Datasheet

9
LTC1197/LTC1197L
LTC1199/LTC1199L
Linearity vs Temperature
TEMPERATURE (°C)
–55 –30
0
LINEARITY ERROR (LSBs)
0.2
0.5
–5 45 70
1197/99 G19
0.1
0.4
0.3
20 95 120
V
CC
= 5V
V
REF
= 5V
f
CLK
= 7.2MHz
Gain Error vs Temperature
TEMPERATURE (°C)
–55 –30
–1.0
–1.2
–1.4
GAIN ERROR (LSBs)
0
–5 45 70
1197/99 G21
–0.2
–0.4
–0.6
–0.8
20 95 120
V
CC
= 5V
V
REF
= 5V
f
CLK
= 7.2MHz
Offset vs Temperature
TEMPERATURE (°C)
–55 –30
–1.0
OFFSET VOLTAGE (LSBs)
0
–5 45 70
1197/99 G20
–0.2
–0.3
–0.4
–0.5
–0.6
–0.7
–0.8
–0.9
–0.1
20 95 120
V
CC
= 5V
V
REF
= 5V
f
CLK
= 7.2MHz
*As the CLK frequency is decreased from 2MHz, minimum CLK frequency (∆error ≤ 0.1LSB)
represents the frequency at which a 0.1LSB shift in any code translation from its 2MHz value
is first detected.
†
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.
Acquisition Time
vs Source Resistance
Maximum Clock Frequency
vs Supply Voltage
Maximum Clock Frequency
†
vs Source Resistance
SOURCE RESISTANCE (Ω)
100 1000
0.1
ACQUISITION TIME (µs)
1
10
100
10000
1197/99 G25
V
CC
= V
REF
= 5V
T
A
= 25°C
+INPUT
R
SOURCE
+
V
IN
COM
SUPPLY VOLTAGE (V)
0
MAXIMUM CLOCK FREQUENCY (MHz)
6
8
10
11
8
1197/99 G26
4
2
5
7
9
3
1
0
2
4
6
19
3
5
7
10
V
REF
= 2.5V
T
A
= 25°C
SOURCE RESISTANCE (Ω)
100
100
MAXIMUM CLOCK FREQUENCY (kHz)
1000
10000
1000 10000
1197/99 G27
V
REF
= V
CC
= 5V
T
A
= 25°C
+INPUT
R
SOURCE
–
V
IN
–INPUT
TEMPERATURE (°C)
–55
0.1
MINIMUM CLOCK FREQUENCY (kHz)
1
10
100
1000
–35 –15 5 25
1197/99 G22
45 65 85 105 125
V
REF
= 5V
V
CC
= 5V
Minimum Clock Frequency for
0.1LSB Error* vs Temperature
Digital Input Threshold
vs Supply Voltage
Input Channel Leakage Current
vs Temperature
SUPPLY VOLTAGE (V)
0
LOGIC THRESHOLD (V)
3
4
5
8
1197/99 G23
2
1
0
2
4
6
10
T
A
= 25°C
TEMPERATURE (°C)
0
LEAKAGE CURRENT (nA)
1
10
100
100
1197/99 G24
0.1
0.01
0.001
25
50
75
125
V
REF
= 5V
V
CC
= 5V
ON CHANNEL
OFF CHANNEL
TYPICAL PERFOR A CE CHARACTERISTICS
UW