Key facts
- Brand
- Maxim
- Model
- MAX1450
- Documents
- 3
- Languages
- EN
- Last added
- 2012-06-06
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MAXIM MAX1450 Signal Conditioner Datasheet
The MAX1450 is an integrated circuit designed to optimize signal conditioning for piezoresistive sensors. It includes an adjustable current source for sensor excitation and a 3-bit programmable-gain amplifier (PGA). The device compensates for offset, fullspan output (FSO), offset temperature coefficient (TC), FSO TC, and FSO nonlinearity using external trimmable resistors or digital-to-analog converters.
The document provides detailed electrical characteristics, pin descriptions, and functional diagrams. Key features include rail-to-rail analog output, fast signal-path settling time under 1ms, and the ability to accept sensor outputs ranging from 10mV/V to 30mV/V.
Maxim MAX1450 specifications
| Total Typical Error Factor | 1% of sensor's inherent repeatability errors |
|---|---|
| Supply Current (Ipp) | 2.8 to 3.5 mA |
| PGA Input Impedance | 1.0 MΩ |
| Common-Mode Rejection Ratio (CMRR) | 90 dB |
| PGA Gain Range | 39 to 221 V/V |
| Output Voltage Swing | (Vss + 0.25V) to (VDD - 0.25V) |
| Bridge Drive Current Range | 0.4 to 2.0 mA |
All Maxim MAX1450 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What types of sensors is the MAX1450 optimized for?
It is optimized for piezoresistive sensor calibration and temperature compensation, though it may also be used with other resistive sensor types such as strain gauges.
What is the typical settling time of the signal path?
The fast signal-path settling time is less than 1ms.
What supply voltage range do the MAX14504 series devices support?
They operate from a single +2.3 V to +5.5 V supply.
From: Maxim MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches Datasheet
How do the MAX14505 and MAX14505A reduce click‑and‑pop sounds?
They have internal shunt switches that discharge the audio amplifier AC‑coupling capacitance at the normally open terminals, suppressing audible clicks and pops.
From: Maxim MAX14504/MAX14505/MAX14505A/MAX14506 Dual SPDT Negative Rail Analog Switches Datasheet
What supply voltage range do the MAX14508E‑MAX14511E switches support?
They operate from +2.7 V to +5.0 V.
What is the typical on‑resistance of these switches?
The typical on‑resistance is 2.40 Ω.