LTC1197 Linear Technology, LTC1197 Datasheet - Page 9

• Manufacturer Part Number: LTC1197
• Description: 10-Bit/ 500ksps ADCs in MSOP with Auto Shutdown
• Manufacturer: Linear Technology

TYPICAL PERFOR
*As the CLK frequency is decreased from 2MHz, minimum CLK frequency ( error
represents the frequency at which a 0.1LSB shift in any code translation from its 2MHz value
is first detected.
1000
100
100
0.5
0.4
0.3
0.2
0.1
0.1
0.1
10
10
0
1
1
–55 – 30
– 55
100
Linearity vs Temperature
Acquisition Time
vs Source Resistance
Minimum Clock Frequency for
0.1LSB Error* vs Temperature
V
V
f
V
V
V
T
CLK
CC
REF
REF
CC
– 35 – 15 5
A
CC
V
= 25 C
IN
= 5V
= 5V
= 7.2MHz
= V
= 5V
= 5V
R
SOURCE
REF
SOURCE RESISTANCE ( )
– 5
TEMPERATURE ( C)
TEMPERATURE ( C)
= 5V
+
+ INPUT
COM
20
25
1000
45
45
65
70
W
85 105 125
95
1197/99 G25
A
1197/99 G19
1197/99 G22
U
120
10000
CE
C
HARA TERISTICS
– 1.0
– 0.1
– 0.2
– 0.3
– 0.4
– 0.5
– 0.6
– 0.7
– 0.8
– 0.9
11
10
0
5
4
2
1
0
9
8
7
6
5
4
3
2
1
0
–55 – 30
3
Digital Input Threshold
vs Supply Voltage
0
Maximum Clock Frequency
vs Supply Voltage
0
Offset vs Temperature
T
V
T
V
V
f
CLK
A
REF
A
CC
REF
1
= 25 C
= 25 C
= 5V
= 7.2MHz
= 2.5V
0.1LSB)
C
= 5V
2
2
– 5
SUPPLY VOLTAGE (V)
SUPPLY VOLTAGE (V)
TEMPERATURE ( C)
3
20
4
4
†
Maximum CLK frequency represents the clock frequency at which a 0.1LSB shift in the error
at any code transition from its 3.5MHz value is first detected.
5
45
6
6
70
7
8
8
95
1197/99 G20
1197/99 G26
1197/99 G23
9
120
10
10
10000
LTC1197/LTC1197L
LTC1199/LTC1199L
0.001
1000
– 1.0
– 1.2
– 1.4
– 0.2
– 0.4
– 0.6
– 0.8
0.01
100
100
0.1
10
0
–55 – 30
1
100
Input Channel Leakage Current
vs Temperature
0
Maximum Clock Frequency
vs Source Resistance
Gain Error vs Temperature
V
V
f
V
V
V
CLK
CC
REF
REF
CC
IN
= 5V
= 5V
= 7.2MHz
= 5V
= 5V
R
25
SOURCE
+ INPUT
– INPUT
SOURCE RESISTANCE ( )
– 5
TEMPERATURE ( C)
TEMPERATURE ( C)
–
ON CHANNEL
50
20
1000
45
75
V
T
REF
A
OFF CHANNEL
70
= 25 C
= V
100
†
CC
95
1197/99 G21
1197/99 G27
1197/99 G24
= 5V
9
120
10000
125