Linear Technology: DC1826A Demo Board for LTC2389 18-Bit/16-Bit, 2.5Msps Low Noise, SAR ADCs with Pin-Configurable Analog Input Range

Kit Overview   The Linear Technology Demonstration circuit 1826A (DC1826ADC1826A) features the LTC2389 low noise, high speed successive approximation register ADC which operates from a single 5V supply. The following text refers to the LTC2389-18, but also applies to the LTC2389-16, the only difference being the number of bits. The LTC2389-18 supports pin-configurable fully differential (±4.096V), pseudo-differential unipolar (0V to 4.096V), and pseudo-differential bipolar (±2.048V) analog input ranges, allowing it to interface with multiple signal chain formats. The LTC2389-18 achieves ±2.5LSB INL (maximum), with no missing codes at 18 bits.   The DC1826ADC1826A demonstrates the performance of the LTC2389-18 in conjunction with the DC718 QuikEval II data collection board. The demonstration circuit 1826A is intended to demonstrate recommended grounding, component placement and selection, routing and bypassing for this ADC. Several suggested driver circuits for the analog inputs will be presented   Ordering Information: MPN Description DC1826A-ADC1826A-A Demonstration circuit 1826A for LTC2389-18 (18-Bit, 2.5Msps SAR ADC) DC1826A-EDC1826A-E Demonstration circuit 1826A for LTC2389-16 (16-Bit, 2.5Msps SAR ADC)   Key Applications: Medical Imaging, High Speed, Wide Dynamic Range Data Acquisition, Industrial Process Control, Instrumentation, ATE

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Linear Technology: DC1826A Demo Board for LTC2389 18-Bit/16-Bit, 2.5Msps Low Noise, SAR ADCs with Pin-Configurable Analog Input Range Linear Technology: DC1398A-GA Demo Board For LTM9001 16-bit High Performance ADC Drivers Linear Technology: DC890B High Speed (up to 250Mbps, CMOS/LVDS) USB Data Collection Board Linear Technology: DC1813A Demo Board for LTC23XX-XX Low Power, Low Noise ADCs

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Kit Features

Key Features for LTC2389-16 - 16-Bit, 2.5Msps SAR ADC are as below:

• 2.5Msps Throughput Rate
• ±1LSB INL (Max)
• Guaranteed 16-Bit, No Missing Codes
• Pin-Configurable Analog Input Range:
• ±4.096V Fully Differential
• 0V to 4.096V Pseudo-Differential Unipolar
• ±2.048V Pseudo-Differential Bipolar
• 96.0dB (Fully Differential)/93.5dB (Pseudo Differential) SNR (Typ) at fIN = 2kHz
• –116dB (Fully Differential)/–112dB (Pseudo Differential) THD (Typ) at fIN = 2kHz
• Guaranteed Operation to 125°C
• Single 5V Supply
• Internal 20ppm/°C (Max) Reference
• Internal Reference Buffer
• 162.5mW Power Dissipation at 2.5Msps
• No Pipeline Delay, No Cycle Latency
• 1.8V to 5V I/O Voltages
• Parallel and Serial I/O Interface

Key Features for LTC2389-18 - 18-Bit, 2.5Msps SAR ADC  are as below:

• 2.5Msps Throughput Rate
• ±3LSB INL (Max)
• Guaranteed 18-Bit, No Missing Codes
• Pin-Configurable Analog Input Range:
• ±4.096V Fully Differential
• 0V to 4.096V Pseudo-Differential Unipolar
• ±2.048V Pseudo-Differential Bipolar
• 99.8dB (Fully Differential)/95.2dB (Pseudo Differential) SNR (Typ) at fIN = 2kHz
• –116dB (Fully Differential)/–112dB (Pseudo Differential) THD (Typ) at fIN = 2kHz
• Guaranteed Operation to 125°C
• Single 5V Supply
• Internal 20ppm/°C (Max) Reference
• Internal Reference Buffer
• 162.5mW Power Dissipation at 2.5Msps
• No Pipeline Delay, No Cycle Latency
• 1.8V to 5V I/O Voltages
• Parallel and Serial I/O Interface

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Kit Contents

1. The Linear Technology DC1826A-ADC1826A-A Demo Board supplied with below contents:

• Demo Board for LTC2389-18

2. The Linear Technology DC1826A-EDC1826A-E Demo Board supplied with below contents:

• Demo Board for LTC2389-16

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