AN753 datasheet(2/24 Pages) MAXIM

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Low-Cost Precision Sensor

Signal Conditioner

_______________________________________________________________________________________

ABSOLUTE MAXIMUM RATINGS

ELECTRICAL CHARACTERISTICS

(VDD = +5V, VSS = 0, 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.

Supply Voltage, VDD to VSS.........................................-0.3V, +6V

All Other Pins ...................................(VSS - 0.3V) to (VDD + 0.3V)

Short-Circuit Duration, FSOTC, OUT, BDR,

AMPOUT .................................................................Continuous

Continuous Power Dissipation (TA = +70°C)

16-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW

Operating Temperature:

MAX1452CAE/MAX1452C/D ...............................0°C to +70°C

MAX1452EAE ...................................................-40°C to +85°C

MAX1452AAE .................................................-40°C to +125°C

Junction Temperature ......................................................+150°C

Storage Temperature.........................................-65°C to +150°C

Lead Temperature (soldering, 10s) ................................ +300°C

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

GENERAL CHARACTERISTICS

Supply Voltage

VDD

4.5

5.0

5.5

Supply Current

IDD

(Note 1)

2.0

2.5

Oscillator Frequency

fOSC

0.85

1.15

MHz

ANALOG INPUT

Input Impedance

RIN

Ω

Input Referred Offset Tempco

(Notes 2, 3)

±1

µV/°C

Input Referred Adjustable

Offset Range

Offset TC = 0 at minimum gain (Note 4)

±150

Amplifier Gain Nonlinearity

Percent of +4V span, VOUT = +0.5V to 4.5V

0.01

Common-Mode Rejection Ratio

CMRR

Specified for common-mode voltages

between VSS and VDD (Note 2)

Input Referred Adjustable FSO

Range

(Note 5)

1-40

mV/V

ANALOG OUTPUT

Differential Signal-Gain Range

Selectable in 16 steps

39-

240

V/V

Configuration [5:2] 0000bin

Configuration [5:2] 0001bin

Configuration [5:2] 0010bin

Configuration [5:2] 0100bin

102

Differential Signal Gain

Configuration [5:2] 1000bin

133

143

157

V/V

Maximum Output Voltage Swing

No load from each supply

0.02

Output Voltage Low

IOUT = 1mA sinking, TA = TMIN to TMAX

0.100

0.20

Output Voltage High

IOUT = 1mA sourcing, TA = TMIN to TMAX

4.75

4.87

Output Impedance at DC

0.1

Ω

Output Offset Ratio

∆VOUT/

∆Offset

0.90

1.05

1.20

V/V

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