THS10082
SLAS254B MAY 2002 REVISED NOVEMBER 2002
10BIT, TWO ANALOG INPUT, 8MSPS, SIMULTANEOUS SAMPLING
ANALOGTODIGITAL 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
fI = 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 C/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.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
D0
D1
D2
D3
D4
D5
BVDD
BGND
D6
D7
D8
D9
RA0
RA1
CONV_CLK (CONVST)
DATA_AV
OV_FL
RESET
AINP
AINM
REFIN
REFOUT
REFP
REFM
AGND
AVDD
CS0
CS1
WR (R/W)
RD
DVDD
DGND
DA PACKAGE
(TOP VIEW)
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.
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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Copyright
2002, Texas Instruments Incorporated