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Legendsemi LHA5115SGQL product image
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Legendsemi LHA5115SGQLRoHS

Manufacturer
LegendsemiAsian Brands
MPN
LHA5115SGQL
LCSC Part #
C42459211
Packaging
QFN-40-EP(6x6)
Customer #
Key Attributes
24-bit ADC integrated with AFE
Datasheetpdf iconLegendsemi LHA5115SGQL
In-Stock: 143
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QtyUnit PriceTotal Amount
1+$ 14.0015$ 14.00
10+$ 13.3394$ 133.39
30+$ 12.1923$ 365.77
100+$ 11.192$ 1119.20
Standard Packaging250/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Data Acquisition/Analog to Digital Converters (ADC)
ManufacturerLegendsemi
PackagingQFN-40-EP(6x6)
Operating Temperature-40℃~+105℃
InterfaceSPI
Quiescent Current (Iq)8.4mA
Voltage - Supply4.5V~5.5V
Number of Channels8
Integral non - linearity-
Clock/OscillatorBuilt-in;External
Clock Frequency8MHz;8MHz~8.192MHz
FeaturesBipolar input;Multi-chip synchronization;Multiplexers;Integrated modulator;Built-in digital filter;Input buffer;Synchronous triggering;Power-on reset
Voltage ReferenceBuilt-in
Resolution(Bits)24;125kHz
S/N Ratio85dB
ADC architectureSigma-Delta
Programmable Gain-
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging250
Sales UnitPiece

Introduction

AI Translation

The LHA5115 is a low power, low noise, 24-bit, sigma-delta (Σ-Δ) analog-to-digital converter (ADC) that integrates an analog front end (AFE) for eight fully differential or 16 single-ended, high impedance (≥1 MΩ), bipolar, ±10 V voltage inputs. The LHA5115 integrates key analog and digital signal conditioning blocks to configure eight individual setups for each analog input channel in use. The LHA5115 features a maximum channel scan rate of 24,845SPS (40.25μs) for fully settled data. The embedded 2.5 V, low drift (±3 ppm/℃), band gap internal reference (with output reference buffer) reduces the external component count. The digital filter allows flexible settings, including simultaneous 50 Hz and 60 Hz rejection at a 27.27SPS output data rate. The user can select different filter settings depending on the requirements of each channel in the application. The automatic channel sequencer enables the ADC to switch through each enabled channel. The LHA5115 operates with a single power supply that allows simplified use in galvanically isolated applications. The specified operating temperature range is -40℃ to +105℃. The LHA5115 is housed in a 40-lead, 6 mm x 6 mm QFN.

Features

AI Translation
  • 24-bit ADC with integrated AFE
  • Fast and flexible output rate: 2.5SPS to 125kSPS
  • Channel scan data rate of 24,845SPS per channel (40.25μs settling)
  • 85dB common mode rejection of 50 Hz and 60 Hz at 20SPS per channel
  • ±10 V inputs, either 8 differential or 16 single-ended
  • VIN pin absolute maximum rating ±65 V
  • Absolute input pin voltage up to ±20 V
  • Minimum 1MΩ impedance
  • On-chip 2.5 V reference
  • ±0.12% initial accuracy at 25°C, ±3 ppm/°C (typical) drift
  • Internal or external clock
  • Power supplies: AVDD = 4.5 V to 5.5 V, IOVDD = 2 V to 5.5 V
  • Total current consumption AVDD + IOVDD (IDD) = 8.4 mA, all buffers on
  • Temperature range: -40°C to +105°C
  • 3-wire or 4-wire serial digital interface (Schmitt trigger on SCLK)
  • SPI, QSPI, MICROWIRE, and DSP compatible

Applications

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  • Process control
  • Programmable logic controller (PLC) and distributed control system (DCS) modules
  • Instrumentation and measurement