LTC1096IS8 Linear Technology, LTC1096IS8 Datasheet - Page 28

• Manufacturer Part Number: LTC1096IS8
• Description: IC A/D CONV 8BIT SRL IN/OUT8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1096IS8

• Number Of Bits: 8
• Sampling Rate (per Second): 33k
• Data Interface: Serial
• Number Of Converters: 1
• Power Dissipation (max): 600µW
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

LTC1096/LTC1096L
LTC1098/LTC1098L
Figure 15 shows a temperature measurement system.
The LTC1096 is connected directly to the low cost silicon
temperature sensor. The voltage applied to the V
adjusts the full scale of the A/D to the output range of the
sensor. The zero point of the converter is matched to the
zero output voltage of the sensor by the voltage on the
LTC1096’s negative input.
A “Quick Look” Circuit for the LTC1096
Users can get a quick look at the function and timing of
the LT1096 by using the following simple circuit (Figure
13). V
the – IN input is tied to the ground. CS is driven at 1/16
the clock rate by the 74C161 and D
The output data from the D
oscilloscope that is set up to trigger on the falling edge
of CS (Figure 14). Note the LSB data is partially clocked
out before CS goes high.
28
V
IN
REF
CS
CH0
CH1
GND
Figure 13. “Quick Look” Circuit for the LTC1096
LTC1096
is tied to V
4.7μF
D
V
CLK
+
V
OUT
REF
CC
CC
5V
TO OSCILLOSCOPE
. V
IN
is applied to the +IN input and
OUT
pin can be viewed on an
CLOCK IN 150kHz MAX
OUT
CLR
CLK
A
B
C
D
P
GND
74C161
outputs the data.
LOAD
V
QD
CC
RC
QA
QB
QC
T
REF
10968 F13
pin
5V
678Ω
D
Figure 14. Scope Trace the LTC1096 “Quick Look” Circuit
Showing A/D Output 10101010 (AA
Figure 15. The LTC1096’s High Impedance Input Connects
Directly to This Temperature Sensor, Eliminating Signal
Conditioning Circuitry in This 0°C to 70°C Thermometer
CLK
OUT
CS
13.5k
LM134
0.01μF
NULL
BIT
75k
LT1004-1.2
182k
MSB
(B7)
VERTICAL: 5V/DIV
HORIZONTAL: 10μs/DIV
0.01μF
(B0)
LSB
63.4k
HEX
+IN
–IN
V
REF
)
LTC1096
LSB DATA
GND
V
3V
(B1)
CC
D
CLK
OUT
CS
10968 F14
10968 F15
TO μP
10968fc
0.1μF