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ADI AD7190BRUZRoHS

Manufacturer
MPN
AD7190BRUZ
LCSC Part #
C578396
Packaging
TSSOP-24
Customer #
Key Attributes
4.8kHz ultra-low noise 24-bit Σ-Δ ADC with built-in PGA
Datasheetpdf iconADI AD7190BRUZ
In-Stock: 204
204 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 13.0931$ 12.0457$ 12.05
10+$ 11.5208$ 10.5992$ 105.99
62+$ 9.6645$ 8.8914$ 551.27
124+$ 8.8596$ 8.1509$ 1010.71
Standard Packaging62/Full Tube
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC)
ManufacturerADI
PackagingTSSOP-24
Operating Temperature-40℃~+105℃
InterfaceSPI
Quiescent Current (Iq)2uA
Voltage - Supply4.75V~5.25V;2.7V~5.25V
Number of Channels2
Integral non - linearity5LSB
Voltage ReferenceBuilt-in;External
Clock/OscillatorBuilt-in;External
Clock Frequency4.92MHz;2.4576MHz~5.12MHz
FeaturesBipolar input;Multi-chip synchronization;Built-in temperature sensor;Bipolar power supply;Multiplexers;Integrated modulator;Built-in digital filter;Auto calibration;Input buffer
Resolution(Bits)24;4.7Hz
ADC architectureSigma-Delta
Programmable GainSupport

Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging62
Sales UnitPiece

Introduction

AI Translation

AD7190 is a low-noise, complete analog front end designed for high-precision measurement applications, incorporating a low-noise, 24-bit Σ-Δ ADC. The on-chip low-noise programmable gain stage allows small signals to be applied directly to the input.

The device can be configured for two differential inputs or four pseudo-differential inputs. The on-chip channel sequencer can enable multiple channels, and the AD7190 performs conversions sequentially across all enabled channels, simplifying communication with the device. The on-chip 4.92MHz clock can serve as the ADC clock source; alternatively, an external clock or crystal can be used. The output data rate is programmable from 4.7Hz to 4.8kHz.

The device offers two digital filter options. The choice of filter affects RMS noise and noise-free resolution at the programmed output data rate, settling time, and 50Hz/60Hz rejection. For applications requiring settled output on every conversion, the AD7190 features a zero-latency option.

The device operates from a 5V analog supply and a 2.7V to 5.25V digital supply, with 6mA power consumption, and is available in a 24-lead TSSOP package.

Features

AI Translation
  • RMS noise: 8.5 nV (4.7 Hz, G = 128)
  • 16-bit noise-free resolution (2.4 kHz, G = 128)
  • Up to 22.5-bit noise-free resolution (G = 7)
  • Offset drift: 5 nV/°C
  • Gain drift: 1 ppm/°C
  • Stable time drift characteristics
  • 2 differential / 4 pseudo-differential input channels
  • Auto channel sequencer
  • Programmable gain (1 to 128)
  • Output data rate: 4.7 Hz to 4.8 kHz
  • Internal or external clock
  • Simultaneous 50 Hz/60 Hz rejection
  • 4 general-purpose digital outputs
  • Supply voltage AVDD: 4.75 V to 5.25 V, DVDD: 2.7 V to 5.25 V
  • Current: 6 mA
  • Temperature range: -40°C to +105°C
  • Interface: 3-wire serial interface, SPI, QSPI, MICROWIRE, and DSP compatible, Schmitt trigger on SCLK

Applications

AI Translation
  • Electronic scales
  • Strain gauge sensors
  • Pressure measurement
  • Temperature measurement
  • Chromatographs
  • PLC/DCS analog input modules
  • Data acquisition
  • Medical and scientific instruments