Rainbow Electronics MAX1367 User Manual
Page 2
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(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.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
AV
DD,
DV
DD ....................................................................
-0.3V to +6.0V
AIN+, AIN-, REF+, REF-.........................V
NEGV
to (AV
DD
+ 0.3V)
REG_FORCE, CMP, DAC_VDD, DACVOUT,
CONV_IN, 4-20OUT .............................-0.3V to (AV
DD
+ 0.3V)
EN_BPM, EN_I, REFSELE, DACDATA_SEL, INTREF, RANGE,
DPSET1, DPSET2, HOLD, PEAK, DPON,
CS_DAC...............................................-0.3V to (DV
DD
+ 0.3V)
NEGV .......................................................-2.6V to (AV
DD
+ 0.3V)
LED_EN....................................................-0.3V to (DV
DD
+ 0.3V)
SET...........................................................-0.3V to (AV
DD
+ 0.3V)
REG_AMP, REG_VDD ...........................................-0.3V to +6.0V
LEDV......................................................................-0.3V to +6.0V
LEDG .....................................................................-0.3V to +0.3V
GND_DAC .............................................................-0.3V to +0.3V
GND_V/I.................................................................-0.3V to +0.3V
SEG_ to LEDG.........................................-0.3V to (V
LEDV
+ 0.3V)
DIG_ to LEDG..........................................-0.3V to (V
LEDV
+ 0.3V)
REF_DAC .................................................-0.3V to (AV
DD
+ 0.3V)
DIG_ Sink Current .............................................................300mA
DIG_ Source Current...........................................................50mA
SEG_ Sink Current . ............................................................50mA
SEG_ Source Current..........................................................50mA
Maximum Current Input into Any Other Pin . ......................50mA
Continuous Power Dissipation (T
A
= +70°C)
48-Pin TQFP (derate 22.7mW/°C above +70°C).....1818.2mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range .............................-60°C to +150°C
Junction Temperature ......................................................+150°C
Lead Temperature (soldering, 10s) .................................+300°C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
ADC ACCURACY
MAX1365
-19,999
+19,999
Noise-Free Resolution
MAX1367
-1999
+1999
Counts
2.000V range
±1
Integral Nonlinearity (Note 1)
INL
200mV range
±1
Counts
Range Change Ratio
(V
AIN+
- V
AIN-
= 0.100V) on 200mV range;
(V
AIN+
- V
AIN-
= 0.100V) on 2.0V range
10:1
Ratio
Rollover Error
V
AIN+
- V
AIN-
= full scale
±1
Counts
Output Noise
10
µV
P-P
Offset Error (Zero Input Reading)
V
AIN+
- V
AIN-
= 0 (Note 2)
-0
+0
Counts
Gain Error
(Note 3)
-0.5
+0.5
%FSR
Offset Drift (Zero Reading Drift)
V
AIN+
- V
AIN-
= 0 (Note 4)
0.1
µV/°C
Gain Drift
±1
ppm/°C
INPUT CONVERSION RATE
Update Rate
5
Hz
ANALOG INPUTS (AIN+, AIN-) (bypass to GND with 0.1µF or greater capacitors)
RANGE = GND
-2.0
+2.0
AIN Input Voltage Range (Note 5)
RANGE = DV
DD
-0.2
+0.2
V
AIN Absolute Input Voltage
Range to GND
-2.2
+2.2
V
Normal-Mode 50Hz and 60Hz
Rejection (Simultaneously)
50Hz and 60Hz ±2%
100
dB