Rainbow Electronics MAX1367 - Manual (Page 4)

MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AV DD = DV DD = DAC_VDD = +2.7V to +5.25V, GND = 0, V LEDV = +2.7V to +5.25V, LEDG = 0, V REF+ - V REF- = 2.048V (external
reference), 4-20OUT = 7V, V REG_AMP = +5.0V, C REF+ = 0.1µF, REF- = GND, C NEGV = 0.1µF. Internal clock mode, unless otherwise
noted. All specifications are at T A = T MIN to T MAX . Typical values are at T A = +25°C, unless otherwise noted.)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
ADC POWER SUPPLY (Note 7)
AV DD Voltage AV DD 2.70 5.25 V
DV
DD
Voltage DV
DD
2.70 5.25 V
Power-Supply Rejection AV DD PSR A (Note 8) 80 dB
Power-Supply Rejection DV DD PSR D (Note 8) 100 dB
640
AV DD Current (Note 9) I AVDD
Standby mode 305
µA
DV DD = +5.25V 320
DV DD = +3.3V 180 DV DD Current (Note 9) I DVDD
Standby mode 20
µA
DAC POWER SUPPLY
DAC Supply Voltage V DAC_VDD 2.70 5.25 V
DAC Supply Current 0.10 0.21 mA
LINEAR REGULATOR AND V/I CONVERTER POWER REQUIREMENTS
REG_AMP Supply Voltage V REG_AMP 4.75 5.25 V
REG_AMP Supply Current 0.19 0.30 mA
REG_VDD Supply Voltage V REG_VDD 5.20 V
REG_VDD Supply Current Includes 20mA programmed current 25.2 27.4 mA
LED DRIVERS
LED Supply Voltage V LEDV 2.70 5.25 V
LED Shutdown Supply Current I SHDN 10 µA
LED Supply Current I LEDV 176 180 mA
MAX1365 512
Display Scan Rate f OSC
MAX1367 640
Hz
Segment Current Slew Rate I SEG / ∆t 25 mA/µs
DIG_ Voltage Low V DIG 0.178 0.300 V
Segment-Drive Source-Current
Matching
∆I
SEG 3 ±12 %
Segment-Drive Source Current I SEG V LEDV - V SEG = 0.6V, R SET = 25k Ω 15.0 21.5 25.5 mA
LED Drivers Bias Current From AV
DD
120 µA
Interdigit Blanking Time 4 µs