LTC1298CS8 Linear Technology, LTC1298CS8 Datasheet - Page 7

• Manufacturer Part Number: LTC1298CS8
• Description: IC A/D CONV SAMPLING 12BIT 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1298CS8

• Number Of Bits: 12
• Sampling Rate (per Second): 11.1k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 1.8mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFORMANCE CHARACTERISTICS
PIN
LTC1286
V
the span of the A/D converter.
IN
IN
GND (Pin 4): Analog Ground. GND should be tied directly
to an analog ground plane.
CS/SHDN (Pin 5): Chip Select Input. A logic low on this
input enables the LTC1286. A logic high on this input
disables and powers down the LTC1286.
D
result is shifted out of this output.
CLK (Pin 7): Shift Clock. This clock synchronizes the serial
data transfer and determines conversion speed.
V
power to the A/D converter. It must be kept free of noise
and ripple by bypassing directly to the analog ground
plane.
REF
CC
OUT
200
150
100
+
–
50
U
0
(Pin 2): Positive Analog Input.
–55
(Pin 3): Negative Analog Input.
(Pin 8): Power Supply Voltage. This pin provides
(Pin 1): Reference Input. The reference input defines
Minimum Clock Frequency
for 0.1 LSB Error vs Temperature
(Pin 6): Digital Data Output. The A/D conversion
V
FUNCTIONS
CC
–35 –15
= V
U
REF
= 5V
TEMPERATURE (°C)
5
25
U
45
W
LT1286/98 • G14
65
85
U
1
3
2
Digital Input Logic Threshold
vs Supply Voltage
3
T
A
= 25°C
4
SUPPLY VOLTAGE (V)
5
6
LTC1298
CS/SHDN (Pin 1): Chip Select Input. A logic low on this
input enables the LTC1298. A logic high on this input
disables and powers down the LTC1298.
CH0 (Pin 2): Analog Input.
CH1 (Pin 3): Analog Input.
GND (Pin 4): Analog Ground. GND should be tied directly
to an analog ground plane.
D
shifted into this input.
D
result is shifted out of this output.
CLK (Pin 7): Shift Clock. This clock synchronizes the
serial data transfer and determines conversion speed.
V
This pin provides power and defines the span of the A/D
converter. It must be kept free of noise and ripple by
bypassing directly to the analog ground plane.
IN
OUT
CC
(Pin 5): Digital Data Input. The multiplexer address is
/V
7
(Pin 6): Digital Data Output. The A/D conversion
REF
LTC 1286/98 G17
8
(Pin 8): Power Supply and Reference Voltage.
9
1000
0.01
100
0.1
LTC1286/LTC1298
10
1
– 60
Input Channel Leakage Current
vs Temperature
V
V
–40
CC
REF
= 5V
–20
= 5V
0
TEMPERATURE (°C)
ON CHANNEL
20
40
OFF CHANNEL
60
80
100
1196/98 G19
7
120
140