THS1031 Datasheet, PDF (1/26 Pages) Texas Instruments – 2.7 V . 5.5 V, 10-BIT, 30 MSPS CMOS ANALOG-TO-DIGITAL CONVERTER

D 10-Bit Resolution 30 MSPS
Analog-to-Digital Converter:
D Configurable Input Functions:
– Single-Ended
– Single-Ended With Analog Clamp
– Single-Ended With Programmable Digital
Clamp
– Differential
D Built-in Programmable Gain Amplifier
(PGA)
D Differential Nonlinearity: ±0.3 LSB
D Signal-to-Noise: 56 dB
D Spurious Free Dynamic Range: 60 dB
D Adjustable Internal Voltage Reference
D Straight Binary/ 2s Complement Output
D Out-of-Range Indicator
D Power-Down Mode
THS1031
2.7 V – 5.5 V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS242A – NOVEMBER 1999 – REVISED JANUARY 2000
28-PIN TSSOP/SOIC PACKAGE
(TOP VIEW)
AGND ₁
DV_{DD 2}
I/O0 3
I/O1 4
I/O2 5
I/O3 6
I/O4 7
I/O5 8
I/O6 9
I/O7 10
I/O8 11
I/O9 12
OVR 13
DGND 14
28 ^AV_DD
27 ^AIN
26 V_REF
25 REFBS
24 REFBF
23 MODE
22 REFTF
21 REFTS
20 CLAMPIN
19 CLAMP
18 REFSENSE
17 WR
16 OE
15 CLK
description
The THS1031 is a CMOS, low power, 10-bit, 30 MSPS analog-to-digital converter (ADC) that can operate with
a supply range from 2.7 V to 3.3 V. The THS1031 has been designed to give circuit developers more flexibility.
The analog input to the THS1031 can be either single-ended or differential. This device has a built-in clamp
amplifier whose clamp input level can be selected from an external dc source or from an internal high-precision
10-bit digital clamp level programmable via an internal CLAMP register. A 3-bit PGA is included to maintain SNR
for small signal. The THS1031 provides a wide selection of voltage reference to match the user’s design
requirements. For more design flexibility, the internal reference can be bypassed to use an external reference
to suit the dc accuracy and temperature drift requirements of the application. The out-of-range output is used
to monitor any out-of-range condition in THS1031’s input range. The format of digital output can be coded in
either straight binary or 2s complement.
The speed, resolution, and single-supply operation of the THS1031 are suited for applications in set-top-box
(STB), video, multimedia, imaging, high-speed acquisition, and communications. The built-in clamp function
allows dc restoration of video signal and is suitable for video application. The speed and resolution ideally suit
charge-couple device (CCD) input systems such as color scanners, digital copiers, digital cameras, and
camcorders. A wide input voltage range between REFBS and REFTS allows the THS1031 to be applied in both
imaging and communications systems
The THS1031I is characterized for operation from – 40°C to 85°C.
TA
0°C to 70°C
– 40°C to 85°C
AVAILABLE OPTIONS
PACKAGED DEVICES
28-TSSOP (PW)
28-SOIC (DW)
THS1031CPW
THS1031CDW
THS1031IPW
THS1031IDW
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.
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Copyright © 2000, Texas Instruments Incorporated
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