LTC1404CS8 Linear Technology, LTC1404CS8 Datasheet - Page 8

• Manufacturer Part Number: LTC1404CS8
• Description: IC A/D CONV 12BIT W/SHTDN 8-SOIC
• Manufacturer: Linear Technology

Specifications of LTC1404CS8

• Number Of Bits: 12
• Sampling Rate (per Second): 600k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 160mW
• Voltage Supply Source: Dual ±
• 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
V
tantalum in parallel with 0.1µF ceramic).
A
(Bipolar).
V
(10µF tantalum in parallel with 0.1µF ceramic).
GND (Pin 4): Ground. GND should be tied directly to an
analog ground plane.
D
this pin.
LTC1404
TYPICAL PERFORMANCE CHARACTERISTICS
8
CC
IN
REF
OUT
U
(Pin 2): Analog Input. 0V to 4.096V (Unipolar), ±2.048V
(Pin 1): Positive Supply, 5V. Bypass to GND (10µF
(Pin 5): The A/D conversion result is shifted out from
(Pin 3): 2.43V Reference Output. Bypass to GND
FUNCTIONS
U
20
15
10
5
0
–50
Unipolar Mode V
vs Temperature
f
SAMPLE
U
–25
= 600kHz
0
TEMPERATURE (°C)
W
25
CC
U
50
Supply Current
75
100
1404 G23
125
CLK (Pin 6): Clock. This clock synchronizes the serial data
transfer. A minimum CLK pulse of 40ns signals the ADC to
wake up from Nap or Sleep mode.
CONV (Pin 7): Conversion Start Signal. This active high
signal starts a conversion on its rising edge. Keeping CLK
low and pulsing CONV two/four times will put the ADC into
Nap/Sleep mode.
V
Bypass to GND with 10µF tantalum in parallel with 0.1µF
ceramic. V
SS
(Pin 8): Negative Supply. – 5V for bipolar operation.
15.0
12.5
10.0
7.5
5.0
2.5
0
–50
SS
Bipolar Mode Supply Current
vs Temperature
f
SAMPLE
should be tied to GND for unipolar operation.
–25
= 600kHz
0
TEMPERATURE (°C)
25
V
V
SS
50
CC
CURRENT
CURRENT
75
100
1404 G24
125
300
250
200
150
100
50
0
1404fa