AMC1204_14 Datasheet, PDF (7/37 Pages) Texas Instruments – 20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204
AMC1204B
www.ti.com
PIN CONFIGURATIONS
SBAS512D – APRIL 2011 – REVISED DECEMBER 2013
DW PACKAGE
SO-16
(TOP VIEW)
AVDD 1
VINP 2
VINN 3
AGND 4
NC⁽¹⁾ 5
NC 6
NC 7
AGND 8
16 DGND
15 NC
14 DVDD
13 CLKIN
12 NC
11 DATA
10 NC
9 DGND
DWV PACKAGE
SSO-8
(TOP VIEW)
AVDD 1
VINP 2
VINN 3
AGND 4
8 DVDD
7 CLKIN
6 DATA
5 DGND
(1) NC = no internal connection.
PIN NAME
AVDD
VINP
VINN
AGND
DGND
DATA
CLKIN
DVDD
NC
PIN#
DW
1
2
3
4, 8 ⁽¹⁾
9, 16
11
13
14
5-7, 10, 12, 15
DWV
1
2
3
4
5
6
7
8
—
PIN DESCRIPTIONS
FUNCTION
DESCRIPTION
Power High-side power supply
Analog input Noninverting analog input
Analog input Inverting analog input
Power High-side ground
Power Controller-side ground
Digital output Modulator data output
Digital input Modulator clock input
Power Controller-side power supply
—
No internal connection; can be tied to any potential or left unconnected
(1) Both pins are connected internally via a low-impedance path; thus, only one of the pins must be tied to the ground plane.
TIMING INFORMATION
CLKIN
t_CLK
t_D
t_HIGH
t_LOW
DATA
Figure 1. Modulator Output Timing
TIMING CHARACTERISTICS FOR Figure 1
Over recommended ranges of supply voltage and operating free-air temperature, unless otherwise noted.
PARAMETER
MIN
TYP
t _CLK
t_HIGH
t_LOW
t_D
CLKIN clock period
CLKIN clock high time
CLKIN clock low time
Delayed falling edge of CLKIN to DATA valid
45.5
50
20
25
20
25
2
MAX
200
120
120
15
UNIT
ns
ns
ns
ns
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