Linear Technology LTC2378-16 with LTC6655-5/LT6350: 16-Bit, 1Msps, SAR ADC with 97dB SNR. Req DC718 or DC590 DC1783A-B DC1783A-B Data Sheet
Product codes
DC1783A-B
LTC2378-16
6
237816f
Typical perForMance characTerisTics
32k Point FFT f
S
= 1Msps,
f
IN
= 2kHz
SNR, SINAD vs Input Frequency
THD, Harmonics
vs Input Frequency
SNR, SINAD vs Input level,
f
IN
= 2kHz
SNR, SINAD vs Reference
Voltage, f
IN
= 2kHz
THD, Harmonics vs Reference
Voltage, f
IN
= 2kHz
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code
DC Histogram
OUTPUT CODE
0
16384
32768
49152
65536
–1.0
INL ERROR (LSB)
0.0
0.2
0.4
0.6
0.8
–0.4
–0.2
–0.6
–0.8
1.0
237816 G01
FREQUENCY (kHz)
0
100
200
300
500
400
–180
AMPLITUDE (dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
237816 G04
SNR = 97.2dB
THD = –121.7dB
SINAD = 97.1dB
SFDR = 128dB
OUTPUT CODE
–0.5
DNL ERROR (LSB)
0.4
0.3
0.2
0.1
0.0
–0.4
–0.3
–0.2
–0.1
0.5
237816 G02
0
16384
32768
49152
65536
CODE
32680
32679
32678
32677
32676
0
COUNTS
40000
20000
100000
60000
120000
80000
140000
σ = 0.15
237816 G03
T
A
= 25°C, V
DD
= 2.5V, OV
DD
= 2.5V, V
CM
= 2.5V,
REF = 5V, f
SMPL
= 1Msps, unless otherwise noted.
INPUT LEVEL (dB)
SNR, SINAD (dBFS)
98.0
237816 G07
96.0
96.5
97.0
97.5
–40
–30
–20
–10
0
SNR
SINAD
REFERENCE VOLTAGE (V)
SNR, SINAD (dBFS)
98.0
97.0
97.5
237816 G08
94.0
94.5
95.0
95.5
96.0
96.5
2.5
3.0
3.5
4.0
4.5
5.0
SINAD
SNR
HARMONICS, THD (dBFS)
–100
237816 G09
–150
–145
–140
–135
–130
–125
–120
–115
–110
–105
3RD
REFERENCE VOLTAGE (V)
2.5
3.0
3.5
4.0
4.5
5.0
2ND
THD
FREQUENCY (kHz)
SNR, SINAD (dBFS)
98.0
97.5
237816 G05
93.0
93.5
95.0
94.5
94.0
97.0
96.5
96.0
95.5
0
25
50
75
150
125
100
200
175
SNR
SINAD
FREQUENCY (kHz)
HARMONICS, THD (dBFS)
–80
237816 G06
–140
–130
–120
–110
–100
–90
0
25
50
75
150
125
100
175 200
3RD
2ND
THD