THS1206 Datasheet, PDF (1/41 Pages) Texas Instruments – 12-BIT 6 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTERS

THS1206
12-BIT 6 MSPS, SIMULTANEOUS SAMPLING
ANALOG-TO-DIGITAL CONVERTERS
SLAS217D – MAY 1999 – REVISED APRIL 2000
features
applications
D High-Speed 6 MSPS ADC
D 4 Single-Ended or 2 Differential Inputs
D Simultaneous Sampling of 4 Single-Ended
Signals or 2 Differential Signals or
Combination of Both
D Differential Nonlinearity Error: ±1 LSB
D Integral Nonlinearity Error: ±1.5 LSB
D Signal-to-Noise and Distortion Ratio: 68 dB
D Radar Applications
D Communications
D Control Applications
D High-Speed DSP Front-End
D Automotive Applications
DA PACKAGE
(TOP VIEW)
at f_I = 2 MHz
D Auto-Scan Mode for 2, 3, or 4 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 Glueless DSP Interface
D Parallel µC/DSP Interface
D Integrated FIFO
D Available in TSSOP Package
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
D10/RA0 13
32 ^AINP
31 ^AINM
30 ^BINP
29 BINM
28 REFIN
27 REFOUT
26 REFP
25 REFM
24 AGND
23 AV_DD
22 CS0
21 CS1
20 WR (R/W)
description
The THS1206 is a CMOS, low-power, 12-bit,
6 MSPS analog-to-digital converter (ADC). The
D11/RA1 14
CONV_CLK (CONVST) 15
DATA_AV 16
19 RD
18 DV_DD
17 DGND
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 are used to program the ADC into the desired mode. The THS1206 consists of four 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 single conversion mode, a single and
simultaneous conversion of up to four inputs can be initiated by using the single conversion start signal
(CONVST). The conversion clock in single conversion mode is generated internally using a clock oscillator
circuit. In continuous conversion mode, an external clock signal is applied to the CONV_CLK input of the
THS1206. The internal clock oscillator is switched off in continuous conversion mode.
The THS1206C is characterized for operation from 0°C to 70°C, the THS1206I is characterized for operation
from –40°C to 85°C, the THS1206Q is characterized to meet the rigorous requirements of the automotive
environment from –40°C to 125°C, and the THS1206M is characterized for operation over the full military
temperature range of –55°C to 125°C.
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.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright © 2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
1