THS1401 Datasheet, PDF (3/22 Pages) Texas Instruments – 14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS WITH INTERNAL REFERENCE AND PGA

THS1401, THS1403, THS1408
14-BIT, 1/3/8 MSPS DSP COMPATIBLE ANALOG-TO-DIGITAL CONVERTERS
WITH INTERNAL REFERENCE AND PGA
SLAS248 – DECEMBER 1999
Terminal Functions
TERMINAL
I/O
NAME
NO.
DESCRIPTION
A[1:0]
40, 41
I Address input
AGND
7,8, 44,
45, 46
P Analog ground
AVDD
CLK
2, 43, 47
32
P 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
P Digital ground
DVDD 14, 20, 26, P Digital power supply
30, 31, 42
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
absolute maximum ratings over operating free-air temperature (unless otherwise noted)^†
Supply voltage, (AV_DD to AGND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V
Supply voltage, (DV_DD to DGND) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4V
Reference input voltage range, VBG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to AV_DD + 0.3 V
Analog input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to AV_DD + 0.3 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . – 0.3 V to DV_DD + 0.3 V
Operating free-air temperature range, T_A: C suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
I suffix . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40°C to 85°C
Storage temperature range, T_stg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
Lead temperature 1.6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260°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.
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