AMC1204 Datasheet, PDF (7/29 Pages) Texas Instruments – 20MHz, Second-Order, Isolated Delta-Sigma Modulator for Current-Shunt Measurement

AMC1204
www.ti.com
PIN CONFIGURATION
DW PACKAGE
TSSOP-16
(TOP VIEW)
SBAS512A – APRIL 2011 – REVISED APRIL 2011
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
(1) NC = no internal connection.
PIN NAME
AVDD
VINP
VINN
AGND
DGND
DATA
CLKIN
DVDD
NC
PIN DESCRIPTIONS
PIN#
FUNCTION DESCRIPTION
1
Power High-side power supply
2
Analog input Noninverting analog input
3
4, 8 ⁽¹⁾
Analog input Inverting analog input
Power High-side ground
9, 16
Power Controller-side ground
11
Digital output Modulator data output
13
Digital input Modulator clock input
14
Power Controller-side power supply
5, 6, 7, 10, 12, 15
—
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
t_CLK
t_HIGH
CLKIN
t_D
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
Copyright © 2011, Texas Instruments Incorporated
Product Folder Link(s): AMC1204
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