LTC2369-18 Series

18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR

Catalog

18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR

Part	Package / Case	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Input Type	Data Interface	Number of A/D Converters	Operating Temperature [Max]	Operating Temperature [Min]	Mounting Type	Supplier Device Package	Ratio - S/H:ADC	Architecture	Configuration	Reference Type	Sampling Rate (Per Second)	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Number of Inputs
Analog Devices LTC2369CMS-18#TRPBF	16-TFSOP	2.375 V	2.625 V	Pseudo-Differential	SPI	1	70 °C	0 °C	Surface Mount	16-MSOP	1:1	SAR	S/H-ADC	External	1.6 M	2.625 V	2.375 V	1
Analog Devices LTC2369CMS-18#PBF	16-TFSOP	2.375 V	2.625 V	Pseudo-Differential	SPI	1	70 °C	0 °C	Surface Mount	16-MSOP	1:1	SAR	S/H-ADC	External	1.6 M	2.625 V	2.375 V	1
Analog Devices LTC2369CDE-18#TRPBF	16-WFDFN Exposed Pad	2.375 V	2.625 V	Pseudo-Differential	SPI	1	70 °C	0 °C	Surface Mount	16-DFN (4x3)	1:1	SAR	S/H-ADC	External	1.6 M	2.625 V	2.375 V	1
Analog Devices LTC2369HMS-18#PBF	16-TFSOP	2.375 V	2.625 V	Pseudo-Differential	SPI	1	125 °C	-40 °C	Surface Mount	16-MSOP	1:1	SAR	S/H-ADC	External	1.6 M	2.625 V	2.375 V	1

Catalog

18-Bit, 1.6Msps, Pseudo- Differential Unipolar SAR ADC with 96.5dB SNR

Key Features

• 1.6Msps Throughput Rate

• ±2.5LSB INL (Max)

• Guaranteed 18-Bit No Missing Codes

• Low Power: 18mW at 1.6Msps, 18μW at 1.6ksps

• 96.5dB SNR (Typ) at fIN= 2kHz

• –120dB THD (Typ) at fIN= 2kHz

• Guaranteed Operation to 125°C

• 2.5V Supply

• Pseudo-Differential Unipolar Input Range: 0V to VREF

• VREFInput Range from 2.5V to 5.1V

• No Pipeline Delay, No Cycle Latency

• 1.8V to 5V I/O Voltages

• SPI-Compatible Serial I/O with Daisy-Chain Mode

• Internal Conversion Clock

• 16-Lead MSOP and 4mm × 3mm DFN Packages

Description

The LTC2369-18 is a low noise, low power, high speed 18-bit successive approximation register (SAR) ADC. Operating from a 2.5V supply, the LTC2369-18 has a 0V to VREFpseudo-differential unipolar input range with VREFranging from 2.5V to 5.1V. The LTC2369-18 consumes only 18mW and achieves ±2.5LSB INL maximum, no missing codes at 18 bits with 96.5dB SNR.The LTC2369-18 has a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V and 5V logic while also featuring a daisy-chain mode. The fast 1.6Msps throughput with no cycle latency makes the LTC2369-18 ideally suited for a wide variety of high speed applications. An internal oscillator sets the conversion time, easing external timing considerations. The LTC2369-18 automatically powers down between conversions, leading to reduced power dissipation that scales with the sampling rate.ApplicationsMedical ImagingHigh Speed Data AcquisitionPortable or Compact InstrumentationIndustrial Process ControlLow Power Battery-Operated InstrumentationATE