
THS1031
2.7 V – 5.5 V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS242A – NOVEMBER 1999 – REVISED JANUARY 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature (unless otherwise noted)
Supply voltage: AV
DD
to AGND, DV
DD
to DGND
AGND to DGND
AV
DD
to DV
DD
Mode input MODE to AGND
Reference voltage input range REFTF, REFTB, REFTS, REFBS to AGND
Analog input voltage range AIN to AGND
Reference input V
REF
to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reference output V
REF
to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Clock input CLK to AGND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital input to DGND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital output to DGND
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating junction temperature range, T
J
Storage temperature range, T
STG
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lead temperature 1,6 mm (1/16 in) from case for 10 seconds
–0.3 to 6.5 V
–0.3 to 0.3 V
–6.5 to 6.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–0.3 to AV
DD
+ 0.3 V
–0.3 to AV
DD
+ 0.3 V
–0.3 to AV
DD
+ 0.3 V
–0.3 to AV
DD
+ 0.3 V
–0.3 to AV
DD
+ 0.3 V
–0.3 to AV
DD
+ 0.3 V
–0.3 to DV
DD
+ 0.3 V
–0.3 to DV
DD
+ 0.3 V
0
°
C to 150
°
C
–65
°
C to 150
°
C
. . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
300
°
C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
recommended operating conditions
digital inputs
MIN
NOM
MAX
UNIT
High-level input voltage, VIH
Low-level input voltage, VIL
analog inputs
2.4
V
0.2 x DVDD
V
MIN
NOM
MAX
UNIT
Analog input voltage, VI(AIN)
Reference input voltage, VI(VREF)
Reference input voltage, VI(REFTS)
Reference input voltage, VI(REFBS)
Clamp input voltage, VI(CLAMPIN)
REFBS
REFTS
V
1
2
V
1
AVDD
AVDD–1
REFTS
V
0
V
REFBS
V
power supply
MIN
2.7
NOM
MAX
5.5
UNIT
Supply voltage
Maximum sampling rate = 30 MSPS
AVDD
DVDD
3
V
2.7
3
5.5
REFTS, REFBS reference voltages (MODE = AV
DD
)
PARAMETER
MIN
TYP
MAX
UNIT
REFTS
Reference input voltage (top)
1
AVDD
AVDD–1
2
V
REFBS
Reference input voltage (bottom)
0
V
Differential input (REFTS – REFBS)
1
V
Switched input capacitance on REFTS
0.6
pF
Switched input capacitance on REFBS
0.6
pF
sampling rate and resolution
PARAMETER
MIN
NOM
MAX
UNIT
Fs
5
30
MHz
Resolution
10
Bits