LTC1594 Linear Technology, LTC1594 Datasheet - Page 5

• Manufacturer Part Number: LTC1594
• Description: 4- and 8-Channel/ Micropower Sampling 12-Bit Serial I/O A/D Converters
• Manufacturer: Linear Technology

TYPICAL PERFORMANCE CHARACTERISTICS
–10
1.5
3.0
2.5
2.0
0.5
1.0
–9
–8
–7
–6
–5
–4
–3
–2
–1
12
11
10
0
9
8
7
6
5
4
3
2
1
0
0
1.0
1.0
1
Change in Offset
vs Reference Voltage
Change in Gain
vs Reference Voltage
Effective Bits and S/(N + D)
vs Input Frequency
T
V
f
f
CLK
SMPL
A
CC
1.5
1.5
= 25 C
= 5V
= 320kHz
= 16.8kHz
2.0
2.0
REFERENCE VOLTAGE (V)
REFERENCE VOLTAGE (V)
INPUT FREQUENCY (kHz)
10
2.5
2.5
3.0
3.0
3.5
3.5
T
V
f
f
T
V
f
f
CLK
SMPL
CLK
SMPL
A
100
A
CC
CC
= 25 C
= 25 C
= 5V
= 5V
= 320kHz
= 320kHz
4.0
4.0
W
= 16.8kHz
= 16.8kHz
1594/98 G10
1594/98 G07
4.5
1594/98 G04
4.5
U
1000
5.0
5.0
74
68
62
56
50
44
38
– 0.5
–1.5
– 2.0
– 2.5
– 3.0
–1.0
1.0
0.5
2.0
1.5
0
0
100
– 55
90
80
70
60
40
20
10
50
30
1
Change in Offset vs Temperature
Peak-to-Peak ADC Noise
vs Reference Voltage
0
T
V
f
V
f
f
1
CLK
Spurious Free Dynamic Range
vs Frequency
CLK
SMPL
A
CC
CC
T
V
f
– 35
SMPL
= 25 C
A
CC
= 5V
= V
= 320kHz
= 320kHz
= 25 C
= V
= 16.8kHz
REF
– 15
= 16.8kHz
REFERENCE VOLTAGE (V)
2
REF
TEMPERATURE ( C)
= 5V
INPUT FREQUENCY (kHz)
= 5V
10
5
3
25
45
100
4
65
1594/98 G05
1594/98 G08
1594/98 G11
85
5
1000
– 0 .50
– 0 .45
– 0 .40
– 0 .35
– 0 .30
– 0 .25
– 0 .20
– 0 .15
– 0 .10
– 0 .05
– 0.2
– 0.4
– 0.6
– 0.8
–1.0
1.0
0.8
0.6
0.4
0.2
0.0
20
10
80
70
60
50
40
30
0
0
LTC1594/LTC1598
– 40
1.0
0
Change in Linearity
vs Reference Voltage
Differential Nonlinearity vs Code
S/(N + D) vs Input Level
T
V
f
f
IN
SMPL
A
CC
1.5
= 25 C
= 1kHz
= V
= 16.8kHz
REF
– 30
2.0
REFERENCE VOLTAGE (V)
= 5V
INPUT LEVEL (dB)
2.5
CODE
2048
–20
3.0
3.5
T
V
f
f
CLK
SMPL
A
CC
= 25 C
= 5V
= 320kHz
–10
4.0
= 16.8kHz
1594/98 G06
1594/98 G09
1594/98 G12
4.5
5
4096
5.0
0