Operating Temperature Range ......................... -40°C to +125°C
Functional Temperature Range
(Startup condition) ........................................ -55°C to +125°C
Maximum Junction Temperature .....................................+150°C
Storage Temperature Range ............................ -65°C to +150°C
Soldering Temperature (reflow) .......................................+260°C
Lead Temperature ...........................................................+300°C
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.
Package Information
32 TQFN
PACKAGE CODE
Outline Number
Land Pattern Number
Thermal Resistance, Four-Layer Board:
Junction to Ambient (θ
JA
)
Junction to Case (θ
JC
)
40.2°C/W
2.0°C/W
T3255
21-0140
90-0015
For the latest package outline information and land patterns (footprints), go to
www.maximintegrated.com/packages.
Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
Note 1:
Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-layer
board. For detailed information on package thermal considerations, refer to
www.maximintegrated.com/thermal-tutorial.
www.maximintegrated.com
Maxim Integrated
│
3
MAX12900
Ultra-Low-Power 4-20mA Sensor Transmitter
Electrical Characteristics
Voltage Reference
V
CCI
= +3.0V to +5.5V, V
GND
= 0V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C, V
CCI
= +3.3V.
(Note 1)
PARAMETER
STATIC
Supply Voltage
V
CCI
Line Regulation
V
CC
Line Regulation
Output Voltage
Output Voltage
Temperature Coefficient
Temperature Hysteresis
Load Regulation
Short-Circuit Current
Maximum Capacitive
Load
DYNAMIC
V
CCI
Ripple Rejection
V
CC
Ripple Rejection
Turn-On Settling Time
Noise Voltage
V
REF
/
V
CCI
V
REF
/
V
CC
t
R
e
REF
V
CCI
= 3.3V, f = 120Hz
V
CC
= 12V, V
CC
I = 3.3V, f = 120Hz
From 90% of V
CCI
to within 0.1% of V
REF
,
C
REF
= 2nF
0.1Hz to 10Hz
10Hz to 10kHz
90
160
85
40
125
dB
dB
µs
µV
p-p
µV
RMS
V
CCI
∆V
REF
/
∆V
CCI
∆V
REF
/
∆V
CC
V
OUT
TCV
OUT
∆V
REF
/
Cycle
∆V
REF
/
∆I
OUT
I
SC
C
REF
Guaranteed by line regulation test
3.0V ≤ V
CCI
≤ 5.5V
4.3V ≤ V
CC
≤ 36V, V
CCI
= 3.3V
T
A
= +25°C
C
REF
= 2nF (Note 2)
C
REF
= 2nF
Sourcing 0V ≤ I
OUT
≤ 500 µA
Short to GND
2.495
3.0
20
1.2
2.500
2
-140
0.14
3
2
0.6
2.505
10
5.5
140
V
µV/V
nV/V
V
ppm/°C
ppm
µV/µA
mA
nF
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VOLTAGE REFERENCE
2.5V
www.maximintegrated.com
Maxim Integrated
│
4
MAX12900
Ultra-Low-Power 4-20mA Sensor Transmitter
Electrical Characteristics (continued)
PWM Conditioners
V
CCI
= +3.0V to +5.5V, V
GND
= 0V, outputs connected to 100kΩ in parallel with 10pF terminated to V
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