THS1031
COMPLETE SOLUTION 2.7 V ~ 5.5 V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS242 – NOVEMBER 1999
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
Terminal Functions
PIN
I/O
DESCRIPTION
NAME
NO.
I/O
DESCRIPTION
AGND
1
I
Analog ground
AIN
27
I
Analog input
AVDD
28
I
Analog supply
CLAMP
19
I
HI to enable CLAMP mode, LO to disable CLAMP mode
CLAMPIN
20
I
Connect to an external analog clamp reference input.
CLK
15
I
Clock input
DGND
14
I
Digital ground
DVDD
2
I
Digital driver supply
I/O0
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
I/O9
3
4
5
6
7
8
9
10
11
12
I/O
Digital I/O bit 0 (LSB)
Digital I/O bit 1
Digital I/O bit 2
Digital I/O bit 3
Digital I/O bit 4
Digital I/O bit 5
Digital I/O bit 6
Digital I/O bit 7
Digital I/O bit 8
Digital I/O bit 9 (MSB)
MODE
23
I
Mode input
OE
16
I
HI to the 3-state data bus, LO to enable the data bus
OVR
13
O
Out-of-range indicator
REFBS
25
I
Reference bottom sense
REFBF
24
I
Reference bottom decoupling
REFSENSE
18
I
Reference sense
REFTF
22
I
Reference top decoupling
REFTS
21
I
Reference top sense
VREF
26
I/O
Internal and external reference for ADC
WR
17
I
Write strobe goes HI to write data value D0:D9 to the internal registers.
PRODUCT
PREVIEW