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LTC1750 Datasheet, PDF (5/20 Pages) Linear Technology – 14-Bit, 80Msps Wide Bandwidth ADC
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LTC1750
ELECTRICAL CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All voltage values are with respect to GND (unless otherwise
noted).
Note 3: When these pin voltages are taken below GND or above VDD, they
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above VDD without latchup.
Note 4: When these pin voltages are taken below GND, they will be
clamped by internal diodes. This product can handle input currents of
>100mA below GND without latchup. These pins are not clamped to VDD.
Note 5: VDD = 5V, fSAMPLE = 80MHz, differential ENC/ENC = 2VP-P 80MHz
sine wave, input range = ±1.125V differential, unless otherwise specified.
Note 6: Integral nonlinearity is defined as the deviation of a code from a
straight line passing through the actual endpoints of the transfer curve.
The deviation is measured from the center of the quantization band.
Note 7: Bipolar offset is the offset voltage measured from – 0.5 LSB
when the output code flickers between 00 0000 0000 0000 and 11
1111 1111 1111.
Note 8: Guaranteed by design, not subject to test.
Note 9: Recommended operating conditions.
TYPICAL PERFOR A CE CHARACTERISTICS
INL
2.5
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
–2.5
0
4096
8192
12288
OUTPUT CODE
16384
1750 G01
8192 Point FFT, fIN = 15.2MHz,
–10dB, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
1750 G04
DNL
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192 12288
OUTPUT CODE
16384
1750 G02
8192 Point FFT, fIN = 15.2MHz,
–20dB, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
1750 G05
8192 Point FFT, fIN = 15.2MHz,
–1dB, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
1750 G03
8192 Point FFT, fIN = 30.2MHz,
–1dB, PGA = 0
0
–10
–20
–30
–40
–50
–60
–70
–80
–90
–100
–110
–120
0
5 10 15 20 25 30 35 40
FREQUENCY (MHz)
1750 G06
1750f
5
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