LTC2379-18
TYPICAL PERFORMANCE CHARACTERISTICS
REF = 5V, f
SMPL
= 1.6Msps, unless otherwise noted.
SNR, SINAD vs Temperature,
f
IN
= 2kHz
103
SNR
102
HARMONICS, THD (dBFS)
SINAD
SNR, SINAD (dBFS)
101
100
99
98
97
96
–55 –35 –15
–135
–55 –35 –15
–2
–55 –35 –15
–115
THD
–120
3RD
INL/DNL ERROR (LSB)
1
MAX INL
–110
T
A
= 25°C, V
DD
= 2.5V, OV
DD
= 2.5V, V
CM
= 2.5V,
THD, Harmonics vs Temperature,
f
IN
= 2kHz
2
INL/DNL vs Temperature
MAX DNL
0
MIN DNL
MIN INL
–125
2ND
–130
–1
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G08
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G09
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G10
Full-Scale Error vs Temperature
8
6
FULL-SCALE ERROR (LSB)
4
2
0
–2
–4
–6
–8
–55 –35 –15
+FS
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G11
Offset Error vs Temperature
2.0
POWER SUPPLY CURRENT (mA)
8
7
6
5
4
3
2
1
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G12
Supply Current vs Temperature
I
VDD
–FS
OFFSET ERROR (LSB)
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–55 –35 –15
I
REF
I
OVDD
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G13
0
–55 –35 –15
Shutdown Current vs Temperature
45
40
POWER-DOWN CURRENT (μA)
35
30
CMRR (dB)
25
20
15
10
75
5
0
–55 –35 –15
70
5 25 45 65 85 105 125
TEMPERATURE (°C)
237918 G14
CMRR vs Input Frequency
100
95
90
85
80
1.0
0.9
REFERENCE CURRENT (mA)
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
200
400
600
FREQUENCY (kHz)
800
237918 G15
Reference Current vs
Reference Voltage
I
VDD
+ I
OVDD
+ I
REF
0
2.5
3.0
3.5
4.0
4.5
REFERENCE VOLTAGE (V)
5.0
237918 G18
237918fa
7
LINEAR [ LINEAR INTEGRATED SYSTEMS ]
