AD671KD-500 AD [Analog Devices], AD671KD-500 Datasheet - Page 4

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

Parameter
LOGIC INPUT
LOGIC OUTPUTS
Specifications shown in boldface are tested on all devices at final electrical test. Results from those tests are used to calculate outgoing quality levels. All min and max
specifications are guaranteed, although only those shown in boldface are tested.
Specifications subject to change without notice.
SWITCHING SPECIFICATIONS
Parameter
Conversion Time
ENCODE Pulse Width High
ENCODE Pulse Width Low
DAV Pulse Width
ENCODE Falling Edge Delay
Start New Conversion Delay
Data and OTR Delay from DAV Falling Edge
Data and OTR Valid before DAV Rising Edge
NOTES
1
2
AD671–SPECIFICATIONS
DIGITAL SPECIFICATIONS
t
t
DD
SS
High Level Input Voltage
Low Level Input Voltage
High Level Input Current (V
Low Level Input Current (V
Input Capacitance
High Level Output Voltage (I
Low Level Output Voltage (I
Output Capacitance
(AD671-500)
(AD671-750)
(AD671-500)
(AD671-750)
(AD671-500)
(AD671-750)
is measured from when the outputs cross 0.4 V or 2.4 V to when the rising edge of DAV crosses 2.4 V with a 25 pF load capacitor on each output pin.
is measured from when the falling edge of DAV crosses 0.8 V to when the output crosses 0.4 V or 2.4 V with a 25 pF load capacitor on each output pin.
a. Encode Pulse HIGH
IN
IN
OL
OH
= 0 V)
= V
= 1.6 mA)
= 0.5 mA)
LOGIC
(For all grades T
5%, V
)
(For all grades T
5%, V
REF
Figure 1. AD671 Timing Diagrams
= +5.000 V, unless otherwise noted)
IL
= 0.8 V, V
MIN
to T
Symbol
V
V
I
I
C
V
V
C
Symbol
t
t
t
t
t
t
t
t
t
t
t
C
C
ENC
ENC
ENCL
DAV
DAV
F
R
DD
SS
IH
IL
MIN
IH
IL
OH
OL
IN
OUT
2
MAX
1
to T
IH
, with V
–4–
= 2.0 V, V
MAX
with V
CC
= +5 V
OL
CC
= 0.4 V and V
= +5 V
Min
+2.0
–10
–10
+2.4
Min
20
20
20
75
75
0
0
20
20
5%, V
5%, V
LOGIC
OH
b. Encode Pulse LOW
= 2.4 V)
= +5 V
LOGIC
Typ
5
5
Typ
475
725
75
75
= +5 V
10%, V
10%, V
EE
Max
+0.8
+10
+10
+0.4
Max
500
750
30
50
200
300
= –5 V
EE
= –5 V
REV. B
Units
V
V
pF
V
V
pF
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
A
A