Linear Technology: DC1813A Demo Board for LTC23XX-XX Low Power, Low Noise ADCs

Kit Overview   The LTC2370LTC2370/LTC2369LTC2369/LTC2368LTC2368/LTC2367LTC2367/LTC2364LTC2364 are low power, low noise ADCs with serial outputs that can operate from a single 2.5V supply. The following text refers to the LTC2369-18LTC2369-18 but applies to all parts in the family, the only difference being the maximum sample rates and the number of bits. The LTC2369-18 supports a 0V to 5V pseudo-differential input range with a 96dB SNR, consumes only 18mW and achieves ±2LSB INL max with no missing codes at 18-bits.   The DC1813ADC1813A demonstrates the DC and AC performance of the LTC2369-18LTC2369-18 in conjunction with the DC590 QuikEval and DC718 QuikEval II data collection boards. Use the DC590 to demonstrate DC performance such as peak-to-peak noise and DC linearity. Use the DC718 if precise sampling rates are required or to demonstrate AC performance such as SNR, THD, SINAD and SFDR. The DC1813A 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 DC1813A-ADC1813A-A Demo Board for LTC2370-16LTC2370-16 with LTC6655-5LTC6655-5/LT6202LT6202: 16-Bit, 2Msps, Pseudo-Differential Unipolar SAR ADC with 94dB SNR. DC1813A-BDC1813A-B Demo Board for LTC2368-16LTC2368-16 with LTC6655-5LTC6655-5/LT6202LT6202: 16-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR. DC1813A-CDC1813A-C Demo Board for LTC2367-16 LTC2367-16 with LTC6655-5LTC6655-5/LT6202LT6202: 16-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR DC1813A-DDC1813A-D Demo Board for LTC2364-16LTC2364-16 with LTC6655-5LTC6655-5/LT6202LT6202: 16-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 94.7dB SNR DC1813A-EDC1813A-E Demo Board for LTC2369-18LTC2369-18 with LTC6655-5LTC6655-5/LT6202LT6202: 18-Bit, 1.6Msps, Pseudo-Differential Unipolar SAR ADC with 96.5dB SNR. DC1813A-FDC1813A-F Demo Board for LTC2368-18LTC2368-18 with LTC6655-5LTC6655-5/LT6202LT6202: 18-Bit, 1Msps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. DC1813A-GDC1813A-G Demo Board for LTC2367-18LTC2367-18 with LTC6655-5LTC6655-5/LT6202LT6202: 18-Bit, 500ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR DC1813A-HDC1813A-H Demo Board for LTC2364-18LTC2364-18 with LTC6655-5LTC6655-5/LT6202LT6202: 18-Bit, 250ksps, Pseudo-Differential Unipolar SAR ADC with 97dB SNR. Key Applications: Medical Imaging, High Speed Data Acquisition, Portable or Compact Instrumentation, Industrial Process Control, Low Power Battery-Operated 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 LT6202LT6202 are as below:

• Low Noise Voltage: 1.9nV/√Hz (100kHz)
• Low Supply Current: 3mA/Amp Max
• Gain Bandwidth Product: 100MHz
• Low Distortion: –80dB at 1MHz
• Low Offset Voltage: 500μV Max
• Wide Supply Range: 2.5V to 12.6V
• Input Common Mode Range Includes Both Rails
• Output Swings Rail-to-Rail
• Common Mode Rejection Ratio 90dB Typ
• Unity Gain Stable
• Low Noise Current: 1.1pA/√Hz
• Output Current: 30mA Min
• Operating Temperature Range –40°C to 85°C

Key Features for LTC6655LTC6655 are as below:

• Low Noise: 0.25ppmP-P (0.1Hz to 10Hz)
• 625nVP-P for the LTC6655-2.5
• Low Drift: 2ppm/°C Max
• High Accuracy: ±0.025% Max
• Fully Specified from –40°C to 125°C
• 100% Tested at –40°C, 25°C and 125°C
• Load Regulation: <10ppm/mA
• Sinks and Sources Current: ±5mA
• Low Dropout: 500mV
• Maximum Supply Voltage: 13.2V
• Low Power Shutdown: <20μA Max
• Available Output Voltages: 1.25V, 2.048V, 2.5V, 3V, 3.3V, 4.096V, 5V

Key Features for LTC23XX-XX area as below:

• Guaranteed Operation to 125°C
• 2.5V Supply
• Pseudo-Differential Unipolar Input Range: 0V to VREF
• VREF Input 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

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Kit Contents

1. The Linear Technology's DC1813A-ADC1813A-A Demo Board supplied with below contents:

• Demo Board for LTC2370-16LTC2370-16

2. The Linear Technology's DC1813A-BDC1813A-B Demo Board supplied with below contents:

• Demo Board for LTC2368-16LTC2368-16

3. The Linear Technology's DC1813A-CDC1813A-C Demo Board supplied with below contents:

• Demo Board for LTC2367-16 LTC2367-16

4. The Linear Technology's DC1813A-DDC1813A-D Demo Board supplied with below contents:

• Demo Board for LTC2364-16LTC2364-16

5. The Linear Technology's DC1813A-EDC1813A-E Demo Board supplied with below contents:

• Demo Board for LTC2369-18LTC2369-18

6. The Linear Technology's DC1813A-FDC1813A-F Demo Board supplied with below contents:

• Demo Board for LTC2368-18LTC2368-18

7. The Linear Technology's DC1813A-GDC1813A-G Demo Board supplied with below contents:

• Demo Board for LTC2367-18LTC2367-18

8.The Linear Technology's DC1813A-HDC1813A-H Demo Board supplied with below contents:

• Demo Board for LTC2364-18LTC2364-18

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