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The 16-bit CS5525 and the 20-bit CS5526 are highly integrated Delta-Sigma analog-to-digital (A/D) converters that include an instrumentation amplifier, a PGA (programmable gain amplifier), eight digital filters and self- and system-calibration circuitry. The converters are designed to provide their own negative supply, which enables their on-chip instrumentation amplifiers to measure bipolar ground-referenced signals ≤100 mV. By directly supplying NBV with -2.5 V and with VA+ at 5 V, ±2.5 V signals (with respect to ground) can be measured. The digital filters provide programmable output update rates between 3.76 Hz to 202 Hz (XIN = 32.768 kHz). Output word rates can be increased by approximately 3x by using XIN = 100 kHz. Each filter is designed to settle to full accuracy for its output update rate in one conversion cycle. The filters with word rates of 15 Hz or less (XIN = 32.768 kHz) reject both 50 Hz and 60 Hz (±3 Hz) line interference simultaneously. Low power, single-conversion settling time, programmable output rates and the ability to handle negative input signals make these single-supply products ideal solutions for isolated and non-isolated applications. |
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| Resolution (bits) | Throughput (Sps) | Integral Linearity (%FS) | Differential Linearity (±LSB) | Number of Channels | Power Consumption (mW) | Package |
|---|---|---|---|---|---|---|
| CS5525 | ||||||
| 16 | 3 ‑ 606 | 0.0015 % | NMC | 1 | 9.4 | 20 PDIP 20 SSOP |
| CS5526 | ||||||
| 20 | 3 ‑ 606 | 7.0E-4 % | NMC | 1 | 9.4 | 20 PDIP 20 SSOP |
The 16-bit CS5525 and the 20-bit CS5526 are highly integrated Delta-Sigma analog-to-digital (A/D) converters that include an instrumentation amplifier, a PGA (programmable gain amplifier), eight digital filters and self- and system-calibration circuitry.
The converters are designed to provide their own negative supply, which enables their on-chip instrumentation amplifiers to measure bipolar ground-referenced signals ≤100 mV. By directly supplying NBV with -2.5 V and with VA+ at 5 V, ±2.5 V signals (with respect to ground) can be measured.
The digital filters provide programmable output update rates between 3.76 Hz to 202 Hz (XIN = 32.768 kHz). Output word rates can be increased by approximately 3x by using XIN = 100 kHz. Each filter is designed to settle to full accuracy for its output update rate in one conversion cycle. The filters with word rates of 15 Hz or less (XIN = 32.768 kHz) reject both 50 Hz and 60 Hz (±3 Hz) line interference simultaneously.
Low power, single-conversion settling time, programmable output rates and the ability to handle negative input signals make these single-supply products ideal solutions for isolated and non-isolated applications.
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Cirrus Logic Unveils Industry's Most Highly-Integrated 16-bit ADCS Setting New Price/Performance Standard New Crystal ADCs Reduce Overall System Cost and Simplify Data Acquisition Design | ||
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