LTC1278-4CSW Linear Technology, LTC1278-4CSW Datasheet - Page 6

• Manufacturer Part Number: LTC1278-4CSW
• Description: IC A/DCONV SAMPLNG W/SHTDN24SOIC
• Manufacturer: Linear Technology

Specifications of LTC1278-4CSW

• Number Of Bits: 12
• Sampling Rate (per Second): 400k
• Data Interface: Parallel
• Number Of Converters: 1
• Power Dissipation (max): 150mW
• Voltage Supply Source: Dual ±
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (0.300", 7.50mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: LTC1278-4CS

LTC1278
6
TYPICAL PERFORMANCE CHARACTERISTICS
–100
–10
–70
–80
–90
–20
–30
–40
–50
–60
80
70
60
50
40
30
20
10
20
15
10
0
0
5
0
10k
–55
1k
S/(N D) vs Input Frequency
and Amplitude
Spurious Free Dynamic Range vs
Input Frequency
Supply Current vs Temperature
f
SAMPLE
f
SAMPLE
–25
= 500kHz
10k
= 500kHz
INPUT FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
V
V
V
0
TEMPERATURE (C°)
IN
IN
IN
= –20dB
= 0dB
= –60dB
100k
25
100k
50
f
SAMPLE
75
1M
W
= 500kHz
LTLTC1278 G11
100
1M
LTC1278 G10
LTC1278 G3
U
10M
2M
125
–100
–120
–100
–120
–20
–40
–60
–80
–20
–40
–60
–80
80
70
60
50
40
30
20
10
0
0
0
1k
1k
0
Signal-to-Noise Ratio (without
Harmonics) vs Input Frequency
Intermodulation Distortion Plot
Power Supply Feedthrough
vs Ripple Frequency
f
f
DGND (V
SAMPLE
SAMPLE
50k
= 500kHz
= 500kHz
10k
RIPPLE
RIPPLE FREQUENCY (Hz)
INPUT FREQUENCY (Hz)
10k
FREQUENCY (Hz)
V
100k
SS
= 0.1V)
(V
100k
RIPPLE
AV
DD
150k
f
f
f
SAMPLE
IN1
IN2
(V
100k
= 10mV)
RIPPLE
= 96.80kHz
= 101.68kHz
1M
200k
= 500kHz
= 1mV)
LTC1278 G7
LTC1278 G8
LTC1278 G5
250k
10M
1M
2.435
2.430
2.425
2.420
2.415
2.410
2.405
–100
4500
4000
3500
3000
2500
2000
1500
1000
–20
–70
–80
–90
–10
–30
–40
–50
–60
500
0
0
10k
10
– 5
Acquisition Time vs
Source Impedance
Distortion vs Input Frequency
Reference Voltage vs Load Current
f
SAMPLE
– 4
THD
2ND HARMONIC
= 500kHz
INPUT FREQUENCY (Hz)
–3
LOAD CURRENT (mA)
100
R
100k
SOURCE
–2
–1
( )
3RD HARMONIC
1k
0
LTC1278 G9
LTC1278 G12
1M
LT1278 G6
1
10k
2M
2