MAX1454_11 Datasheet, PDF (2/25 Pages) Maxim Integrated Products – Precision Sensor Signal Conditioner with Overvoltage Protection

MAX1454
Precision Sensor Signal Conditioner
with Overvoltage Protection
ABSOLUTE MAXIMUM RATINGS
(Voltages referenced to GND.)
V_DD, V_DDF.............................................................-0.3V to +3.0V
V_DDX.......................................................................-45V to +45V
All Other Pins............................. -0.3V to Min (V_DDX + 0.3V, 6V)
Continuous Power Dissipation (T_A = +70NC)
16-Pin TSSOP (derate 11.1mW/NC above +70NC)....888.9mW
Operating Temperature Range......................... -40NC to +125NC
Junction Temperature......................................................+150NC
Storage Temperature Range............................ -65NC to +150NC
Lead Temperature (soldering, 10s)............................... +300NC
Soldering Temperature (reflow).......................................+260NC
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional opera-
tion 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 THERMAL CHARACTERISTICS (Note 1)
TSSOP
Junction-to-Ambient Thermal Resistance (q_JA)...........90NC/W
Junction-to-Case Thermal Resistance (q_JC)................27NC/W
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.maxim-ic.com/thermal-tutorial.
ELECTRICAL CHARACTERISTICS
(V_DDX = 5V, V_GND = 0V, T_A = +25NC, unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX UNITS
GENERAL CHARACTERISTICS
External Supply Voltage
External Supply Current
Oscillator Frequency
V_DDX
I_DDX
f_OSC
(Note 3)
3.0
5.0
5.5
V
2.5
3
mA
0.85
1
1.15
MHz
LDO Regulator Output Voltage
V_DD
Not to be loaded by external circuitry, must
be connected to a 0.1FF capacitor to GND
2.375
2.5
2.625
V
Power-On-Reset Threshold
External Supply Voltage-Ramp
Rate
V_POR
Referred to V_DDX pin
(Note 4)
2.4
1
V
V/ms
ANALOG INPUT
Input Impedance
Input-Referred Offset-
Temperature Coefficient
R_IN
(Notes 5, 6)
1
MI
Q1
FV/NC
Input-Referred Adjustable-
Offset Range
Offset TC = 0 at gain = 44 (Note 7)
-150
+150
mV
Nonlinearity of Signal Path
Percent of 4V span, no load, IRO[3:0] =
0000bin, source impedance = 5kI, V_OUT
= 0.5V to 4.5V; measured at V_OUT = [0.5V,
0.01
%
2.5V, 4.5V] at a gain of 112
Common-Mode Rejection
Ratio
Input-Referred Adjustable FSO
CMRR
Specified for common-mode voltages
between GND and V_DDX
(Note 8)
90
dB
1
200 mV/V
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