AD671KD-500 AD [Analog Devices], AD671KD-500 Datasheet - Page 6

• Manufacturer Part Number: AD671KD-500
• Description: Monolithic 12-Bit 2 MHz A/D Converter
• Manufacturer: AD [Analog Devices]

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