Linear DC951A Demo Manual

Description
Demonstration circuit 951A features the LTC2481, a 16-Bit
high performance Δ∑ analog-to-digital converter (ADC).
The LTC2481 features 2ppm linearity, 25ppm full-scale
accuracy, 2.5μV offset, and 600nV
is fully differential, with input common mode rejection of
140dB. The LTC2481 is available in a 10-pin DFN package
2
and has an easy to use I
DC951A is a member of Linear Technology's QuikEval™
family of demonstration boards. It is designed to allow easy
evaluation of the LTC2481 and may be connected directly
to the target application's analog signals while using the
Monitor reference or Monitor reference or
external reference external reference
source (See Hardware source (See Hardware
Set-Up) Set-up)
Differential Differential
Input Input
noise. The input
RMS
C interface.
Figure 1. Proper Measurement Equipment Setup
DEMO MANUAL DC951A
16-Bit ∆Σ ADC with Easy Drive
Input Current Cancellation
and I
DC590 USB Serial Controller board and supplied software
to measure performance. The exposed ground planes allow
proper grounding to prototype circuitry. After evaluating
with Linear Technology's software, the digital signals can
be connected to the end application's processor/controller
for development of the serial interface.
Design files for this circuit board are available at
http://www.linear.com/demo
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
QuikEval is a trademark of Linear Technology Corporation. All other trademarks are the property
of their respective owners.
LTC2481
2
C Interface
Ribbon Ribbon
Cable To cable To
DC590 DC590
Controller Controller
dc951af
1