LTC1867LACGN View Datasheet(PDF) - Linear Technology
Part Name
Description
MFG CO.
'LTC1867LACGN' PDF : 16 Pages View PDF
LTC1863L/LTC1867L
APPLICATIONS INFORMATION
CS/CONV
SCK
tACQ
NOT NEEDED FOR LTC1863
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
DON'T CARE
SDI
SDO
(LTC1863)
SDO
(LTC1867)
DON'T CARE
tCONV
Hi-Z
tCONV
Hi-Z
SD 0S S1 S0 COM UNI SLP
DON'T CARE
MSB = D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
MSB = D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
Figure 7. Example 2, CS/CONV Starts a Conversion With Short Active HIGH Pulse.
With CS/CONV Returning LOW Before the Conversion, the ADC Remains Powered Up
1863L7L F07
011...111
011...110
BIPOLAR
ZERO
000...001
000...000
111...111
111...110
100...001
100...000
–FS/2
FS = 2.5V
1LSB = FS/2n
1LSB (LTC1863L) = 610µV
1LSB (LTC1867L) = 38.1µV
–1 0V 1
LSB LSB
INPUT VOLTAGE (V)
FS/2 – 1LSB
1863L7L F08
Figure 8. LTC1863L/LTC1867L Bipolar Transfer
Characteristics (Two’s Complement)
111...111
111...110
100...001
100...000
011...111
011...110
UNIPOLAR
ZERO
000...001
000...000
FS = 2.5V
1LSB = FS/2n
1LSB (LTC1863L) = 610µV
1LSB (LTC1867L) = 38.1µV
0V
FS – 1LSB
INPUT VOLTAGE (V)
1863L7L F09
Figure 9. LTC1863L/LTC1867L Unipolar Transfer
Characteristics (Straight Binary)
14
For more information www.linear.com/LTC1863L
1863l7lfd
Share Link: 
