ADI

LTC2447IUHF#PBF

SPI 4.5V~5.5V QFN-38-EP(5x7) Analog to Digital Converters (ADC) RoHS

QFN-38-EP(5x7)ROHS3 CompliantActive

24-Bit High Speed 8-Channel ∆Σ ADCs with Selectable Multiple Reference Inputs

Manufacturer: ADI
Manufacturer part #: LTC2447IUHF#PBF
Store part #: C680725
Package / case: QFN-38-EP(5x7)
Category: Analog to Digital Converters (ADC)
Packaging: Tube-packed

Datasheet (PDF)

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10 in stock

#C680725

Stock & price checked 4 days ago

Quantity	Unit price	Pack price
1+	₹2,448.16	₹2,448.16
10+	₹2,371.49	₹23,714.90

Quantity (min 1)

1 × ₹2,448.16

₹2,448.16

excl. GST

₹2,888.83 incl. 18% GST

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Standard pack: 52 per tube

LTC2447IUHF#PBF

₹2,448.16 for 1 + GST

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Specifications

Operating Temperature: -40℃~+85℃
Interface: SPI
Quiescent Current (Iq): 30uA
Voltage - Supply: 4.5V~5.5V
Number of Channels: 4
Voltage Reference: External
Clock/Oscillator: Built-in
Clock Frequency: 100kHz~12MHz
Features: Bipolar input;Multiplexers;Integrated modulator;Auto calibration;Power-on reset
Resolution(Bits): 8kHz;24
ADC architecture: Sigma-Delta
Programmable Gain: Not supported

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tube-packed
Standard pack: 52 / Tube
Sold per: Piece
Minimum order: 1
Unit weight: 0.16 g

Overview

The LTC2446/LTC2447 4 - terminal switching enables multiplexed ratiometric measurements. Four sets of selectable differential inputs coupled with four sets of differential reference inputs allow multiple RTDs, bridges and other sensors to be digitized by a single converter. A fifth differential reference input can be selected for any input channel not requiring ratiometric measurements (thermocouples, voltages, current sense, etc.). The flexible input multiplexer allows single - ended or differential inputs coupled with a slaved reference input or a universal reference input. A proprietary delta - sigma architecture results in absolute accuracy (offset, full - scale, linearity) of 15ppm, noise as low as 200nVRMS and speeds as high as 8kHz. Through a simple 4 - wire interface, ten speed/resolution combinations can be selected. The first conversion following a speed, resolution, channel change or reference change is valid since there is no settling time between conversions, enabling scan rates of up to 4kHz. Additionally, a 2× mode can be selected for any speed - enabling output rates up to 8kHz with one cycle of latency.

Applications

Flow - Weight Scales
Pressure
Direct Temperature Measurement
Gas Chromatography

Key features

Five Selectable Differential Reference Inputs
Four Differential/Eight Single - Ended Inputs
4 - Way MUX for Multiple Ratiometric Measurements
Up to 8kHz Output Rate (External f0)
Up to 4kHz Multiplexing Rate (External f0)
Selectable Speed/Resolution: 2uVRMS Noise at 1.76kHz Output Rate 200nVRMS Noise at 13.8Hz Output Rate with Simultaneous 50/60Hz Rejection
Guaranteed Modulator Stability and Lock - Up Immunity for any Input and Reference Conditions
0.0005% INL, No Missing Codes
Autosleep Enables 20uA Operation at 6.9Hz
<5uV Offset (4.5V < Vcc < 5.5V, - 40°C to 85°C)
Differential Input and Differential Reference with GND to Vcc Common Mode Range
No Latency Mode, Each Conversion is Accurate Even After a New Channel is Selected
Internal Oscillator—No External Components
LTC2447 Includes MUXOUT/ADCIN for External Buffering or Gain
Tiny QFN 5mm × 7mm Package