LTC1285IS8 Linear Technology, LTC1285IS8 Datasheet - Page 5

• Manufacturer Part Number: LTC1285IS8
• Description: IC A/D CONV SAMPLING 12BIT 8SOIC
• Manufacturer: Linear Technology

Specifications of LTC1285IS8

• Number Of Bits: 12
• Sampling Rate (per Second): 7.5k
• Data Interface: MICROWIRE™, Serial, SPI™
• Number Of Converters: 1
• Power Dissipation (max): 480µW
• Voltage Supply Source: Single Supply
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

TYPICAL PERFORMANCE CHARACTERISTICS
– 0.20
– 0.05
– 0.10
– 0.15
0.20
0.15
0.10
0.05
50
45
40
35
30
25
20
15
10
5
0
0
0
0
Reference Current vs
Sample Rate (LTC1285)
Change in Offset vs Temperature
T
V
V
f
V
V
f
f
CLK
CLK
SMPL
A
CC
REF
CC
REF
= 25°C
1
10
= 2.7V
= 2.7V
= 120kHz
= 120kHz
= 2.5V
= 2.5V
= f
SMPL(MAX)
2
20
SAMPLE RATE (kHz)
TEMPERATURE (°C)
– 0.5
0.5
–1
3
1
0
30
0
Differential Nonlinearity vs Code
T
V
V
f
4
CLK
A
CC
REF
512 1024 1536 2048
= 25°C
40
= 2.7V
= 120kHz
= 2.5V
5
50
6
LTC1285/88 • TPC04
LTC1285/88 • TPC07
W
60
7
CODE
U
70
8
2560 3072 3584 4096
LTC1285/88 • TPC11
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
49
43
53
52
51
50
48
47
46
45
44
0
–55
1.0
Reference Current vs Temperature
Change in Linearity
vs Reference Voltage
V
V
f
f
T
V
f
f
CLK
SMPL
CLK
SMPL
CC
REF
A
CC
–35
1.2
= 25°C
= 2.7V
= 2.7V
= 120kHz
= 120kHz
= 2.5V
= 7.5kHz
= 7.5kHz
–15
1.4
REFERENCE VOLTAGE (V)
TEMPERATURE (°C)
1.6
5
1.8 2.0
25
45
2.2 2.4 2.6
65
12
11
10
9
8
7
6
5
4
3
2
1
0
LTC1285/88 • TPC05
LTC1285/88 • TPC08
1
Effective Bits and S/(N + D)
vs Input Frequency
85 105
T
V
f
CLK
A
CC
= 25°C
= 2.7V
= 120kHz
125
INPUT FREQUENCY (kHz)
2.8
10
–10
3.0
2.5
2.0
1.5
1.0
0.5
LTC1285/LTC1288
– 9
– 8
– 7
– 6
– 5
– 4
– 3
– 2
– 1
0
0
0.5
1.0
Change in Offset
vs Reference Voltage
Change in Gain
vs Reference Voltage
T
V
f
f
T
V
f
f
CLK
SMPL
CLK
SMPL
A
CC
A
CC
1.2
= 25°C
LTC1285/88 • TPC12
= 25°C
= 2.7V
= 120kHz
= 2.7V
= 120kHz
1.0
= 7.5kHz
= 7.5kHz
1.4
REFERENCE VOLTAGE (V)
REFERENCE VOLTAGE (V)
1.6
100
1.5
74
68
62
56
50
1.8 2.0
2.0
2.2 2.4 2.6
LTC1285/88 • TPC09
LTC1285/88 • TPC06
2.5
5
3.0
2.8