ltc6400cud-26-trpbf Linear Technology Corporation, ltc6400cud-26-trpbf Datasheet - Page 6

• Manufacturer Part Number: ltc6400cud-26-trpbf
• Description: 1.8ghz Low Noise, Low Distortion Differential Adc Driver For 300mhz If
• Manufacturer: Linear Technology Corporation

AC ELECTRICAL CHARACTERISTICS
LTC6400-20
⎯ E ⎯ N ⎯ A ⎯ B ⎯ L ⎯ E = 0V, No R
SYMBOL
300MHz Input Signal
HD
IMD
OIP
P
NF
e
e
IMD
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Input pins (+IN, –IN) are protected by steering diodes to either
supply. If the inputs go beyond either supply rail, the input current should
be limited to less than 10mA.
Note 3: The LTC6400C and LTC6400I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
Note 4: The LTC6400C is guaranteed to meet specifi ed performance from
0°C to 70°C. It is designed, characterized and expected to meet specifi ed
6
N,300M
ON,300M
1dB,300M
300M
2,300M
3,300M
3,300M
3,280M/320M
/HD
3,300M
PARAMETER
Second-Order Harmonic Distortion
Third-Order Intermodulation
(f1 = 299.5MHz f2 = 300.5MHz)
Third-Order Output Intercept Point
(f1 = 299.5MHz f2 = 300.5MHz)
1dB Compression Point
Noise Figure
Input Referred Voltage Noise Density
Output Referred Voltage Noise Density Includes Resistors (Short Inputs)
Third-Order Intermodulation
(f1 = 280MHz f2 = 320MHz) Measure
at 360MHz
L
unless otherwise noted.
CONDITIONS
2V
2V
2V
2V
2V
2V
2V
R
R
Includes Resistors (Short Inputs)
2V
L
L
P-P,OUT
P-P,OUT
P-P,OUTFILT
P-P,OUT
P-P,OUT
P-P,OUTFILT
P-P,OUT
P-P,OUT
= 375Ω (Notes 5, 7)
= 375Ω (Note 5)
, R
, No R
Composite, R
Composite, No R
Composite, No R
Composite, R
L
, No R
Composite, No R
= 400Ω
Specifi cations are at T
L
performance from –40°C to 85°C but is not tested or QA sampled at these
temperatures. The LTC6400I is guaranteed to meet specifi ed performance
from –40°C to 85°C.
Note 5: Input and output baluns used. See Test Circuit A.
Note 6: Measured using Test Circuit B.
Note 7: Since the LTC6400-20 is a feedback amplifi er with low output
impedance, a resistive load is not required when driving an AD converter.
Therefore, typical output power is very small. In order to compare the
LTC6400-20 with amplifi ers that require 50Ω output load, the LTC6400-20
output voltage swing driving a given R
if it were driving a 50Ω load. Using this modifi ed convention, 2V
defi nition equal to 10dBm, regardless of actual R
L
L
L
= 400Ω
= 375Ω
L
L
(Note 7)
L
A
= 25°C. V
MIN
–64
+
= 3V, V
L
is converted to OIP
–
–61/–53
–60/–55
–63/–46
= 0V, V
36.6
17.5
TYP
–64
–65
–58
–70
7.5
1.8
22
L
.
OCM
= 1.25V,
MAX
3
and P
P-P
1dB
nV/√Hz
nV/√Hz
is by
UNITS
640020f
dBm
dBm
as
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dB