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Linear Technology Releases New 32-bit Analog-to-Digital Converter
The LTC2500 is an ultrahigh precision 32-bit successive approximation ADC with integrated digital filters
Linear Technology has released the LTC2500-32, an ultrahigh precision 32-bit successive approximation register (SAR) analog-to-digital converter (ADC).
The LTC2500-32 is a new and enabling approach for precision measurement applications,
blending the high accuracy and speed of Linear Technology’s proprietary SAR ADC architecture
with flexible integrated digital filters to optimize system signal bandwidth and
ease analog anti-aliasing filter requirements. The LTC2500-32 simultaneously provides two outputs:
(1) a 32-bit low noise digitally filtered output that achieves up to 148dB of dynamic range and
(2) a 32-bit 1Msps no latency output comprising an overrange detection bit,
a 24-bit representation of the input voltage difference, and a 7-bit representation of the common mode input voltage.
The no latency output is inherently perfectly matched to the digitally filtered output, avoiding the mismatch and
drift that typically occur in applications requiring an additional faster ADC to monitor signal integrity
in parallel with a precision ADC. The wide input common mode range and high CMRR enable the LTC2500-32
to interface signals with varying common mode, simplifying the analog signal chain. Each of the two outputs provides a
highly accurate representation of the voltage difference applied between the two input terminals.
Key Features of the LTC2500
The company's Web site address is www.linear.com.
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