISED NOVEMBER 2002
10ĆBIT, TWO ANALOG INPUT, 8ĆMSPS, SIMULTANEOUS SAMPLING
ANALOGĆTOĆDIGITAL CONVERTER
FEATURES
D Simultaneous Sampling of Two Single-Ended
Signals or One Differential Signal
D Integrated 16-Word FIFO
D Signal-to-Noise and Distortion Ratio: 59 dB at
f_I = 2 MHz
D Differential Nonlinearity Error: ±1 LSB
D Integral Nonlinearity Error: ±1 LSB
D Auto-Scan Mode for Two Inputs
D 3-V or 5-V Digital Interface Compatible
D Low Power: 216 mW Max
D 5-V Analog Single Supply Operation
D Internal Voltage References . . . 50 PPM/°C
and ±5% Accuracy
D Parallel µC/DSP Interface
APPLICATIONS
D Radar Applications
D Communications
D Control Applications
D High-Speed DSP Front-End
D Automotive Applications
DESCRIPTION
The THS10082 is a CMOS, low-power, 10-bit, 8 MSPS
analog-to-digital converter (ADC). The speed, resolution,
bandwidth, and single-supply operation are suited for
applications in radar, imaging, high-speed acquisition, and
communications. A multistage pipelined architecture with
output error correction logic provides for no missing codes
over the full operating temperature range. Internal control
registers allow for programming the ADC into the desired
mode. The THS10082 consists of two analog inputs,
which are sampled simultaneously. These inputs can be
selected individually and configured to single-ended or
differential inputs. An integrated 16 word deep FIFO
allows the storage of data in order to take the load off
of the processor connected to the ADC. Internal
reference voltages for the ADC (1.5 V and 3.5 V) are
provided.
An external reference can also be chosen to suit the dc
accuracy and temperature drift requirements of the
application. Two different conversion modes can be
selected. In the single conversion mode, a single and
simultaneous conversion can be initiated by using the
single conversion start signal (CONVST). The conversion
clock in the single conversion mode is generated internally
using a clock oscillator circuit. In the continuous
conversion mode, an external clock signal is applied to the
CONV_CLK input of the THS10082. The internal clock
oscillator is switched off in the continuous conversion
mode.
The THS10082C is characterized for operation from 0°C
to 70°C, and the THS10082I is characterized for operation
from –40°C to 85°C.
DA PACKAGE
(TOP VIEW)
D0 ₁
D1 2
D2 3
D3 4
D4 5
D5 6
BV_DD 7
BGND 8
D6 9
D7 10
D8 11
D9 12
RA0 13
RA1 14
CONV_CLK (CONVST) 15
DATA_AV 16
32 ^OV_FL
31 RESET
30 AINP
29 AINM
28 REFIN
27 REFOUT
26 REFP
25 REFM
24 AGND
23 AV_DD
22 CS0
21 CS1
20 WR (R/W)
19 RD
18 DV_DD
17 DGND
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.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright  2002, Texas Instruments Incorporated