Datasheet LT5514 (Analog Devices) - 5

LT5514
AC ELECTRICAL CHARACTERISTICS (Low Power Mode) VCC = 5V, VCCO = 5V, ENA = 3V, ENB = 0.6V, TA = 25
°
C, ROUT = 200
Ω
. Maximum gain specifications are with respect to differential inputs and differential outputs, unless otherwise noted. (Note 7) (Test circuits shown in Figures 9 and 10) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Dynamic Performance
BW Large-Signal –3dB Bandwidth All Gain Settings (Note 8), ROUT = 100Ω LF to 540 MHz POUT(MAX) Clipping Limited Maximum Sinusoidal All Gain Settings, Single Tone, 16 dBm Output Power fIN = 100MHz (Note 10) gm Amplifier Transconductance Max Gain, fIN = 100MHz 0.15 S S12 Reverse Isolation fIN = 100MHz (Note 9) –92 dB
Distortion and Noise
OIP3 Output Third Order Intercept Point for POUT = 4dBm (Each Tone), 200kHz Tone Spacing, PGA0 = High (PGA1, PGA2, PGA3 Any State) fIN = 100MHz +40 dBm Output Third Order Intercept Point for POUT = 4dBm (Each Tone), 200kHz Tone Spacing, PGA0 = Low (PGA1, PGA2, PGA3 Any State) fIN = 100MHz +36 dBm HD2 Second Harmonic Distortion POUT = 5dBm (Single Tone), fIN = 50MHz –76 dBc HD3 Third Harmonic Distortion POUT = 5dBm (Single Tone), fIN = 50MHz –72 dBc NFLOOR Output Noise Floor PGA1 = High, fIN = 100MHz –138 dBm/Hz (PGAO, PGA2, PGA3 Any State) PGA1 = Low, fIN = 100MHz –140 dBm/Hz NF Noise Figure Max Gain Setting, fIN = 100MHz 8.6 dB
Amplifier Power Gain and Gain Step
GMAX Maximum Gain fIN = 20MHz and 200MHz 27 dB GMIN Minimum Gain fIN = 20MHz and 200MHz 4.5 dB GSTEP Gain Step Size fIN = 20MHz and 200MHz 1.05 1.5 1.95 dB Gain Step Accuracy fIN = 20MHz and 200MHz ±0.1 dB
Amplifier I/O Impedance
RIN Input Resistance fIN = 100MHz, Parallel Values Specified 122 Ω Differentially CIN Input Capacitance fIN = 100MHz, Parallel Values Specified 2 pF Differentially RO Output Resistance fIN = 100MHz, Parallel Values Specified 5 kΩ Differentially CO Output Capacitance fIN = 100MHz, Parallel Values Specified 1.7 pF Differentially
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 7:
Specifications over the –40°C to 85°C operating temperature of the device may be impaired. range are assured by design, characterization and correlation with
Note 2:
All voltage values are with respect to ground. statistical process controls. Gain always refers to power gain. Input
Note 3:
Default state for open PGA inputs. matching is assumed. PIN is the available input power. POUT is the power into the external load, R
Note 4:
V OUT, as seen by the LT5514 differential outputs. All CC1 and VCC2 (Pins 2 and 19) are internally connected. dBm figures are with respect to 50Ω.
Note 5:
External VOSUP is adjusted such that VCCO output pin common
Note 8:
High frequency operation is limited by the RC time constants at mode voltage is as specified when resistors are used. For choke inductors the input and output ports. The low frequency (LF) roll-off is set by I/O or transformer, VOSUP = VCCO = 5V typ. interface choice.
Note 6:
Internally generated common mode input bias voltage requires
Note 9:
Limited by package and board isolation. capacitive or transformer coupling to the signal source.
Note 10:
See “Clipping Free Operation” in the Applications Information section. Refer to Figure 7. 5514f 5