Datasheet

LTC1196/LTC1198
9
119698fb
TYPICAL PERFORMANCE CHARACTERISTICS
Differential Nonlinearity
vs Code at 2.7V
Effective Bits and S/(N + D)
vs Input Frequency
Digital Input Logic Threshold
vs Supply Voltage
D
OUT
Delay Time
vs Supply Voltage
D
OUT
Delay Time vs Temperature
Input Channel Leakage Current
vs Temperature
Integral Nonlinearity
vs Code at 5V
Differential Nonlinearity
vs Code at 5V
SUPPLY VOLTAGE (V)
2.5
1.9
1.7
1.5
1.3
1.1
0.9
0.7
0.5
4.0 5.0
1196/98 G16
3.0 3.5
4.5 5.5 6.0
LOGIC THRESHOLD (V)
T
A
= 25°C
SUPPLY VOLTAGE (V)
2.5
140
120
100
80
60
40
20
0
4.0 5.0
1196/98 G17
3.0 3.5
4.5 5.5 6.0
D
OUT
DELAY TIME, t
dDO
(ns)
T
A
= 25°C
V
REF
= V
CC
TEMPERATURE (°C)
–60
D
OUT
DELAY TIME, t
dDO
(ns)
160
140
120
100
80
60
40
20
0
100
1196/98 G18
–20
20
60
140
–40
0
40 80
120
V
CC
= 5V
V
REF
= V
CC
V
CC
= 2.7V
Integral Nonlinearity
vs Code at 2.7V
TEMPERATURE (°C)
–60
LEAKAGE CURRENT (nA)
1000
100
10
1
0.1
0.01
100
1196/98 G19
–20
20
60
140
–40
0
40 80
120
V
CC
= 5V
V
REF
= 5V
ON CHANNEL
OFF CHANNEL
CODE
0
INTEGRAL NONLINEARITY ERROR (LSB)
0.5
64
128
160
1196/98 G20
32 96
192
224
256
0
–0.5
V
CC
= 5V
V
REF
= 5V
f
CLK
= 12MHz
CODE
0
DIFFERENTIAL NONLINEARITY ERROR (LSB)
0.5
64
128
160
1196/98 G21
32 96
192
224
256
0
–0.5
V
CC
= 5V
V
REF
= 5V
f
CLK
= 12MHz
CODE
0
INTEGRAL NONLINEARITY ERROR (LSB)
0.5
64
128
160
1196/98 G22
32 96
192
224
256
0
–0.5
V
CC
= 2.7V
V
REF
= 2.5V
f
CLK
= 3MHz
CODE
0
DIFFERENTIAL NONLINEARITY ERROR (LSB)
0.5
64
128
160
1196/98 G23
32 96
192
224
256
0
–0.5
V
CC
= 2.7V
V
REF
= 2.5V
f
CLK
= 3MHz
INPUT FREQUENCY (Hz)
1k
S/(N + D) (dB)
8
7
6
5
4
3
2
1
0
10k 100k 1M
1196/98 G24
50
44
EFFECTIVE NUMBER OF BITS (ENOBs)
V
REF
=V
CC
= 2.7V
f
SMPL
= 383kHz (LTC1196)
f
SMPL
= 287kHz (LTC1198)
V
REF
=V
CC
= 5V
f
SMPL
= 1MHz (LTC1196)
f
SMPL
= 750kHz (LTC1198)
T
A
= 25°C