LTC1747 Linear Technology, LTC1747 Datasheet - Page 5

• Manufacturer Part Number: LTC1747
• Description: 12-Bit 80Msps Low Noise ADC
• Manufacturer: Linear Technology

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 V
will be clamped by internal diodes. This product can handle input currents
of greater than 100mA below GND or above V
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 V
TYPICAL PERFOR A CE CHARACTERISTICS
–100
–110
–120
–30
–40
–50
–70
–10
–20
–60
–80
–90
0
0
Averaged 8192 Point FFT,
5.2MHz Input, –1dB, 3.2V Range
5
10
FREQUENCY (MHz)
–0.2
–0.4
–0.6
–1.0
–0.8
0.2
0.8
0.6
0.4
15
1
0
0
INL, 3.2V Range
T
20
A
= 25 C
25
1024
30
W
T
OUTPUT CODE
A
= 25 C
35
1747 G04
2048
U
40
DD
without latchup.
3072
–120
–100
–110
–30
–40
–50
–70
–10
–20
–60
–80
–90
0
1747 G01
0
Averaged 8192 Point FFT,
5.2MHz Input, –10dB, 3.2V Range
4096
5
DD
, they
10
DD
FREQUENCY (MHz)
.
15
20
Note 5: V
sine wave, input range = 1.6V 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 0000 0000 0000 and
1111 1111 1111.
Note 8: Guaranteed by design, not subject to test.
Note 9: Recommended operating conditions.
25
30
DD
T
–0.2
–0.4
–0.6
–0.8
–1.0
A
0.2
0.8
0.6
0.4
= 5V, f
= 25 C
35
1
0
1747 G05
0
DNL, 3.2V Range
T
A
40
SAMPLE
= 25 C
1024
= 80MHz, differential ENC/ENC = 2V
–100
–110
–120
OUTPUT CODE
–20
–30
–40
–50
–70
–10
–60
–80
–90
0
2048
0
Averaged 8192 Point FFT,
5.2MHz Input, –20dB, 3.2V Range
T
A
= 25 C
5
10
www.DataSheet4U.com
3072
FREQUENCY (MHz)
15
1747 G02
20
4096
LTC1747
25
30
P-P
80MHz
35
1747 G06
1747fa
5
40