LTC1290BCSW#TRPBF Linear Technology, LTC1290BCSW#TRPBF Datasheet - Page 26

• Manufacturer Part Number: LTC1290BCSW#TRPBF
• Description: IC DATA ACQ SYS 12BIT 20-SOIC
• Manufacturer: Linear Technology
• Type: Data Acquisition System (DAS), ADCr

Specifications of LTC1290BCSW#TRPBF

• Resolution (bits): 12 b
• Sampling Rate (per Second): 50k
• Data Interface: Serial, Parallel
• Voltage Supply Source: Dual ±
• Voltage - Supply: ±5V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 20-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LTC1290
A “Quick Look” Circuit for the LTC1290
Users can get a quick look at the function and timing of the
LTC1290 by using the following simple circuit. REF
D
single-ended input, unipolar mode, MSB-first format and
16-bit word length. ACLK and SCLK are tied together and
driven by an external clock. CS is driven at 1/128 the clock
rate by the CD4520 and D
pins are tied to a ground plane. The output data from the
D
to trigger on the falling edge of CS.
26
TYPICAL
IN
OUT
are tied to V
pin can be viewed on an oscilloscope which is set up
A
PPLICATI
CC
selecting a 5V input span, CH7 as a
OUT
outputs the data. All other
O
U
ACLK/
SCLK
D
S
CS
OUT
Scope Trace of LTC1290 “Quick Look” Circuit
Showing A/D Output of 010101010101 (555
DEGLITCHER
TIME
+
and
VERTICAL: 5V/DIV
HORIZONTAL: 1µs/DIV
(B11)
MSB
V
IN
22µF
LSB
(B0)
CHO
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
DGND
LTC1290
A “Quick Look” Circuit for the LTC1290
AGND
ACLK
SCLK
D
REF
REF
V
OUT
D
ZEROS
HEX
CS
V
FILLS
CC
IN
+
–
–
)
OSCILLOSCOPE
TO
f
f/128
CLOCK IN
2MHz MAX
CLK
EN
Q1
Q2
Q3
Q4
RESET
V
SS
CD4520
RESET
V
CLK
DD
Q4
Q3
Q2
Q1
EN
5V
0.1µF
1290fe
1290 TA02