LTC1859 Linear Technology, LTC1859 Datasheet - Page 6

• Manufacturer Part Number: LTC1859
• Description: 100ksps SoftSpan A/D Converters
• Manufacturer: Linear Technology

w w w . D a t a S h e e t 4 U . c o m
LTC1857/LTC1858/LTC1859
TYPICAL PERFOR A CE CHARACTERISTICS
6
– 0.5
–1.0
–1.5
–2.0
2.0
1.5
1.0
0.5
90
88
82
80
74
86
84
78
76
–32768
–0.5
–1.0
0
0.5
1.0
1
0
LTC1859 Typical INL Curve
LTC1859 SINAD
vs Input Frequency
–50
LTC1859 Channel-to-Channel Gain
Error Matching vs Temperature
–16384
–25
INPUT FREQUENCY (kHz)
TEMPERATURE (°C)
0
UNIPOLAR MODE
CODE
10
0
25
BIPOLAR MODE
50
16384
W
1859 TA02
75
1859 G04
U
32767
1959 G07
100
100
–100
–110
–70
–80
–90
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
– 0.5
–2.0
–1.0
–1.5
2.0
1.5
1.0
0.5
–32768
0
–50
1
LTC1859 Total Harmonic
Distortion vs Input Frequency
LTC1859 Typical DNL Curve
Internal Reference Voltage
vs Temperature
–25
–16384
INPUT FREQUENCY (kHz)
TEMPERATURE (°C)
0
CODE
10
25
0
50
16384
75
1859 G05
1859 G02
1859 G08
32767
100
100
–0.02
–0.04
–100
–110
–120
–130
–0.5
–1.0
0.04
0.02
–40
–50
–60
–80
–90
–10
–20
–30
–70
1.0
0.5
0
0
0
–50
–50
0
LTC1859 Channel-to-Channel
Offset Error Matching vs
Temperature
LTC1859 Nonaveraged
4096-Point FFT Plot
Change in REFCOMP Voltage
vs Load Current
5
–25
–40
10
LOAD CURRENT (mA)
15
TEMPERATURE (°C)
–30
FREQUENCY (kHz)
0
BIPOLAR MODE
20
25
–20
25
UNIPOLAR MODE
30
f
f
SINAD = 86.95dB
THD = –101.42dB
SAMPLE
IN
–10
50
= 1kHz
35
40 45
= 100kHz
75
0
1869 G03
185789f
1959 G06
1859 G09
100
50
10