Rainbow Electronics MAX1367 - Manual (Page 22)

MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
22 ______________________________________________________________________________________
MAX1365
MAX6126
0.1 µF 10 µF
10 µF
0.1 µF
0.1 µF
10 µF
10 µF
L ISO
R L
2.7V TO
5.25V
4.75V TO
5.25V
DEPLETION-
MODE
FET
V EXT
7V TO 30V
4-20mA
PLC INPUT
ADC
AIN+
IN
DAC_VDD
SUPPLY VOLTAGE
0.1 µF
AIN-
LEDV
4-20mA/0 TO 16mA
CURRENT-LOOP OUTPUT
LED_EN
DV DD
AV DD
DAC_VDD
GND_DAC REF_DAC
SET NEGV GND REF- REF+ GND_V/I LEDG
DACVOUT
OUTF
OUTS
CONV_IN
EN_BPM
EN_I
TO DV DD
DACDATA_SEL
CS_DAC
REFSELE
INTREF
RANGE
PEAK
HOLD
DPON
DPSET2
DPSET1
DIG0–DIG4
DIGIT
CONNECTIONS
SEGA–SEGDP
SEGMENT
CONNECTIONS
V IN
CMP
GNDS GND
REG_FORCE
REG_VDD
REG_AMP
4-20OUT
25k Ω
0.1 µF
0.1 µF
MAX1365 Typical Operating Circuit