AD671KD-750 Просмотр технического описания (PDF) - Analog Devices
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AD671KD-750 Datasheet PDF : 16 Pages
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AD671
Symbol
AD671 PIN DESCRIPTION
Pin Type Name and Function
CONNECTION DIAGRAM
PINOUT
ACOM
22
AIN
20
BIT1 (MSB) 12
P Analog Ground.
AI Analog Input Signal.
DO Most Significant Bit.
BIT12 (LSB) 1
BIT11 2
24 VEE
23 VCC
BIT2–BIT11 11–2 DO Data Bits 2–11.
BIT10 3
22 ACOM
BIT12 (LSB) 1
DO Least Significant Bit.
BIT9 4
21 BPO/UPO
BPO/UPO 21 AI Bipolar or Unipolar
BIT8 5
20 AIN
Configuration Pin. Connect to
BIT7 6
AD671 19 REF IN
AIN for 0 V to +5 V Span, to
BIT6
7
TOP VIEW
(Not to Scale)
18 DCOM
ACOM for 0 V to +10 V Span
BIT5 8
17 VLOGIC
OBSOLETE and to REF IN for –5 V to
+5 V Span.
DAV
15 DO Data Available Output. The
Rising Edge of DAV Indicates
an End of Conversion and Can
Be Used to Latch Current
Data into an External
Register. The Falling Edge of
DAV Can Be Used to Latch
Previous Data into an External
Register.
DCOM
18 P Digital Ground.
ENCODE 16 DI The AD671 Starts a
Conversion on the Rising
Edge of the ENCODE Pulse.
MSB
13 DO Inverted Most Significant Bit.
Provides Twos Complement
BIT4 9
BIT3 10
BIT2 11
BIT1 (MSB) 12
16 ENCODE
15 DAV
14 OTR
13 MSB
Output Data Format.
OTR
14 DO Out of Range Is Active HIGH
when the analog input is
beyond the input range of the
converter.
REF IN
19 AI +5 V Reference Input.
VCC
23 P +5 V Analog Power.
VEE
VLOGIC
24 P –5 V Analog Power.
17 P +5 V Digital Power.
TYPE:
AI = Analog Input
DI = Digital Input
DO = Digital Output
P = Power
–6–
REV. B
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