LTC2415-1CGN Linear Technology, LTC2415-1CGN Datasheet - Page 17

• Manufacturer Part Number: LTC2415-1CGN
• Description: IC ADC 24BIT DIFFINPUT/REF16SSOP
• Manufacturer: Linear Technology

Specifications of LTC2415-1CGN

• Number Of Bits: 24
• Sampling Rate (per Second): 13.75
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 1mW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 16-SSOP (0.150", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

APPLICATIO S I FOR ATIO
state and the converter is in the Internal SCK mode, the
serial clock duty cycle may be affected but the serial data
stream will remain valid.
Table 3b summarizes the duration of each state and the
achievable output data rate as a function of F
Figure 7a. LTC2415/LTC2415-1 Normal Mode
Rejection When Using an External Oscillator
of Frequency f
Table 3a. LTC2415 State Duration
State
CONVERT
SLEEP
DATA OUTPUT
Table 3b. LTC2415-1 State Duration
State
CONVERT
SLEEP
DATA OUTPUT
INPUT FREQUENCY DEVIATION FROM NOTCH FREQUENCY (%)
–100
–110
–120
–130
–140
–60
–70
–80
–90
–12
–8
EOSC
Operating Mode
Internal Oscillator
External Oscillator
Internal Serial Clock F
External Serial Clock with Frequency f
Operating Mode
Internal Oscillator
External Oscillator
Internal Serial Clock F
External Serial Clock with Frequency f
–4
without Running Averages
U
0
4
U
8
2415 F07a
F
F
F
f
F
Frequency f
F
Simultaneous 50Hz/60Hz Rejection
F
f
F
Frequency f
EOSC
EOSC
O
O
O
O
O
O
O
O
O
12
= LOW, (60Hz Rejection)
= HIGH, (50Hz Rejection)
= External Oscillator with Frequency 10278/f
= LOW/HIGH, (Internal Oscillator)
= External Oscillator with
= LOW
= External Oscillator with Frequency 10278/f
= LOW (Internal Oscillator)
= External Oscillator with
kHz (f
kHz (f
W
EOSC
EOSC
EOSC
EOSC
SCK
SCK
/2560 Rejection)
/2560 Rejection)
kHz
kHz
kHz
kHz
O
Figure 7b. LTC2415-1 Normal Mode
Rejection When Using an Internal
Oscillator with Running Averages
–100
–100
–120
–130
–140
.
–80
–90
U
48
DIFFERENTIAL INPUT SIGNAL FREQUENCY (Hz)
50
52
54
Serial Interface Pins
The LTC2415/LTC2415-1 transmit the conversion results
and receive the start of conversion command through a
synchronous 3-wire interface. During the conversion and
sleep states, this interface can be used to assess the
converter status and during the data output state it is used
to read the conversion result.
Duration
66.6ms, Output Data Rate 15 Readings/s
80ms, Output Data Rate 12.4 Readings/s
As Long As CS = HIGH Until CS = LOW and SCK
As Long As CS = LOW But Not Longer Than 1.67ms (32 SCK cycles)
As Long As CS = LOW But Not Longer Than 256/f
As Long As CS = LOW But Not Longer Than 32/f
Duration
72.8ms, Output Data Rate 14 Readings/s
As Long As CS = HIGH Until CS = LOW and SCK
As Long As CS = LOW But Not Longer Than 1.83ms (32 SCK cycles)
As Long As CS = LOW But Not Longer Than 256/f
As Long As CS = LOW But Not Longer Than 32/f
56
58
EOSC
EOSC
60
2415 F07b
s, Output Data Rate f
s, Output Data Rate f
62
LTC2415/LTC2415-1
–100
–105
–110
–115
–120
–125
–130
–135
–140
Figure 7c. LTC2415/LTC2415-1
Normal Mode Rejection When Using
an External Oscillator of Frequency
f
–80
–85
–90
–95
EOSC
DEVIATION FROM NOTCH FREQUENCY f
–12
EOSC
EOSC
DIFFERENTIAL INPUT SIGNAL FREQUENCY
with Running Averages
/10278 Readings/s
/10278 Readings/s
–8
–4
SCK
SCK
EOSC
EOSC
0
ms (32 SCK cycles)
ms (32 SCK cycles)
ms (32 SCK cycles)
ms (32 SCK cycles)
4
EOSC
8
sn2415 24151fs
2415 F07c
/2560(%)
17
12