THS1230
www.ti.com
SLAS291B–OCTOBER 2000–REVISED MARCH 2004
3.3-V, 12-BIT, 30 MSPS, LOW-POWER ANALOG-TO-DIGITAL
CONVERTER WITH POWER DOWN
FEATURES
DW OR PW PACKAGE
(TOP VIEW)
•
12-Bit Resolution, 30 MSPS
Analog-to-Digital Converter
1
28
27
26
25
24
23
22
21
20
19
18
17
16
15
AGND
CON1
CON0
EXTREF
AIN+
•
Input Configurations:
– Differential (0.5x)
– Differential (1x)
CLK
AV
2
DD
3
OE
D0
D1
D2
D3
D4
4
•
•
•
•
•
3.3-V Supply Operation
Internal Voltage Reference
Out-of-Range Indicator
Power-Down Mode
5
6
AIN−
7
AGND
8
AV
DD
9
REFT
REFB
OVRNG
D11
DV
DD
IF Undersampling
10
11
12
13
14
DGND
D5
D6
APPLICATIONS
•
•
•
•
•
•
•
Set Top Box (STB)
Camcorders
D10
D7
D9
D8
Digital Cameras
Copiers
Communications
Test Instruments
IF and Baseband Digitization
DESCRIPTION
The THS1230 is a CMOS, low-power, 12-bit, 30 MSPS analog-to-digital converter (ADC) that operates with a
3.3-V supply. The THS1230 gives circuit developers complete flexibility. The analog input to the THS1230 is
differential with a gain of 0.5 for Mode 2 and 1.0 for Mode 1. The THS1230 provides a wide selection of voltage
references 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 the THS1230's input range.
The speed, resolution, and single-supply operation of the THS1230 are suited for applications in set top box
(STB), video, multimedia, high-speed acquisition, and communications. The speed and resolution ideally suit
charge-couple device (CCD) input systems such as digital copiers, digital cameras, and camcorders. The wide
input voltage range between VREFB and VREFT allows the THS1230 to be designed into multiple systems.
The THS1230C is characterized for operation from 0°C to 70°C. The THS1230I is characterized for operation
from –40°C to 85°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.
Copyright © 2000–2004, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.