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QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339
DESCRIPTION
Demonstration circuit 1339 features the LTC2302
low noise, 500ksps, 12-Bit, ADC. The LTC2302 has
an SPI compatible serial interface that can be used
to select channel polarity and unipolar or bipolar
settings. DC1339A demonstrates the DC and AC
performance of the LTC2302 in conjunction with the
DC590B QuikEval and DC890B Fast DAACS data
collection boards. Alternatively, by connecting the
DC1339A
performance of the LTC2302 can be evaluated
directly in that circuit.
Design files for this circuit board are available. Call
the LTC factory.
LTC is a trademark of Linear Technology Corporation
Figure 1. DC1339A Connection Diagram
LOW NOISE, 500KSPS, 12-BIT ADC
into
a
customer
LTC2302
application,
the
1
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Summary of Contents for Linear Technology DC1339
- Page 1 DC1339A demonstrates the DC and AC the LTC factory. performance of the LTC2302 in conjunction with the DC590B QuikEval and DC890B Fast DAACS data LTC is a trademark of Linear Technology Corporation collection boards. Alternatively, by connecting the Figure 1. DC1339A Connection Diagram...
- Page 2 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339 LOW NOISE, 500KSPS, 12-BIT ADC DC890B QUICK START PROCEDURE Connect DC1339A to a DC890B USB High Speed termination resistor to ground, which will prevent Data Collection Board using connector J2. Connect most logic from driving this pin directly. Run the Fast DC890B to a host PC with a standard USB A/B cable.
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Page 3: Hardware Setup
ADC directly. See schematic for details. GROUNDING AND POWER CONNECTION Connect a 6V to 9V power supply to the 6-9VDC and GND posts when using DC890B. If the DC590B is used it will provide power to the DC1339. - Page 4 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339 LOW NOISE, 500KSPS, 12-BIT ADC Figure 4. DC1339A Pscope Screenshot...
- Page 5 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339 LOW NOISE, 500KSPS, 12-BIT ADC Figure 5. DC1339A QuikEval Screen Shot...
- Page 6 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339 LOW NOISE, 500KSPS, 12-BIT ADC OVDD OVDD 10uF 6.3V SDO_AT_BUF 0.1uF 0.1uF 2.5V LTC2302CDD NC7SVU04P5X SN74AHCT1G04DCKT 0.1uF 0.1uF CONVST 0V - 4.096V SDO_AT_590 49.9 3.01K (Opt) EXPOSED 47pF 47pF 0.1uF VREF VREF/2 10uF 4.99K 6.3V 4.99K...
- Page 7 QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1339 LOW NOISE, 500KSPS, 12-BIT ADC 2.5V 2.5V CONV 0.1uF 0.1uF NC7SVU04P5X NC7SZ04P5X_NL CONV 0.1uF 49.9 SDO_AT_BUF 0.1uF 0.1uF NC7SZ66P5X CNVCLK NL17SZ74USG CLK_IN 0.1uF LT1719CS6 1.25V MISO MISO MOSI MOSI 0.1uF SHDN LATCH LATCH 0.1uF LT1719CS6 CNVST...
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