THS1209_14 Datasheet, PDF (1/34 Pages) Texas Instruments – 12-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER

www.ti.com
THS1209
SLAS288B – JULY 2000 – REVISED DECEMBER 2002
12ĆBIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING
ANALOGĆTOĆDIGITAL CONVERTER
FEATURES
D Simultaneous Sampling of 2 Single-Ended
Signals or 1 Differential Signal
D Signal-to-Noise Ratio: 68 dB at f_I = 2 MHz
D Differential Nonlinearity Error: ±1 LSB
D Integral Nonlinearity Error: ±1.5 LSB
D Auto-Scan Mode for 2 Inputs
D 3-V or 5-V Digital Interface Compatible
D Low Power: 218 mW Max at 5 V
D Power Down: 1 mW Max
D 5-V Analog Single Supply Operation
D Internal Voltage References . . . 50 PPM/°C
and ±5% Accuracy
D Glueless DSP Interface
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 THS1209 is a CMOS, low-power, 12-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
THS1209 consists of two analog inputs, which are
sampled simultaneously. These inputs can be selected
individually and configured to single-ended or
differential inputs. 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.
The THS1209C is characterized for operation from 0°C
to 70°C, and the THS1209I 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 15
SYNC 16
32 ^NC
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
ORDERING INFORMATION
PACKAGED DEVICE
TA
TSSOP
(A)
0°C to 70°C
THS1209CDA
–40°C to 85°C
THS1209IDA
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