Specifications

77Sensors: Recommended Solutions
Recommended Solutions
Pressure Sensors and Weigh Scales
Part Description Features Benefits
ADCs
MAX1415/16
MX7705
16-bit, low-power, 2-channel,
sigma-delta ADCs
Two differential channels, PGA,
single-supply operation
Highly flexible ADC; interfaces
with a wide range of sensors.
MAX1400/01/02/03 18-bit, 5-channel delta-sigma
ADCs
Three differential channels, PGA,
precision current sources for
excitation, burnout detection
High integration produces a more
precise sensor that measures both
pressure and temperature with
one ADC.
MA X11040K 24-bit, 4-channel, simultaneous
sampling sigma-delta ADC
Cascadable up to 32 channels,
106dB SNR at 16ksps, overvoltage
protection (OVP)
Eases interface design for sensors
that require accurate multichannel
amplitude and phase data.
MAX11200/01/02 Ultra-low-power, sigma-delta
ADCs
21-bit noise-free range at 10sps, 3V
supply, 0.45mW, four GPIOs
Enable very high-resolution sensor
interfaces with minimal impact on
power budget.
Signal Conditioners
MAX1454 Precision sensor signal conditioner
with over/reverse voltage
protection
45V over/reverse voltage
protection; input fault detection,
16-bit resolution with 6V/V to
2048V/V signal path gain
Protects against power transient/
surge and enhances safety.
MAX1452 Low-cost, precision sensor signal
conditioner
Multitemperature calibration,
current and voltage excitation,
fast 150µs response, single-
pin programmable, 4–20mA
applications
Integrated signal-conditioner
simplifies designs and fits a wide
range of sensor applications.
MAX1464 Low-power, low-noise,
multichannel, digital sensor
conditioner
Integrated 16-bit ADC, DACs, and
CPU; programmable compensation
algorithm; digital, analog,
and PWM outputs; 4–20mA
application
Accurate signal conditioner
interfaces directly with
microcontroller to save space.
Amplifiers
MAX9617/18 Ultra-precision, zero-drift op amps 1.5MHz gain bandwidth (GBW),
59μA supply current, 10μV (max)
zero-drift input offset voltage
(V
OS
), single and dual packaging
versions
Provide high-precision
measurements for a wide variety
of low-frequency applications.
MAX9943/44 High-voltage, precision, low-
power op amps
Wide 6V to 38V supply range, 2.4
MHz GBW
Provide design flexibility for a
wide range of applications.
For a list of Maxim’s recommended pressure-sensor solutions, please go to: www.maxim-ic.com/psi.