LTC1288IS8 Linear Technology, LTC1288IS8 Datasheet - Page 7

• Manufacturer Part Number: LTC1288IS8
• Description: IC A/D CONV SAMPLING 12BIT 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1288IS8

• Number Of Bits: 12
• Sampling Rate (per Second): 6.6k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 630µW
• 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

PIN
TYPICAL PERFORMANCE CHARACTERISTICS
LTC1285
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 LTC1285. A logic high on this input
disables and powers down the LTC1285.
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
OUT
CC
120
100
+
–
80
60
40
U
20
2
0
(Pin 2): Positive Analog Input.
(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
0
(Pin 6): Digital Data Output. The A/D conversion
V
V
FUNCTIONS
CC
REF
10
= 2.7V
= 2.5V
U
20
TEMPERATURE (°C)
30
40
U
50
LTC1285/88 • TPC22
W
60
70
U
3.0
2.5
1.0
2.0
1.5
0.5
0
2.5
Digital Input Logic Threshold
vs Supply Voltage
T
A
3.0
= 25°C
3.5
SUPPLY VOLTAGE (V)
4.0
LTC1288
CS/SHDN (Pin 1): Chip Select Input. A logic low on this
input enables the LTC1288. A logic high on this input
disables and powers down the LTC1288.
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.
4.5
CC
IN
OUT
(Pin 5): Digital Data Input. The multiplexer address is
/V
5.0
(Pin 6): Digital Data Output. The A/D conversion
REF
LTC1285/88 • TPC23
5.5
(Pin 8): Power Supply and Reference Voltage.
6.0
1000
0.01
100
0.1
10
LTC1285/LTC1288
1
–55
Input Channel Leakage Current
vs Temperature
V
V
CC
REF
–35
= 2.7V
= 2.5V
–15
ON CHANNEL
TEMPERATURE (°C)
5
25
45
OFF CHANNEL
65
85
LTC1285/88 • TPC24
105
7
125