LTC1414IGN データシートの表示（PDF） - Linear Technology
部品番号
コンポーネント説明
メーカー
LTC1414IGN Datasheet PDF : 20 Pages
| |||
LTC1414
TYPICAL PERFOR A CE CHARACTERISTICS
Spurious-Free Dynamic Range vs
Input Frequency
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
10k
100k
1M
INPUT FREQUENCY (Hz)
10M
1414 G04
Intermodulation Distortion Plot
0
fSAMPLE = 2.2MHz
–20
fIN1 = 80.566kHz
fIN2 = 97.753kHz
–40
–60
–80
–100
–120
0
200 400 600 800
FREQUENCY (kHz)
1000
1414 F05a
Differential Nonlinearity vs
Output Code
2.0
1.0
0
–1.0
–2.0
0
4096
8192 12288
OUTPUT CODE
16384
1414 G06
Integral Nonlinearity vs Output
Code
2.0
1.0
0
–1.0
–2.0
0
4096
8192 12288
OUTPUT CODE
16384
1414 G07
Power Supply Feedthrough vs
Ripple Frequency
0
VSS (VRIPPLE = 0.02V)
–20
VDD (VRIPPLE = 0.2V)
OGND (VRIPPLE = 0.5V)
OVDD (VRIPPLE = 0.5V)
–40
–60
–80
–100
–120
0
2M 4M 6M 8M 10M
RIPPLE FREQUENCY (Hz)
1414 G08
Input Common Mode Rejection vs
Input Frequency
80
70
60
50
40
30
20
10
0
1k
10k
100k
1M
10M
INPUT FREQUENCY (Hz)
LTC1414 • F12
PIN FUNCTIONS
A IN+ (Pin 1): Positive Analog Input. ±2.5V input range
when AIN– is grounded. ±2.5V differential if AIN– is driven
differentially with AIN+.
AIN– (Pin 2): Negative Analog Input. Can be grounded or
driven differentially with AIN+.
VREF (Pin 3): 2.5V Reference Output.
REFCOMP (Pin 4): 4.06V Reference Bypass Pin.
Bypass to AGND with 10µF ceramic or 10µF tantalum in
parallel with 0.1µF ceramic.
AGND (Pin 5): Analog Ground.
D13 to D6 (Pins 6 to 13): Data Outputs.
OGND (Pin 14): Digital Ground for the Output Drivers. Tie
to AGND
D5 to D0 (Pins 15 to 20): Data Outputs.
OVDD (Pin 21): Positive Supply for the Output Drivers. Tie
to Pin 28 when driving 5V logic. For 3V logic, tie to supply
of the logic being driven.
DVDD (Pin 22): 5V Positive Supply. Tie to Pin 28.
DGND (Pin 23): Digital Ground. Tie to AGND.
CONVST (Pin 24): Conversion Start Signal. This active low
signal starts a conversion on its falling edge.
5
Share Link: 