Datasheet

MAX154/MAX158
CMOS High-Speed 8-Bit ADCs with
Multiplexer and Reference
4 _______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
2.520
2.480
-50 150


REFERENCE TEMPERATURE DRIFT
2.490
2.510
MX7824/28-1
AMBIENT TEMPERATURE (°C)
REF OUT VOLTAGE (V)
2.500
100
050
20
0
-100 150

OUTPUT CURRENT
vs. TEMPERATURE
4
12
16
MX7824/28-2
AMBIENT TEMPERATURE (°C)
OUTPUT CURRENT (mA)
8
100
-50 0 50
V
DD
= 5V
I
SOURCE
V
OUT
= 2.4V
I
SINK
V
OUT
= 0.4V
2.0
0
300 900

ACCURACY 
vs. DELAY BETWEEN CONVERSIONS (t
p
)
0.5
1.0
1.5
MX7824/28-3
t
p
(ns)
LINEARITY ERROR (LSB)
700 800400 500 600
V
DD
= 5V
V
REF
= 5V
2.0
0
05

ACCURACY vs. V
REF

[V
REF
= V
REF
(+) - V
REF
(-)]
0.5
1.0
1.5
MX7824/28-4
V
REF
(V)
LINEARITY ERROR (LSB)
3412
V
DD
= 5V
3k
3k
100pF
DGND
DBN
a. High-Z to V
OH
b. High-Z to V
OL
DBN
+5V
DGND
10pF
3k
3k
100pF
DGND
DBN
a. High-Z to V
OH
b. High-Z to V
OL
DBN
+5V
DGND
10pF
8
2
-100 150

POWER-SUPPLY CURRENT vs. TEMPERATURE
(NOT INCLUDING REFERENCE LADDER)
3
4
5
6
7
MX7824/28-5
AMBIENT TEMPERATURE (°C)
I
DD
– SUPPLY CURRENT (mA)
50 100-50 0
V
DD
= 5.25V

V
DD
= 5V

V
DD
= 4.75V

Figure 1. Load Circuits for Data-Access Time Test
Figure 2. Load Circuits for Data-Hold Time Test