Rainbow Electronics MAX1367 User Manual
General Description
The MAX1365/MAX1367 low-power, 4.5- and 3.5-digit,
panel meters feature an integrated sigma-delta analogto-digital converter (ADC), LED display drivers, voltage
digital-to-analog converter (DAC), and a 4–20mA
(or 0 to 16mA) current driver.
The MAX1365/MAX1367’s analog input voltage range is
programmable to either ±2V or ±200mV. The MAX1367
drives a 3.5-digit (±1999 count) display and the
MAX1365 drives a 4.5-digit (±19,999 count) display.
The ADC output directly drives the LED display as well
as the voltage DAC, which in turn drives the 4–20mA
(or 0 to 16mA) current-loop output.
In normal operation, the 0 to 16mA/4–20mA currentloop output follows the ±2V or ±200mV analog input to
drive remote panel-meter displays, data loggers, and
other industrial controllers. For added flexibility, the
MAX1365/MAX1367 allow direct access to the DAC
output and the V/I converter input.
The sigma-delta ADC does not require external precision integrating capacitors, autozero capacitors, crystal
oscillators, charge pumps, or other circuitry commonly
required in dual-slope ADC panel-meter circuits. Onchip analog input and reference buffers allow direct
interface with high-impedance signal sources. Excellent
common-mode rejection and digital filtering provide
greater than 100dB rejection of simultaneous 50Hz and
60Hz line noise. Other features include data hold, peak
detection, and overrange/underrange detection.
The MAX1365/MAX1367 require a 2.7V to 5.25V supply,
a 4.75V to 5.25V V/I supply, and a 7V to 30V loop supply. They are available in a space-saving (7mm x
7mm), 48-pin TQFP package and operate over the
extended (-40°C to +85°C) temperature range.
Applications
Automated Test Equipment
Data-Acquisition Systems
Digital Multimeters
Digital Panel Meters
Digital Voltmeters
Industrial Process Control
Features
♦ Stand-Alone, Digital Panel Meter
20-Bit Sigma-Delta ADC
4.5-Digit Resolution (±19,999 Count, MAX1365)
3.5-Digit Resolution (±1999 Count, MAX1367)
No Integrating/Autozeroing Capacitors
100MΩ Input Impedance
±200mV or ±2.000V Input Range
♦ LED Display
Common-Cathode 7-Segment LED Driver
Programmable LED Current (0 to 20mA)
2.5Hz Update Rate
♦ Output DAC and Current Driver
±15-Bit DAC with 14-Bit Linear V/I Converter
Selectable 0 to 16mA or 4–20mA Current Output
Unipolar/Bipolar Modes
±50µA Zero Scale, ±40ppmFS/°C (typ)
±0.5% Gain Error, ±25ppmFS/°C (typ)
Separate 7V to 30V Supply for Current-Loop
Output
♦ 2.7V to 5.25V ADC/DAC Supply
♦ 4.75V to 5.25V V/I Converter Supply
♦ Internal 2.048V Reference or External Reference
♦ 48-Pin, 7mm x 7mm TQFP Package
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
________________________________________________________________ Maxim Integrated Products 1
Selector Guide
19-3889; Rev 1; 1/06
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
PART TEMP RANGE
PIN-PACKAGE
MAX1365ECM -40°C to +85°C 48 TQFP
MAX1367ECM -40°C to +85°C 48 TQFP
Ordering Information
PART
RESOLUTION
(DIGITS)
PKG
CODE
MAX1365ECM 4.5 C48-6
MAX1367ECM 3.5 C48-6
Pin Configuration appears at end of datasheet.
Typical Operating Circuits appear at end of datasheet.
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(AVDD= DVDD= 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 TA = +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, DVDD ....................................................................
-0.3V to +6.0V
AIN+, AIN-, REF+, REF-.........................V
NEGV
to (AVDD+ 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
CONDITIONS
UNITS
ADC ACCURACY
MAX1365
Noise-Free Resolution
MAX1367
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
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
%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 5Hz
ANALOG INPUTS (AIN+, AIN-) (bypass to GND with 0.1µF or greater capacitors)
RANGE = GND -2.0
AIN Input Voltage Range (Note 5)
RANGE = DV
DD
-0.2
V
AIN Absolute Input Voltage
Range to GND
-2.2
V
Normal-Mode 50Hz and 60Hz
Rejection (Simultaneously)
50Hz and 60Hz ±2% 100 dB
SYMBOL
MIN TYP MAX
-19,999 +19,999
-1999 +1999
10:1
+0.5
+2.0
+0.2
+2.2
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
_______________________________________________________________________________________ 3
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Common-Mode 50Hz and 60Hz
Rejection (Simultaneously)
CMR
For 50Hz and 60Hz ±2%, R
SOURCE
<
10kΩ
150 dB
Common-Mode Rejection CMR At DC 100 dB
Input Leakage Current 10 nA
Input Capacitance 10 pF
Average Dynamic Input Current -20
nA
INTERNAL REFERENCE (REF- = GND, INTREF = DVDD)
REF Input Voltage V
REF
V
REF Output Short-Circuit Current
1mA
REF Output Temperature
Coefficient
40
ppm/°C
Load Regulation I
SOURCE
= 0 to 300µA, I
SINK
= 0 to 30µA 6
µV/µA
Line Regulation 50 µV/V
0.1Hz to 10Hz 25
Noise Voltage
10Hz to 10kHz 400
µV
P-P
EXTERNAL REFERENCE (INTREF = GND)
REF Input Voltage Differential (V
REF+
- V
REF-
)
V
Absolute REF+, REF- Input
Voltage to GND (V
REF+
Must Be
Greater Than V
REF-
)
-2.2
V
Normal-Mode 50Hz and 60Hz
Rejection (Simultaneously)
50Hz and 60Hz ±2% 100 dB
Common-Mode 50Hz and 60Hz
Rejection (Simultaneously)
CMR
For 50Hz and 60Hz ±2%, R
SOURCE
<
10kΩ
150 dB
Common-Mode Rejection CMR At DC 100 dB
Input Leakage Current 10 nA
Input Capacitance 10 pF
Average Dynamic Input Current (Note 6) -20
nA
CHARGE PUMP
Output Voltage NEGV C
NEGV
= 0.1µF to GND
V
DIGITAL INPUTS (INTREF, RANGE, PEAK, HOLD, DPSET1, DPSET2)
Input Current I
IN
VIN = 0 or DV
DD
-10
µA
Input Low Voltage V
INL
0.3 x
V
Input High Voltage V
INH
0.7 x
V
Input Hysteresis V
HYS
DV
DD
= 3V 200 mV
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= DVDD= 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 TA = +25°C, unless otherwise noted.)
TC
VREF
2.007 2.048 2.089
-2.60 -2.42 -2.30
DV
2.048
DD
+20
+2.2
+20
+10
DV
DD
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
4 _______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= DVDD= 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 TA = +25°C, unless otherwise noted.)
PARAMETER
CONDITIONS
ADC POWER SUPPLY (Note 7)
AVDD Voltage AV
DD
V
DVDD Voltage DV
DD
V
Power-Supply Rejection AV
DD
PSR
A
(Note 8) 80 dB
Power-Supply Rejection DV
DD
PSR
D
(Note 8) 100 dB
AV
DD
Current (Note 9) I
AVDD
Standby mode
µA
DVDD = +5.25V
DVDD = +3.3V
DV
DD
Current (Note 9) I
DVDD
Standby mode 20
µA
DAC POWER SUPPLY
DAC Supply Voltage
V
DAC Supply Current
mA
LINEAR REGULATOR AND V/I CONVERTER POWER REQUIREMENTS
REG_AMP Supply Voltage
V
REG_AMP Supply Current
mA
REG_VDD Supply Voltage
V
REG_VDD Supply Current Includes 20mA programmed current
mA
LED DRIVERS
LED Supply Voltage V
LEDV
V
LED Shutdown Supply Current I
SHDN
10 µA
LED Supply Current I
LEDV
176
mA
MAX1365 512
Display Scan Rate f
OSC
MAX1367 640
Hz
Segment Current Slew Rate I
SEG
/∆t25
DIG_ Voltage Low V
DIG
V
Segment-Drive Source-Current
Matching
∆I
SEG
3
%
Segment-Drive Source Current I
SEG
V
LEDV
- V
SEG
= 0.6V, R
SET
= 25kΩ
mA
LED Drivers Bias Current From AV
DD
120 µA
Interdigit Blanking Time 4µs
SYMBOL
MIN TYP MAX UNITS
2.70 5.25
2.70 5.25
640
305
320
180
V
V
V
DAC_VDD
REG_AMP
REG_VDD
2.70 5.25
0.10 0.21
4.75 5.25
0.19 0.30
5.20
25.2 27.4
2.70 5.25
180
0.178 0.300
±12
15.0 21.5 25.5
mA/µs
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
_______________________________________________________________________________________ 5
ELECTRICAL CHARACTERISTICS (continued)
(AVDD= DVDD= 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 TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
DAC OUTPUT ACCURACY
Zero-Scale Error 4–20mA or 0 to 16mA mode, TA = +25°C
µA
Zero-Scale Error Tempco ±40
Gain Error 4–20mA or 0 to 16mA mode, TA = +25°C
%FS
Gain-Error Tempco ±25
Span Linearity ±2 ±4µA
Power-Supply Rejection PSR V
EXT
= 7V to 30V 4 µA/V
Signal Path Noise 10pF to GND on 4-20OUT 2.0
4–20mA Current Limit Limited to 12.5 x V
REF
/ 1.28kΩ 20 mA
Note 1: Integral nonlinearity is the deviation of the analog value at any code from its theoretical value after nulling the gain error and
offset error.
Note 2: Offset calibrated.
Note 3: Offset nulled.
Note 4: Drift error is eliminated by recalibration at the new temperature.
Note 5: The input voltage range for the analog inputs is given with respect to the voltage on the negative input of the differential pair.
Note 6: V
AIN+
or V
AIN-
= -2.2V to +2.2V. V
REF+
or V
REF-
= -2.2V to +2.2V. All input structures are identical. Production tested on
AIN+ and REF+ only. V
REF+
must always be greater than V
REF-
.
Note 7: Power-supply currents are measured with all digital inputs at either GND or DV
DD
.
Note 8: Measured at DC by changing the power-supply voltage from 2.7V to 5.25V and measuring the effect on the conversion error
with external reference. PSRR at 50Hz and 60Hz exceeds 120dB with filter notches at 50Hz and 60Hz (Figure 1).
Note 9: LED drivers are disabled.
±50
±0.5
p p mFS /° C
p p mFS /° C
µA
RMS
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
6 _______________________________________________________________________________________
0
300
200
100
400
500
600
700
800
900
1000
2.7 3.73.2 4.2 4.7 5.2
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX1365/67 toc01
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (µA)
DAC_VDD
AV
DD
DV
DD
0
200
100
400
300
600
500
700
-40 10-15 35 60 85
SUPPLY CURRENT vs. TEMPERATURE
MAX1365/67 toc02
TEMPERATURE (°C)
SUPPLY CURRENT (µA)
AV
DD
DV
DD
DAC_VDD
MAX1365
OFFSET ERROR vs. SUPPLY VOLTAGE
MAX1365/67 toc03
SUPPLY VOLTAGE (V)
OFFSET ERROR (LSB)
4.754.253.753.25
-0.11
-0.06
-0.01
0.04
0.09
0.14
0.19
-0.16
2.75 5.25
MAX1365
OFFSET ERROR vs. TEMPERATURE
MAX1365/67 toc04
TEMPERATURE (°C)
OFFSET ERROR (LSB)
605010 20 30 40
-0.1
0
0.1
0.2
0.3
0.4
0.5
0.6
-0.2
070
MAX1365
GAIN ERROR vs. SUPPLY VOLTAGE
MAX1365/67 toc05
SUPPLY VOLTAGE (V)
GAIN ERROR (% FULL SCALE)
4.754.253.25 3.75
-0.08
-0.04
-0.06
-0.02
0
0.02
0.04
0.06
0.08
-0.10
2.75 5.25
MAX1365
GAIN ERROR vs. TEMPERATURE
MAX1365/67 toc06
TEMPERATURE (°C)
GAIN ERROR (% FULL SCALE)
605030 402010
-0.09
-0.08
-0.07
-0.06
-0.05
-0.04
-0.03
-0.02
-0.01
0
-0.10
070
MAX1365
INL (±200mV INPUT RANGE) vs. OUTPUT CODE
MAX1365/67 toc07
OUTPUT CODE
INL (COUNTS)
10,0000-10,000
-0.5
0
0.5
1.0
-1.0
-20,000 20,000
MAX1365
INL (±2V INPUT RANGE) vs. OUTPUT CODE
MAX1365/67 toc08
OUTPUT CODE
INL (COUNTS)
10,0000-10,000
-0.5
0
0.5
1.0
-1.0
-20,000 20,000
NOISE DISTRIBUTION
MAX1365/67 toc09
NOISE (LSB)
PERCENTAGE OF UNITS (%)
0.80.70.60.50.40.30.20.10-0.1
5
10
15
20
25
0
-0.2
Typical Operating Characteristics
(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. TA= +25°C, unless other-
wise noted.)
MAX1365/MAX1367
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
_______________________________________________________________________________________ 7
INTERNAL REFERENCE VOLTAGE
vs. TEMPERATURE
MAX1365/67 toc10
TEMPERATURE (°C)
REFERENCE VOLTAGE (V)
605040302010
2.046
2.045
2.047
2.049
2.048
2.051
2.050
2.053
2.052
2.054
2.044
070
INTERNAL REFERENCE VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1365/67 toc11
SUPPLY VOLTAGE (V)
REFERENCE VOLTAGE (V)
4.754.253.753.25
2.045
2.046
2.047
2.048
2.049
2.050
2.044
2.75 5.25
DATA OUTPUT RATE
vs. TEMPERATURE
MAX1365/67 toc12
TEMPERATURE (°C)
DATA OUTPUT RATE (Hz)
6035-15 10
4.92
4.98
4.96
4.94
5.00
5.02
5.04
5.06
5.08
5.10
4.90
-40 85
DATA OUTPUT RATE
vs. SUPPLY VOLTAGE
MAX1365/67 toc13
SUPPLY VOLTAGE (V)
DATA OUTPUT RATE (Hz)
4.744.233.21 3.72
4.995
4.990
4.985
5.000
5.005
5.010
5.015
5.020
4.980
2.70 5.25
OFFSET ERROR
vs. COMMON-MODE VOLTAGE
MAX1365/67 toc14
COMMON-MODE VOLTAGE (V)
OFFSET ERROR (LSB)
1.51.0-1.5 -1.0 -0.5 0 0.5
-0.15
-0.10
-0.05
0
0.05
0.10
0.15
0.20
-0.20
-2.0 2.0
V
NEG
STARTUP SCOPE SHOT
MAX1365/67 toc15
20ms/div
2V/div
1V/div
V
DD
V
NEG
CHARGE-PUMP OUTPUT VOLTAGE
vs. ANALOG SUPPLY VOLTAGE
MAX1365/67 toc16
SUPPLY VOLTAGE (V)
V
NEG
VOLTAGE (V)
4.754.253.753.25
-2.48
-2.46
-2.44
-2.42
-2.40
-2.50
2.75 5.25
SEGMENT CURRENT
vs. SUPPLY VOLTAGE
MAX1365/67 toc17
SUPPLY VOLTAGE (V)
SEGMENT CURRENT (µA)
4.744.233.723.21
5
10
15
20
25
30
0
2.70 5.25
R
ISET
= 25kΩ
-0.2
0
-0.1
0.2
0.1
0.3
0.4
-40 10-15 35 60 85
DAC ZERO-CODE OFFSET ERROR
vs. TEMPERATURE
MAX1365/67 toc18
TEMPERATURE (°C)
OFFSET ERROR (LSB)
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. TA= +25°C, unless other-
wise noted.)
Stand-Alone, 4.5-/3.5-Digit Panel Meters
with 4–20mA Output
8 _______________________________________________________________________________________
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. TA= +25°C, unless other-
wise noted.)
-0.30
-0.20
-0.25
-0.10
-0.15
-0.05
0
-40 10-15 35 60 85
DAC GAIN ERROR
vs. TEMPERATURE
MAX1365/67 toc19
TEMPERATURE (°C)
GAIN ERROR (LSB)
4–20OUT
= 21.7mA
CONV_IN
= 1V
10mA/div
500mV/div
STEP RESPONSE
MAX1365/67 toc20
100µs/div
-50
-20
-30
-40
0
-10
40
30
20
10
50
-40 -20 0 20 40 60 80
4–20OUT ZERO-SCALE ERROR
vs. TEMPERATURE
MAX1365/67 toc21
TEMPERATURE (°C)
CURRENT OUTPUT (µA)
EXTERNAL REFERENCE = 2.048V
-50
-20
-30
-40
0
-10
40
30
20
10
50
-40 -20 0 20 40 60 80
4–20OUT GAIN ERROR
vs. TEMPERATURE
MAX1365/67 toc22
TEMPERATURE (°C)
GAIN ERROR (%)
EXTERNAL REFERENCE = 2.048V
4–20mA MODE
0 TO 16mA MODE
-0.5
0
0.5
1.0
1.5
2.0
2.5
-20,000 -10,000 0 10,000 20,000
4–20OUT vs. DAC CODE
(4–20OUT SPAN LINEARITY)
MAX1365/67 toc24
DAC CODE (COUNTS)
SPAN LINEARITY (µA)
OFFSET ENABLED
(EN_I = HIGH)
-150
-100
-50
0
50
100
150
486101214161820
POWER-SUPPLY REJECTION
vs. CURRENT OUTPUT (4-20OUT)
MAX1365/67 toc23
4-20OUT OUTPUT CURRENT (mA)
POWER-SUPPLY REJECTION (nA/V)
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