LTC1740 查看數據表（PDF） - Linear Technology
零件编号
产品描述 (功能)
生产厂家
LTC1740 Datasheet PDF : 16 Pages
| |||
WU
TI I G 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 ground with GND and OGND
wired together (unless otherwise noted).
Note 3: When these pin voltages are taken below VSS or above VDD, they
will be clamped by internal diodes. This product can handle input currents
greater than 100mA below VSS or above VDD without latchup.
Note 4: VDD = 5V, VSS = –5V or 0V, fSAMPLE = 6MHz, tr = tf = 5ns unless
otherwise specified.
Note 5: Linearity, offset and full-scale specifications apply for a
single-ended +AIN input with – AIN tied to VCM for single supply and 0V for
dual supply.
LTC1740
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 –0.5LSB
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
Typical INL at 6Msps
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
4096
8192
CODE
12288 16384
1740 G01
S/(N + D) vs Input Frequency
and Amplitude
80
VIN = 0dBFS
75
VIN = –6dBFS
70
65
VIN = –20dBFS
60
SINGLE SUPPLY
55 5V INPUT RANGE
DIFFERENTIAL INPUT
6Msps
50
0.1
1
10
INPUT FREQUENCY (MHz)
100
1740 G04
Typical DNL at 6Msps
1.0
0.8
0.6
0.4
0.2
0
–0.2
–0.4
–0.6
–0.8
–1.0
0
4096
8192
CODE
12288 16384
1740 G02
SFDR and THD
vs Input Frequency
95
90
SFDR
85
–THD
80
75
70
65 DUAL SUPPLIES
60 5V INPUT RANGE
AIN = 0dBFS
55 DIFFERENTIAL INPUT
6Msps
50
0.1
1
10
INPUT FREQUENCY (MHz)
100
1740 G05
S/(N + D) vs Input Frequency
and Amplitude
80
VIN = 0dBFS
75
VIN = –6dBFS
70
65
VIN = –20dBFS
60
DUAL SUPPLIES
55 5V INPUT RANGE
DIFFERENTIAL INPUT
6Msps
50
0.1
1
10
INPUT FREQUENCY (MHz)
100
1740 G03
SFDR and THD
vs Input Frequency
95
90
SFDR
85
–THD
80
75
70
65 SINGLE SUPPLY
60 5V INPUT RANGE
AIN = 0dBFS
55 DIFFERENTIAL INPUT
6Msps
50
0.1
1
10
INPUT FREQUENCY (MHz)
100
1740 G06
1740f
5
Share Link: 