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LMH6518_15 Datasheet, PDF (5/41 Pages) Texas Instruments – LMH6518 900 MHz, Digitally Controlled, Variable Gain Amplifier
LMH6518
www.ti.com
SNOSB21C – MAY 2008 – REVISED JULY 2013
Electrical Characteristics (1) (continued)
Unless otherwise specified, all limits are ensured for TA = 25°C, Input CM = 2.5V, VCM = 1.2V, VCM_Aux = 1.2V, Single-ended
input drive, VCC = 5V, VDD = 3.3V, RL = 100Ω differential (both Main & Auxiliary Outputs), VOUT = 0.7 VPP differential (both
Main & Auxiliary Outputs), both Main and Auxiliary Output Specifications, full bandwidth setting, gain = 18.8 dB (Preamp LG,
0 dB ladder attenuation), Full Power setting (2). Electrical Characteristics Definition of Terms and Specifications for
abbreviations used in the datasheet. Boldface limits apply at the temperature extremes.
Symbol
Parameter
Condition
Min(3) Typ(4) Max(3) Units
TCVOOS
Output Offset Voltage Drift(9)
Preamp HG, 0 dB Ladder
−24
µV/°C
Preamp LG, 0 dB Ladder
−7
IB
Input Bias Current(10)
+40
+100
+140
µA
VOCM
VOS_CM
TC_VOS_CM
BAL_Error_DC
Output CM Voltage Range
Output CM Offset Voltage
CM Offset Voltage Temp Coefficient
Output Gain Balance Error
BAL_Error_AC
All Gains
All Gains
All Gains
DC, VO_CM
VOUT
250 MHz, vO_CM
vOUT
0.95
1.20
1.45
V
±15
±30
mV
+55
µV/°C
−78
dB
−45
PB
PSRR
PSRR_CM
VCM_I
VCM_AUX_I
Phase Balance Error (See Table 1)
Differential Power Supply Rejection(see
Table 1)
CM Power Supply Rejection(see
Table 1)
VCM Input Bias Current(11)
250 MHz
Preamp HG, 0 dB Ladder
Preamp LG, 0 dB Ladder
Preamp LG, 0 dB
All Gains
VCM_AUX Input Bias Current(11)
All Gains
±0.8
deg
−60
−87
dB
−50
−70
−55
−71
dB
±1
±10
±20
nA
±1
±10
±20
(9) Drift determined by dividing the change in parameter at temperature extremes by the total temperature change.
(10) Positive current is current flowing into the device.
(11) Positive current is current flowing into the device.
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