LTC1196/LTC1198
TYPICAL PERFOR A CE CHARACTERISTICS
Input Channel Leakage Current
vs Temperature
1000
100
10
ON CHANNEL
1
OFF CHANNEL
0.1
INTEGRAL NONLINEARITY ERROR (LSB)
V
CC
= 5V
V
REF
= 5V
LEAKAGE CURRENT (nA)
V
CC
= 5V
V
REF
= 5V
f
CLK
= 12MHz
DIFFERENTIAL NONLINEARITY ERROR (LSB)
0.01
– 60 –40 –20 0 20 40 60 80 100 120 140
TEMPERATURE (°C)
1196/98 G19
Integral Nonlinearity vs
Code at 2.7V
0.5
V
CC
= 2.7V
V
REF
= 2.5V
f
CLK
= 3MHz
INL ERROR (LSB)
DIFFERENTIAL NONLINEARITY ERROR (LSB)
EFFECTIVE NUMBER OF BITS (ENOBs)
0
–0.5
0
32
64
96 128 160 192 224 256
CODE
1196/98 G22
4096 Point FFT Plot at 5V
0
–10
–20
V
CC
= 5V
f
IN
= 29kHz
f
SMPL
= 882kHz
MAGNITUDE (dB)
MAGNITUDE (dB)
MAGNITUDE (dB)
–30
–40
–50
–60
–70
–80
–90
–100
0
100
300
200
FREQUENCY (kHz)
400
500
1196/98 G25
U W
Integral Nonlinearity vs
Code at 5V
0.5
0.5
Differential Nonlinearity vs
Code at 5V
V
CC
= 5V
V
REF
= 5V
f
CLK
= 12MHz
0
0
–0.5
0
32
64
96 128 160 192 224 256
CODE
1196/98 G20
–0.5
0
32
64
96 128 160 192 224 256
CODE
1196/98 G21
Differential Nonlinearity vs
Code at 2.7V
0.5
V
CC
= 2.7V
V
REF
= 2.5V
f
CLK
= 3MHz
8
7
6
5
4
3
2
1
0
Effective Bits and S/(N + D) vs
Input Frequency
50
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)
44
S/(N + D) (dB)
0
T
A
= 25°C
1k
10k
100k
INPUT FREQUENCY (Hz)
1M
1196/98 G24
–0.5
0
32
64
96 128 160 192 224 256
CODE
1196/98 G23
4096 Point FFT at 2.7V
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
50
150
100
FREQUENCY (kHz)
200
1196/98 G26
FFT Output of 455kHz AM Signal
Digitized at 1MSPS
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
0
100
300
200
FREQUENCY (kHz)
400
500
1196/98 G27
V
CC
= 2.7V
f
IN
= 29kHz
f
SMPL
= 340kHz
V
CC
= 5V
f
IN
= 455kHz WITH 20kHz AM
f
SMPL
= 1MHz
9
LINER [ LINEAR TECHNOLOGY ]
