QUICK START GUIDE FOR DEMONSTRATION CIRCUIT 1067
EVALUATION BOARD
1
LTC2450
DESCRIPTION
Demonstration circuit 1067 features the LTC2450, a
16 bit high performance
ΔΣ
analog-to-digital con-
verter (ADC). The LTC2450 features 2LSB linearity,
2LSB offset, and 1.4µV RMS noise. The input is sin-
gle ended with a range of 0 (Ground) to Vcc. The
modulator’s proprietary sampling technique reduces
the average input current to less than 50nA – orders
of magnitude lower than typical delta sigma ADCs.
The LTC2450 is available in a 6 pin, 3x3mm DFN
package and has an easy to use SPI interface.
DC1067 is a member of Linear Technology‘s
QuickEval™ family of demonstration boards. It is de-
signed to allow easy evaluation of the LTC2450 and
may be connected directly to the target application’s
analog signals while using the DC590 USB Serial
Controller board and supplied software to measure
performance. The exposed ground planes allow
proper grounding to prototype circuitry. After evaluat-
ing with Linear Technology’s software, the digital sig-
nals can be connected to the end application’s proc-
essor / controller for development of the serial inter-
face.
Design files for this circuit board are available. Call
the LTC factory.
LTC is a trademark of Linear Technology Corporation
Figure 1.
Proper Measurement Equipment Setup
Ribbon cable
To DC590
Controller
Single-ended In-
put
Monitor reference / Vcc
or external reference
source (See Hardware
Set-up)
