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LTC1594 Datasheet(PDF) 6 Page - Linear Technology

Part No. LTC1594
Description  4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters
Download  24 Pages
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Maker  LINER [Linear Technology]
Homepage  http://www.linear.com
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LTC1594 Datasheet(HTML) 6 Page - Linear Technology

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6
LTC1594/LTC1598
15948fb
TYPICAL PERFORMANCE CHARACTERISTICS
Intermodulation Distortion
FREQUENCY (kHz)
0
–60
–40
0
35
1594/98 G15
–80
–100
12
46
7
–120
–140
–20
TA = 25°C
VCC = VREF = 5V
f1 = 5kHz
f2 = 6kHz
fSMPL = 12.5kHz
Attenuation vs Input Frequency
4096 Point FFT Plot
FREQUENCY (kHz)
0
–60
–40
0
35
1594/98 G14
–80
–100
12
46
7
–120
–140
–20
TA = 25°C
VCC = VREF = 5V
fIN = 5kHz
fCLK = 320kHz
fSMPL = 12.5kHz
Power Supply Feedthrough
vs Ripple Frequency
Maximum Clock Frequency
vs Source Resistance
INPUT FREQUENCY (kHz)
110
100
80
90
60
70
40
50
20
30
100
1000
10000
1594/98 G13
0
10
TA = 25°C
VCC = VREF = 5V
fSMPL = 16.8kHz
RIPPLE FREQUENCY (kHz)
–50
0
1
100
1000
10000
1594/98 G16
–100
10
TA = 25°C
VCC = 5V (VRIPPLE = 20mV)
VREF = 5V
fCLK = 320kHz
SOURCE RESISTANCE (k
Ω)
0.1
0
60
120
180
240
360
110
1594/98 G17
300
+ INPUT
COM
RSOURCE
VIN
TA = 25°C
VCC = VREF = 5V
Sample-and-Hold Acquisition Time
vs Source Resistance
SOURCE RESISTANCE (
Ω)
10
100
1000
1594/98 G18
1
0.1
10000
100
1000
10000
TA = 25°C
VCC = VREF = 5V
+ INPUT
COM
RSOURCE
+
VIN
Input Channel Leakage Current
vs Temperature
TEMPERATURE (
°C)
–60
1000
100
10
1
0.1
0.01
100
1594/98 G20
–20
20
60
140
–40
0
40
80
120
VCC = 5V
VREF = 5V
ON CHANNEL
OFF CHANNEL
Minimum Clock Frequency for
0.1LSB Error vs Temperature
TEMPERATURE (
°C)
–55
160
240
25
45
65
85
1594/98 G19
80
0
–35
–15
5
320
VCC = VREF = 5V


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