DDC114IRTCT Datasheet, PDF (5/35 Pages) Texas Instruments – Quad Current Input, 20-Bit Analog-To-Digital Converter

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PIN CONFIGURATIONS
Top View
DDC114
SBAS255C − JUNE 2004 − REVISED APRIL 2009
QFN
48 47 46 45 44 43 42 41 40 39 38 37
DOUT 1
DOUT 2
CLK_4X 3
FORMAT 4
HISPD/LOPWR 5
RANGE0 6
RANGE1 7
RANGE2 8
AGND 9
VREF 10
AGND 11
AGND 12
DDC114
36 DIN
35 DIN
34 NC
33 NC
32 RESET
31 TEST
30 DGND
29 DGND
28 AGND
27 AVDD
26 AGND
25 AGND
13 14 15 16 17 18 19 20 21 22 23 24
PIN DESCRIPTIONS
PIN
DOUT
DOUT
CLK_4X
FORMAT
HISPD/LOPWR
RANGE0
RANGE1
RANGE2
AGND
VREF
AIN4
AIN3
AIN2
AIN1
AVDD
DGND
TEST
RESET
NC
DIN
DIN
DVDD
DCLK
DCLK
CLK
DVALID
CONV
NUMBER
1
2
3
4
5
6
7
8
9, 11-14, 16, 18-20,
22, 24-26, 28
10
15
17
21
23
27
29, 30, 38, 41, 43, 45,
47, 48
31
32
33, 34
35
36
37
39
40
42
44
46
FUNCTION
Digital Output
Digital Output
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
Digital Input
Analog
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog
Digital
Digital Input
Digital Input
—
Digital Input
Digital Input
Digital
Digital Input
Digital Input
Digital Input
Digital Output
Digital Input
DESCRIPTION
Serial Data Output
Serial Data Output: Complementary Signal
Master Clock Divider Control: 0 = divide by 1, 1 = divide by 4
Digital Output Word Format: 0 = 16 Bits, 1 = 20 Bits
Mode Control: 0 = Low-Power, 1 = High-Speed
Range Control 0 (least significant bit)
Range Control 1
Range Control 2 (most significant bit)
Analog Ground
External Voltage Reference Input, 4.096V Nominal
Analog Input 4
Analog Input 3
Analog Input 2
Analog Input 1
Analog Power Supply, 5V Nominal
Digital Ground
Test Mode Control
Resets the Digital Circuitry, Active Low
No Connection
Serial Data Input: Complementary Signal (optional, see text on page 13)
Serial Data Input
Digital Power Supply, 3V Nominal
Serial Data Clock Input: Complementary Signal (optional, see text on page 13)
Serial Data Clock Input
Master Clock Input
Data Valid Output, Active Low
Conversion Control Input: 0 = Integrate on Side B, 1 = Integrate on Side A
5