Datasheet

5
LTC1405
1405fa
Note 6: Dynamic specifications are guaranteed for dual supply operation
with a single-ended +A
IN
input and –A
IN
grounded. For single supply
dynamic specifications, refer to the Typical Performance Characteristics.
Note 7: 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 8: Bipolar offset is the offset voltage measured from –0.5LSB
when the output code flickers between 0000 0000 0000 and
1111 1111 1111.
Note 9: Guaranteed by design, not subject to test.
Note 10: Recommended operating conditions.
ELECTRICAL CHARACTERISTICS
TYPICAL PERFORMANCE CHARACTERISTICS
UW
INPUT FREQUENCY (MHz)
0.1
S/(N + D) (dB)
60
65
1405 G01
55
50
1
10
100
75
70
V
IN
= 0dB
V
IN
= –6dB
V
IN
= –20dB
DUAL SUPPLIES
±2.048V RANGE
GAIN = 1×
INPUT FREQUENCY (MHz)
0.1
S/(N + D) (dB)
60
65
1405 G04
55
50
1
10
100
75
70
V
IN
= 0dB
V
IN
= –6dB
V
IN
= –20dB
SINGLE SUPPLY
±1.024V RANGE
GAIN = 2×
INPUT AMPLITUDE (dBFS)
–50
40
SFDR (dBc AND dBFS)
50
60
70
80
90
100
dBFS
dBc
–40 –30 –20 –10
1405 G02
0
DUAL SUPPLIES
±2.048V RANGE
GAIN = 1×
f
IN
= 2.5MHz
INPUT FREQUENCY (MHz)
0
–95
DISTORTION (dB)
–90
–80
–75
–70
10
–50
1405 G03
–85
1 100
–65
–60
–55
THD
3RD
2ND
DUAL SUPPLIES
±2.048V RANGE
GAIN = 1×
A
IN
= 0dBFS
INPUT AMPLITUDE (dBFS)
–50
40
SFDR (dBc AND dBFS)
50
60
70
80
90
100
dBFS
–40 –30 –20 –10
1405 G05
0
SINGLE SUPPLY
±1.024V RANGE
GAIN = 2×
f
IN
= 2.5MHz
dBc
INPUT FREQUENCY (MHz)
0
–95
DISTORTION (dB)
–90
–80
–75
–70
10
–50
1405 G06
–85
1 100
–65
–60
–55
THD
2ND
3RD
SINGLE SUPPLY
±1.024V RANGE
GAIN = 2×
A
IN
= 0dBFS

S/(N+D) vs Input Frequency
and Amplitude
S/(N+D) vs Input Frequency
and Amplitude
Spurious-Free Dynamic Range
vs Input Amplitude
Distortion vs Input Frequency
Spurious-Free Dynamic Range
vs Input Amplitude
Distortion vs Input Frequency