LTC1865IMS View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1865IMS

µPower, 16-Bit, 250ksps 1- and 2-Channel ADCs in MSOP

Linear Technology

'LTC1865IMS' PDF : 20 Pages View PDF

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TYPICAL PERFORMANCE CHARACTERISTICS
LTC1864/LTC1865
Change in Offset Error vs
Reference Voltage
75
VCC = 5V
TA = 25°C
50
25
0
–25
0
1
2
3
4
5
REFERENCE VOLTAGE (V)
18645 G10
Change in Gain Error vs
Temperature
5
VCC = 5V
4 VREF = 5V
3
2
1
0
–1
–2
–3
–4
–5
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
18645 G13
Change in Offset vs Temperature
5
VCC = 5V
4 VREF = 5V
3
2
1
0
–1
–2
–3
–4
–5
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
18645 G11
Histogram of 4096 Conversions of
a DC Input Voltage
1800
1600
1400
1534
VCC = 5V
TA = 25°C
VREF = 5V
1200
1178
1000
800
729
600
516
400
200
127
00
0
12 0 0
–4 –3 –2 –1 0 1 2 3 4 5
CODE
18645 G14
Change in Gain Error vs
Reference Voltage
20
VCC = 5V
15 TA = 25°C
10
5
0
–5
–10
–15
–20
0
1
2
3
4
5
REFERENCE VOLTAGE(V)
18645 G12
4096 Point FFT Nonaveraged
0
fS = 203.125kHz
–20
fIN = 99.72763kHz
VCC = 5V
VREF = 5V
–40 TA = 25°C
–60
–80
–100
–120
–140
0
20 40 60 80 100 120
FREQUENCY (kHz)
18645 G15
SINAD vs Frequency
100
90
SNR
80
70
SINAD
60
50
40
30
20
10
0
1
10
100
FIN (kHz)
VCC = 5V
VREF = 5V
TA = 25°C
VIN = 0dB
1000
18645 G16
THD vs Frequency
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
1
VCC = 5V
VREF = 5V
TA = 25°C
VIN = 0dB
10
100
FIN (kHz)
1000
18645 G17
SFDR vs Frequency
100
90
80
70
60
50
40
30
20
10
0
1
10
100
FIN (kHz)
VCC = 5V
VREF = 5V
TA = 25°C
VIN = 0dB
1000
18645 G18
18645fb
9

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