LTC2372CUH-18
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Analog Devices Inc. LTC2372CUH-18

Manufacturer No:
LTC2372CUH-18
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC ADC 18BIT SAR 32QFN
Delivery:
Payment:
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Product Introduction

Overview

The LTC2372-18, produced by Analog Devices Inc., is a high-performance, low noise, and high-speed analog-to-digital converter (ADC). This 18-bit successive approximation register (SAR) ADC operates from a single 5V supply and features an 8-channel input multiplexer. It supports fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges, making it highly versatile for various applications. The LTC2372-18 is known for its excellent linearity, with ±2.75LSB INL (maximum) and no missing codes at 18 bits, along with a high signal-to-noise ratio (SNR) of 100dB (fully differential) and 95dB (pseudo-differential).

Key Specifications

Parameter Value Units
Number of Bits 18 -
Sampling Rate 500 ksps -
Number of Inputs 8 -
Input Type Differential, Pseudo-Differential -
Data Interface SPI -
Supply Voltage (Analog/Digital) 4.75 V ~ 5.25 V V
Reference Type Internal -
Reference Voltage 2.048 V V
Temperature Coefficient (Reference) 20 ppm/°C (max) ppm/°C
Power Dissipation 27 mW mW
Operating Temperature Range 0°C to 70°C (C grade), -40°C to 85°C (I grade), -40°C to 125°C (H grade) °C
Package 32-WFQFN Exposed Pad -

Key Features

  • Highly configurable, low crosstalk 8-channel input multiplexer supporting fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges.
  • Excellent linearity with ±2.75LSB INL (maximum) and no missing codes at 18 bits.
  • High signal-to-noise ratio (SNR) of 100dB (fully differential) and 95dB (pseudo-differential).
  • Onboard low drift (20ppm/°C max) 2.048V temperature-compensated reference and a single-shot capable reference buffer.
  • High speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3.3V, and 5V logic.
  • Internal oscillator for setting the conversion time, reducing external timing considerations.
  • Low power consumption with automatic nap mode between conversions and a sleep mode reducing power to 300μW during inactive periods.

Applications

  • Data acquisition systems requiring high precision and speed.
  • Industrial control and automation systems.
  • Medical devices and diagnostic equipment.
  • Aerospace and defense applications.
  • Test and measurement instruments.
  • High-speed imaging and instrumentation.

Q & A

  1. What is the resolution of the LTC2372-18 ADC?

    The LTC2372-18 is an 18-bit successive approximation register (SAR) ADC.

  2. What is the sampling rate of the LTC2372-18?

    The LTC2372-18 has a sampling rate of 500 ksps.

  3. How many input channels does the LTC2372-18 have?

    The LTC2372-18 features an 8-channel input multiplexer.

  4. What types of analog input ranges are supported by the LTC2372-18?

    The LTC2372-18 supports fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges.

  5. What is the signal-to-noise ratio (SNR) of the LTC2372-18?

    The SNR is 100dB (fully differential) and 95dB (pseudo-differential).

  6. What is the power consumption of the LTC2372-18 during active and inactive periods?

    The LTC2372-18 dissipates 27 mW during active periods and can reduce power consumption to 300μW in sleep mode.

  7. What is the operating temperature range of the LTC2372-18?

    The operating temperature range is 0°C to 70°C (C grade), -40°C to 85°C (I grade), and -40°C to 125°C (H grade).

  8. What type of data interface does the LTC2372-18 use?

    The LTC2372-18 uses a high speed SPI-compatible serial interface.

  9. Does the LTC2372-18 have an internal reference?

    Yes, the LTC2372-18 has an onboard low drift (20ppm/°C max) 2.048V temperature-compensated reference.

  10. What is the package type of the LTC2372-18?

    The LTC2372-18 is packaged in a 32-WFQFN Exposed Pad.

Product Attributes

Number of Bits:18
Sampling Rate (Per Second):500k
Number of Inputs:8
Input Type:Differential, Pseudo-Differential
Data Interface:SPI
Configuration:MUX-S/H-ADC
Ratio - S/H:ADC:1:1
Number of A/D Converters:1
Architecture:SAR
Reference Type:Internal
Voltage - Supply, Analog:4.75V ~ 5.25V
Voltage - Supply, Digital:4.75V ~ 5.25V
Features:- 
Operating Temperature:0°C ~ 70°C
Package / Case:32-WFQFN Exposed Pad
Supplier Device Package:32-QFN (5x5)
Mounting Type:Surface Mount
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Similar Products

Part Number LTC2372CUH-18 LTC2372HUH-18 LTC2372IUH-18 LTC2373CUH-18 LTC2372CUH-16
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Obsolete Obsolete Obsolete Obsolete
Number of Bits 18 18 18 18 16
Sampling Rate (Per Second) 500k 500k 500k 1M 500k
Number of Inputs 8 8 8 8 8
Input Type Differential, Pseudo-Differential Differential, Pseudo-Differential Differential, Pseudo-Differential Differential, Pseudo-Differential Differential, Pseudo-Differential
Data Interface SPI SPI SPI SPI SPI
Configuration MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC MUX-S/H-ADC
Ratio - S/H:ADC 1:1 1:1 1:1 1:1 1:1
Number of A/D Converters 1 1 1 1 1
Architecture SAR SAR SAR SAR SAR
Reference Type Internal Internal Internal External, Internal External, Internal
Voltage - Supply, Analog 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V
Voltage - Supply, Digital 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V 4.75V ~ 5.25V
Features - - - - -
Operating Temperature 0°C ~ 70°C -40°C ~ 125°C -40°C ~ 85°C 0°C ~ 70°C 0°C ~ 70°C
Package / Case 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad 32-WFQFN Exposed Pad
Supplier Device Package 32-QFN (5x5) 32-QFN (5x5) 32-QFN (5x5) 32-QFN (5x5) 32-QFN (5x5)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount

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