AD7890AR-2 Analog Devices Inc, AD7890AR-2 Datasheet - Page 7

• Manufacturer Part Number: AD7890AR-2
• Description: A/D Converter (A-D) IC
• Manufacturer: Analog Devices Inc
• Type: Data Acquisition System (DAS)r

Specifications of AD7890AR-2

• No. Of Bits: 12 Bit
• No. Of Channels: 8
• Rohs Status: RoHS non-compliant
• Resolution (bits): 12 b
• Sampling Rate (per Second): 117k
• Data Interface: Serial
• Voltage Supply Source: Single Supply
• Voltage - Supply: 0 V ~ 2.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)

DSCC FORM 2234
APR 97
See footnotes at end of table.
Master clock frequency 6/
Master clock input low time
Master clock input high time
Digital output rise time 7/
Digital output fall time 7/
Conversion time
CONVST pulse width
RFS low to SCLK falling
edge
RFS low to valid delay 8/
SCLK high pulse width
SCLK low pulse width
SCLK rising edge to data
valid delay 8/
SCLK rising edge to RFS
delay
Bus relinquish time after
rising edge of SCLK 9/
TFS low to SCLK falling edge
Data valid to TFS falling
edge setup time
(A2 address bit)
Data valid to SCLK falling
edge setup time
DEFENSE SUPPLY CENTER COLUMBUS
Test
MICROCIRCUIT DRAWING
COLUMBUS, OHIO 43216-5000
STANDARD
t
Symbol
TABLE I. Electrical performance characteristics - continued.
CONVERT
t
t
f
CLKINH
CLKINL
CLKIN
t
CST
t
t
t
t
t
t
t
t
t
t
t
t
10
R
F
1
2
3
4
5
6
7
8
9
unless otherwise specified
Conditions 1/, 3/, 5/
-55 C
T
A
+125 C
SIZE
A
subgroups
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
9, 10, 11
Group A
REVISION LEVEL
Device
type
C
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
01
t
t
0.3 x
0.3 x
CLKIN
CLKIN
100
Min
0.1
20
0
0
Limits
SHEET
5962-95615
t
t
t
t
CLKINH
CLKINH
CLKINL
+ 50
+ 50
Max
CLKIN
2.5
5.9
25
25
25
20
40
50
7
MHz
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
s