MAX1365 Datasheet, PDF (7/25 Pages) Maxim Integrated Products – Stand-Alone, 4.5-/3.5-Digit Panel Meters with 4-20mA Output

Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
Typical Operating Characteristics (continued)
(A_VDD = D_VDD = +5V, V_{DAC_VDD} = +5.0V, GND = 0, LEDG = 0, V_LEDV = +2.7V to +5.25V, V_REF+ - V_REF- = 2.048V (external refer-
ence), V_EXT = 7V, C_REF+ = C_REF- = 0.1µF, C_NEGV = 0.1µF. Internal clock mode, unless otherwise noted. T_A = +25°C, unless other-
wise noted.)
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
2.054
2.053
2.052
2.051
2.050
2.049
2.048
2.047
2.046
2.045
2.044
0 10 20 30 40 50 60 70
TEMPERATURE (°C)
DATA OUTPUT RATE
vs. SUPPLY VOLTAGE
5.020
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
2.050
2.049
2.048
2.047
2.046
2.045
2.044
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
OFFSET ERROR
vs. COMMON-MODE VOLTAGE
0.20
DATA OUTPUT RATE
vs. TEMPERATURE
5.10
5.08
5.06
5.04
5.02
5.00
4.98
4.96
4.94
4.92
4.90
-40 -15
10
35
60
85
TEMPERATURE (°C)
V_NEG STARTUP SCOPE SHOT
5.015
5.010
0.15
V_DD
0.10
2V/div
5.005
0.05
5.000
4.995
0
1V/div
V_NEG
-0.05
4.990
-0.10
4.985
-0.15
4.980
2.70 3.21 3.72 4.23 4.74 5.25
SUPPLY VOLTAGE (V)
-0.20
-2.0 -1.5 -1.0 -0.5 0 0.5 1.0 1.5 2.0
COMMON-MODE VOLTAGE (V)
20ms/div
CHARGE-PUMP OUTPUT VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
-2.40
-2.42
-2.44
-2.46
SEGMENT CURRENT
vs. SUPPLY VOLTAGE
30
R_ISET = 25kΩ
25
20
15
10
DAC ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
0.4
0.3
0.2
0.1
0
-2.48
5
-0.1
-2.50
2.75 3.25 3.75 4.25 4.75 5.25
SUPPLY VOLTAGE (V)
0
2.70 3.21 3.72 4.23 4.74 5.25
SUPPLY VOLTAGE (V)
-0.2
-40 -15
10
35
60
85
TEMPERATURE (°C)
_______________________________________________________________________________________ 7