| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,010 pcs
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2010 pcs | On Request | 1 | On Request | On Request | 24+ | On Request | On Request | |
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1,888 pcs
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1888 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AD7191BRUZ is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) ADC. The on-chip low noise gain stage allows signals of small amplitude to be interfaced directly to the ADC. It has two differential analog inputs and includes a temperature sensor for compensation.
The device features pin-programmable output data rates of 10 Hz, 50 Hz, 60 Hz, and 120 Hz, with simultaneous 50 Hz and 60 Hz rejection at 10 Hz or 50 Hz. The on-chip PGA offers gains of 1, 8, 64, and 128, supporting full-scale differential input ranges from ±5 V (gain 1) down to ±39 mV (gain 128). Typical RMS noise is 15 nV at gain 128 and 10 Hz output rate, providing up to 21.5 noise-free bits at gain 1. Offset drift is 5 nV/°C and gain drift is 1 ppm/°C.
The AD7191BRUZ operates from a 3 V to 5.25 V supply, consuming 4.35 mA. It is housed in a 24-lead TSSOP package for surface mount assembly. The SPI-compatible interface includes a Schmitt trigger on SCLK. The device is specified over the industrial temperature range of -40°C to +105°C. Typical applications include weigh scales, strain gauge transducers, pressure measurement, and medical instrumentation.
The AD7191BRUZ has a resolution of 24 bits.
The supply voltage range is 3 V to 5.25 V according to the datasheet, with a database note of 2.7 V to 5.25 V.
The operating temperature range is -40°C to +105°C.
It is available in a 24-lead TSSOP package (24-TSSOP, 0.173" width, 4.40mm width).
According to the database, it is listed as RoHS3 Compliant, but this is unverified.
It has two differential analog inputs.
It uses an SPI data interface.