LTC1392CS8 Linear Technology, LTC1392CS8 Datasheet - Page 5

• Manufacturer Part Number: LTC1392CS8
• Description: IC DATA ACQ SYSTEM 10BIT 8-SOIC
• Manufacturer: Linear Technology
• Type: Data Acquisition System (DAS)r

Specifications of LTC1392CS8

• Resolution (bits): 10 b
• Sampling Rate (per Second): 25k
• Data Interface: Serial
• Voltage Supply Source: Single Supply
• Voltage - Supply: 4.5 V ~ 6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

PIN
BLOCK
D
shifted into this input.
D
of this output.
CLK (Pin 3): Shift Clock. This clock synchronizes the serial
data.
CS (Pin 4): Chip Select Input. A logic low on this input
enables the LTC1392.
TYPICAL PERFORMANCE CHARACTERISTICS
IN
OUT
70
65
60
55
50
45
40
35
30
25
20
U
(Pin 1): Digital Input. The A/D configuration word is
0
Thermal Response in Stirred
Oil Bath
(Pin 2): Digital Output. The A/D result is shifted out
FUNCTIONS
TEMPERATURE
5
U
SENSOR
S8
DIAGRAM
10
N8
+V
–V
TIME (SEC)
IN
IN
15
6
7
U
D
V
GND
V
20
REF
IN
CC
W
V
W
CC
1
25
= 5V
1392 G07
+
–
+
–
+
–
REGISTER
U
INPUT
ANALOG
SHIFT
30
INPUT
MUX
C
70
65
60
55
50
45
40
35
30
25
20
SAMPLE
0
Thermal Response in Still Air
V
CC
8
50
S8
BANDGAP
GND
100
5
COMP
TIME (SEC)
N8
150
GND (Pin 5): Ground Pin. GND should be tied directly to
an analog ground plane.
+V
can be used as a single-ended input by grounding – V
– V
must be free from noise.
V
from noise and ripple by bypassing directly to the ground
plane.
V
V
V
CC
REF
REF
REF
IN
IN
200
(Pin8): Positive Supply. This supply must be kept free
= 2.42V
= 1V
= 0.5V
(Pin 6): Positive Analog Differential Input. The pin
(Pin 7): Negative Analog Differential Input. The input
CAPACITIVE DAC
V
CC
250
10-BIT
= 5V
1392 G08
300
1000
100
0.1
10
1
0.1
Supply Current vs Sample Rate
BITS
10
CS LOW BETWEEN SAMPLES
CS HIGH BETWEEN
1
AND TIMING
CONTROL
SAMPLE FREQUENCY (Hz)
SERIAL
10-BIT
PORT
SAR
10
SAMPLES
100
LTC1392 • BD
LTC1392
3
2
4
1k
V
f
T
CLK
D
CS
CLK
A
CC
OUT
= 25 C
= 5V
= 250kHz
10k
1392 G09
5
100k
IN
.