Datasheet

LMH6881
www.ti.com SNOSC72E –JUNE 2012–REVISED MARCH 2013
5V Electrical Characteristics
(1)(2)(3)
The following specifications apply for single supply with VCC = 5 V, Maximum Gain (26 dB), R
L
= 200 Ω, fin = 100 MHz.
Boldface limits apply at temperature extremes.
Symbol Parameter Conditions Min
(4)
Typ
(5)
Max
(4)
Units
Dynamic Performance
3 dBBW −3 dB Bandwidth V
OUT
= 2 V
PPD
2.4 GHz
NF Noise Figure Source Resistance (Rs) = 100 Ω 9.7 dB
OIP3 Output Third Order Intercept f = 100 MHz, P
OUT
= 4 dBm per tone, tone 44 dBm
Point
(6)
spacing = 1 MHz
f = 200 MHz, P
OUT
= 4 dBm per tone, tone 42
spacing = 2 MHz
OIP2 Output Second Order Intercept P
OUT
= 4 dBm per Tone, f1 =112.5 MHz, f2 = 76 dBm
Point 187.5 MHz
IMD3 Third Order Intermodulation f = 100 MHz, P
OUT
= 4 dBm per tone, tone −80 dBc
Products spacing = 1 MHz
f = 200 MHz, P
OUT
= 4 dBm per tone, tone −76
spacing =2 MHz
P1dB 1dB Compression Point Output Power 17 dBm
HD2 Second Order Harmonic Distortion f = 200 MHz, P
OUT
= 4 dBm −65 dBc
HD3 Third Order Harmonic Distortion f = 200 MHz, P
OUT
= 4 dBm −74 dBc
CMRR Common Mode Rejection Ratio
(7)
Pin = −15 dBm, f = 100 MHz −40 dBc
SR Slew Rate 6000 V/us
Output Voltage Noise Maximum Gain f > 1 MHz 47 nV/√Hz
Input Referred Voltage Noise Maximum Gain f > 1 MHz 2.3 nV/√Hz
Analog I/O
R
IN
Input Resistance Differential, INPD to INMD 100 Ω
R
IN
Input Resistance Single Ended, INPS or INPD, 50-Ω 50
Ω
termination on unused input
V
ICM
Input Common Mode Voltage Self Biased 2.5 V
Maximum Input Voltage Swing Volts peak to peak, differential 2.85 V
PPD
Maximum Differential Output Differential, f < 10MHz 6 V
PPD
Voltage Swing
R
OUT
Output Resistance Differential, f = 100MHz 0.4 Ω
Gain Parameters
Maximum Voltage Gain Parallel Inputs (INPD and INMD), Rs = 100 Ω 26
dB
Single ended input (INMS or INPS), 50-Ω Rs 26.6
and 50-Ω termination on unused input.
Minimum Gain Parallel Inputs, Rs = 100 Ω 6 dB
Gain Steps Available using SPI interface 80
Available using parallel interface 10
Gain Step Size Available using SPI interface 0.25
dB
Available using parallel interface 2
(1) Electrical Table values apply only for factory testing conditions at the temperature indicated. No verification of parametric performance is
indicated in the electrical tables under conditions different than those tested
(2) Negative input current implies current flowing out of the device.
(3) Drift determined by dividing the change in parameter at temperature extremes by the total temperature change.
(4) Limits are 100% production tested at 25°C. Limits over the operating temperature range are ensured through correlation using Statistical
Quality Control (SQC) methods.
(5) Typical values represent the most likely parametric norm as determined at the time of characterization. Actual typical values may vary
over time and will also depend on the application and configuration. The typical values are not tested and are not ensured on shipped
production material.
(6) OIP3 is the third order intermodulation intercept point. In this datasheet OIP3 numbers are single power measurements where OIP3 =
IMD3 / 2 + POUT (per tone). OIP2 is the second order intercept point where OIP2 = IMD2 + POUT (per tone). HD2 is the second order
harmonic distortion and is a single tone measurement. HD3 is the third order harmonic distortion and is a single tone measurement.
Power measurements are made at the amplifier output pins.
(7) CMRR is defined as the differential response at the output in response to a common mode signal at the input.
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