MX7672(2012) Просмотр технического описания (PDF) - Maxim Integrated
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MX7672 Datasheet PDF : 14 Pages
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MX7672
High-Speed 12-Bit ADC With External
Reference Input Part
Pin Description
24-PIN
—
1
2
3
PIN
28-PIN
1, 8, 15, 22
2
3
4
4–11
5–13
12
13–16
14
16–19
17
20
18
21
19
23
20
24
21
25
22
26
23
27
24
28
NAME
N.C.
AIN1
VREF
AGND
D11–D4
DGND
D3–D0
CLKIN
CLKOUT
RD
CS
BUSY
VSS
VDD
AIN2
FUNCTION
No Connection
Analog Input
Voltage-Reference Input
Analog Ground
Three-State Data Outputs. They are active when CS and RD are low. D11 is the
most significant bit.
Digital Ground
Three-State Data Outputs
Clock Input. Connect an external TTL-compatible clock to CLKIN. Alternatively,
insert a crystal or ceramic resonator between CLKIN and CLKOUT.
Clock Output. When using an external clock, an inverted CLKIN signal appears on
CLKOUT. See CLKIN description.
READ Input. Along with CS, this active-low signal enables the three-state drivers
and starts a conversion.
CHIP SELECT. Along with RD, this active-low signal enables the three-state drivers
and starts a conversion.
BUSY. Low while a conversion is in progress. BUSY indicates converter status.
Negative Supply, -12V
Positive Supply, +5V
Analog Input
Figure 1. Load Circuits for Access Time
Figure 2. Load Circuits for Bus-Relinquish Time
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Figure 3. MX7672 Operational Diagram
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