THS1401-EP Datasheet, PDF (3/27 Pages) Texas Instruments – 14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA

THS1401-EP THS1403-EP THS1408-EP
14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
WITH INTERNAL REFERENCE AND PGA
SGLS129A – JULY 2002 – REVISED NOVEMBER 2002
Terminal Functions
TERMINAL
I/O
NAME
NO.
DESCRIPTION
A[1:0]
40, 41
I Address input
AGND
7,8, 44,
45, 46
Analog ground
AVDD
CLK
2, 43, 47
32
Analog power supply
I Clock input
CML
4
Reference midpoint. This pin requires a 0.1-µF capacitor to AGND.
CS
37
I Chip select input. Active low
DGND 9, 15, 25,
33, 34
Digital ground
DVDD 14, 20, 26,
30, 31, 42
Digital power supply
D[13:0] 11, 12, 13, I/O Data inputs/outputs
16, 17, 18,
19, 21, 22,
23, 24, 27,
28, 29
NC
38, 39
No connection, do not use. Reserved
IN+
48
I Positive differential analog input
IN–
1
I Negative differential analog input
OE
35
I Output enable. Active low
OV
10
O Out of range output
REF+
5
O Positive reference output. This pin requires a 0.1-µF capacitor to AGND.
REF–
6
O Negative reference output. This pin requires a 0.1-µF capacitor to AGND.
VBG
3
I Reference input. This pin requires a 1-µF capacitor to AGND.
WR
36
I Write signal. Active low
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
3