LTC1196/LTC1198
TYPICAL PERFOR A CE CHARACTERISTICS
Gain vs Supply Voltage
0.5
MAXIMUM CLOCK FREQUENCY (MHz)
MAGNITUDE OF GAIN ERROR (LSB)
0.4
0.3
0.2
0.1
0
–0.1
–0.2
–0.3
–0.4
–0.5
2.5
15
13
11
9
7
5
2.5
CLOCK FREQUENCY (MHz)
T
A
= 25°C
f
CLK
= 3MHz
V
REF
= V
CC
3.0
3.5 4.0 4.5
5.0
SUPPLY VOLTAGE (V)
Minimum Clock Rate for
0.1LSB* Error
100
MINIMUM CLOCK FREQUENCY (kHz)
90
80
70
60
50
40
30
20
10
PEAK-TO-PEAK ADC NOISE (LSB)
V
CC
= 5V
V
REF
= 5V
0.25
0.20
0.15
0.10
0.05
0
2.5
S&H ACQUISITION TIME (ns)
0
–55 –35 –15
5 25 45 65 85 105 125
TEMPERATURE (°C)
1196/98 G13
Digital Input Logic Threshold vs
Supply Voltage
1.9
1.7
LOGIC THRESHOLD (V)
140
T
A
= 25°C
120
D
OUT
DELAY TIME, t
dDO
(ns)
100
80
60
40
20
0
2.5
D
OUT
DELAY TIME, t
dDO
(ns)
1.5
1.3
1.1
0.9
0.7
0.5
2.5
3.0
5.0
3.5 4.0 4.5
SUPPLY VOLTAGE (V)
*AS THE FREQUENCY IS DECREASED FROM 12MHz, MINIMUM CLOCK FREQUENCY (∆ERROR
≤
0.1LSB) REPRESENTS THE
FREQUENCY AT WHICH A 0.1LSB SHIFT IN ANY CODE TRANSITION FROM ITS 12MHz VALUE IS FIRST DETECTED.
8
U W
5.5
6.0
1196/98 G10
Maximum Clock Frequency vs
Supply Voltage
19
17
T
A
= 25°C
V
REF
= V
CC
18
16
14
12
10
8
6
4
2
0
Maximum Clock Frequency vs
Source Resistance
V
IN
+IN
–IN
R
SOURCE–
T
A
= 25°C
V
CC
= V
REF
= 5V
1
10
10k
1k
100
SOURCE RESISTANCE (Ω)
100k
3.0
3.5 4.0 4.5 5.0
SUPPLY VOLTAGE (V)
5.5
6.0
1196/98 G11
1196/98 G12
ADC Noise vs Reference and
Supply Voltage
0.35
0.30
T
A
= 25°C
V
REF
= V
CC
10000
Sample-and-Hold Acquisition
Time vs Source Resistance
T
A
= 25°C
V
CC
= V
REF
= 5V
R
SOURCE+
V
IN
+IN
–IN
1000
3.0
5.0
3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.5
6.0
100
1
100
10
1k
SOURCE RESISTANCE (Ω)
10k
1196/98 G15
1196/98 G14
D
OUT
Delay Time vs
Supply Voltage
160
D
OUT
Delay Time vs Temperature
T
A
= 25°C
V
REF
= V
CC
140
120
100
80
60
40
20
V
CC
= 5V
V
REF
= V
CC
V
CC
= 2.7V
5.5
6.0
3.0
5.0
3.5 4.0 4.5
SUPPLY VOLTAGE (V)
5.5
6.0
0
– 60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
1196/98 G18
1196/98 G16
1196/98 G17
LINER [ LINEAR TECHNOLOGY ]
