AD7870LP-REEL Analog Devices, AD7870LP-REEL Datasheet - Page 8

• Manufacturer Part Number: AD7870LP-REEL
• Manufacturer: Analog Devices

DSCC FORM 2234
APR 97
1/
2/
3/
4/
5/
6/
7/
8/
9/
10/ Test t
11/ SCLK mark/space ratio measured from a voltage level of 1.6 V is 40/60 to 60/40.
12/ SDATA will drive higher capacitive loads but this will add the t
SCLK rising edge to
Bus relinquish time
Data setup prior to
HBEN to CS setup
HBEN to CS hold
Functional test
CS to RD setup
CS to BUSY propagation
CS to RD hold
after SCLK
delay
BUSY
SSTRB
V
f
Measured with respect to internal reference and includes bipolar offset error.
SNR calculation includes distortion and noise components.
Measured only at initial design characterization and after design or process changes which might affect this
parameter. These limits are guaranteed even though they are not tested.
All input signals are specified with t
Serial timing is measured with a 4.7 k
The capacitance on all three outputs is 35 pF.
See figures 3 and 4.
Test t
(4.7 k
CLK
DD
DEFENSE SUPPLY CENTER COLUMBUS
= +5 V, V
= 2.5 MHz.
6
7
is measured loaded and defined as the time required for an output to cross 0.8 V or 2.4 V.
is measured loaded and defined as the time required for the data lines to change 0.5 V.
Test
|| C
MICROCIRCUIT DRAWING
COLUMBUS, OHIO 43216-5000
L
) and hence the time to reach 2.4 V.
SS
= -5 V, AGND = DGND = 0 V, unless otherwise stated.
STANDARD
t
t
t
t
t
t
t
t
FT
Symbol
13
14
15
16
17
18
19
20
TABLE I. Electrical performance characteristics – Continued.
r
= t
5/, 6/, 7/, 8/
5/, 6/, 7/, 8/
Mode 2, 5/, 6/, 7/, 8/
5/, 6/, 7/, 8/
5/, 6/, 7/, 8/
Mode 2, 5/, 6/, 7/, 8/
5/, 6/, 7/, 8/
5/, 6/, 7/, 8/
See 4.4.1b
f
unless otherwise specified
pull-up resistor on SDATA and SSTRB and a 2 k
= 5 ns (10% to 90% of 5 V) and timed from a voltage level of 1.6 V.
-55 C
Conditions 1/ 2/
T
A
+125 C
12
since it increases the external RC time circuit
SIZE
A
subgroups
Group A
9,10,11
9,10,11
9,10,11
9,10,11
9,10,11
9,10,11
9,10,11
9,10,11
7,8
REVISION LEVEL
Device
type
01
01
01
01
01
01
01
01
01
A
pull-up on SCLK.
200
Min
20
10
60
0
0
0
Limits
Max
100
100
120
SHEET
5962-90632
ns
ns
ns
ns
ns
ns
ns
ns
8
Unit