Datasheet LTC6409 (Analog Devices) - 8

LTC6409
TYPICAL PERFORMANCE CHARACTERISTICS
V
Harmonic Distortion vs Output Harmonic Distortion vs Input
S = 5V
Harmonic Distortion vs Frequency
VOCM = V
Common Mode V
ICM = 1.25V
oltage Amplitude
RLOAD = 400Ω –50 –30 –80 V V R S = 5V S I = R = 5VF = 150Ω VS = 5V V f V OCM = VICM = 1.25V IN OUTDIFF = 2V = 100MHz P-P V –60 –40 OCM = VICM = 1.25V R R SINGLE-ENDED INPUT LOAD = 400Ω LOAD = 400Ω fIN = 100MHz R HD2 I = RF = 150Ω –50 RI = RF = 150Ω –90 –70 VOUTDIFF = 2VP-P VOUTDIFF = 2VP-P SINGLE-ENDED INPUT –60 SINGLE-ENDED INPUT –80 TION (dBc) TION (dBc) –70 TION (dBc) –100 –90 HD3 HD2 –80 HD2 DISTOR DISTOR DISTOR –100 –90 –110 –110 HD3 RLOAD = 400Ω HD3 –100 RI = RF = 150Ω SINGLE-ENDED INPUT –120 –110 –120 1 10 100 1000 0.5 1 1.5 2 2.5 3 3.5 –4 –2 0 2 4 6 8 10 FREQUENCY (MHz) OUTPUT COMMON MODE VOLTAGE (V) (0.4VP-P) INPUT AMPLITUDE (dBm) (2VP-P) 6409 G22 6409 G23 6409 G24
Intermodulation Distortion vs Intermodulation Distortion vs Intermodulation Distortion vs Frequency Output Common Mode Voltage Input Amplitude
–50 –30 –80 VS = 5V VS = 5V VS = 5V V f VOCM = VICM = 1.25V –60 OCM = VICM = 1.25V IN = 100MHz –40 RLOAD = 400Ω RLOAD = 400Ω fIN = 100MHz RI = RF = 150Ω RI = RF = 150Ω –50 –90 RLOAD = 400Ω –70 2 TONES, 200kHz TONE 2 TONES, 200kHz TONE RI = RF = 150Ω SPACING, 2VP-P COMPOSITE SPACING, 2VP-P COMPOSITE –60 2 TONES, 200kHz TONE SPACING –80 DIFFERENTIAL INPUTS DIFFERENTIAL INPUTS DIFFERENTIAL INPUTS –70 –100 –90 –80 –100 THIRD ORDER IMD (dBc) THIRD ORDER IMD (dBc) –90 THIRD ORDER IMD (dBc) –110 –110 –100 –120 –110 –120 10 100 1000 0.5 1 1.5 2 2.5 3 3.5 2 4 6 8 10 FREQUENCY (MHz) OUTPUT COMMON MODE VOLTAGE (V) (0.8VP-P) INPUT AMPLITUDE (dBm) (2VP-P) 6409 G25 6409 G26 6409 G27
PIN FUNCTIONS +IN, –IN (Pins 2, 6):
Non-Inverting and Inverting Input
VOCM (Pin 5):
Output Common Mode Reference Voltage. Pins. The voltage on this pin sets the output common mode
SHDN (Pin 3):
When SHDN is floating or directly tied to voltage level. If left floating, an internal resistor divider V+, the LTC6409 is in the normal (active) operating mode. develops a default voltage of 1.25V with a 5V supply. When the SHDN pin is connected to V–, the part is dis-
+OUT, –OUT (Pins 7, 1):
Differential Output Pins. abled and draws approximately 100µA of supply current.
Exposed Pad (Pin 11):
Tie the bottom pad to V–. If split
V+, V– (Pins 4, 9 and Pins 8, 10):
Positive and Negative supplies are used, DO NOT tie the pad to ground. Power Supply Pins. Similar pins should be connected to the same voltage. 6409fb 8 For more information www.linear.com/LTC6409 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Applications Information Typical Applications Package Description Revision History Typical Applications Related Parts