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ADS8326 |
www.ti.com |
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SBAS343C –MAY 2007–REVISED SEPTEMBER 2009 |
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PIN CONFIGURATION |
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DGK PACKAGE |
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MSOP-8 |
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(TOP VIEW) |
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VDD |
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REF |
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1 |
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8 |
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+IN |
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2 |
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7 |
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DCLOCK |
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ADS8326 |
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DOUT |
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−IN |
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3 |
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6 |
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GND |
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4 |
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5 |
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CS/SHDN |
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DRB PACKAGE
SON-8
(TOP VIEW)
REF |
1 |
8 |
VDD |
+IN |
2 |
7 |
DCLOCK |
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ADS8326 |
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−IN |
3 |
6 |
DOUT |
GND |
4 |
(THERMAL PAD) 5 |
CS/SHDN |
(1)The thermal pad is internally connected to the substrate. This pad can be connected to the analog ground or left floating. Keep the thermal pad separate from the digital ground, if possible.
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PIN ASSIGNMENTS |
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PIN |
I/O |
DESCRIPTION |
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NAME |
NO. |
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REF |
1 |
Analog input |
Reference input |
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+IN |
2 |
Analog input |
Noninverting input |
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–IN |
3 |
Analog input |
Inverting analog input |
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GND |
4 |
Power-supply connection |
Ground |
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5 |
Digital input |
Chip select when low; Shutdown mode when high. |
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CS/SHDN |
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DOUT |
6 |
Digital output |
Serial output data word |
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DCLOCK |
7 |
Digital input |
Data clock synchronizes the serial data transfer and determines conversion speed. |
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VDD |
8 |
Power-supply connection |
Power supply |
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Equivalent Input Circuit (VDD = 5.0V)
VDD |
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VDD |
VDD |
RON |
C(SAMPLE) |
RON |
24pF |
50Ω |
48pF |
50Ω |
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ANALOG IN |
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REF |
I/O |
GND |
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GND |
GND |
Diode Turn-On Voltage: 0.35V |
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Equivalent Reference Input Circuit |
Equivalent Digital Input/Output Circuit |
Equivalent Analog Input Circuit |
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Copyright © 2007–2009, Texas Instruments Incorporated |
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Product Folder Link(s): ADS8326