Datasheet LT6555 (Analog Devices) - 3

LT6555
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25
°
C. VS =
±
5V, RL = 150
Ω
, CL = 1.5pF, VEN = 0.4V, VAGND, VDGND, VVREF = 0V. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
IS Supply Current, Per Amplifier RL = ∞ 9 12 mA ● 14 mA Supply Current, Disabled, Per Amplifier VEN = 4V, RL = ∞ ● 47 500 µA VEN = Open, RL = ∞ ● 42 500 µA IEN Enable Pin Current VEN = 0.4V ● –200 –95 µA VEN = 4V ● –75 –21 µA ISEL Select Pin Current VSEL = 0.4V ● –50 –5 µA VSEL = 4V ● –50 –1 µA ISC Output Short-Circuit Current RL = 0Ω, VIN = ±1V ● ±50 ±105 mA SR Slew Rate ±1V on ±2.5V Output Step (Note 8) 1600 2200 V/µs –3dB BW Small-Signal –3dB Bandwidth VOUT = 200mVP-P 650 MHz 0.1dB BW Gain Flatness ±0.1dB Bandwidth VOUT = 200mVP-P 120 MHz FPBW Full Power Bandwidth 2V VOUT = 2VP-P (Note 9) 250 350 MHz Full Power Bandwidth 4V VOUT = 4VP-P (Note 9) 175 MHz All-Hostile Crosstalk f = 10MHz, VIN = 1VP-P –72 dB f = 100MHz, VIN = 1VP-P –50 dB Selected Channel to Unselected f = 10MHz, VIN = 1VP-P –80 dB Channel Crosstalk f = 100MHz, VIN = 1VP-P –55 dB Channel Select Output Transient INA = INB = 0V 200 mVP-P Channel-to-Channel Select Time INA = –1V, INB = 1V 8 ns from 50% SEL to VOUT = 0V tS Settling Time 0.1% of VFINAL, VSTEP = 2V 6.5 ns tR, tF Small-Signal Rise and Fall Time 10% to 90%, VOUT = 400mVP-P 520 ps dG Differential Gain (Note 10) 0.033 % dP Differential Phase (Note 10) 0.022 Deg HD2 2nd Harmonic Distortion f = 10MHz, VOUT = 2VP-P –80 dBc HD3 3rd Harmonic Distortion f = 10MHz, VOUT = 2VP-P –70 dBc
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 6:
In order to follow the constraints for 4.5V operation for PSRR of a device may be impaired. and IPSRR testing at ±2.25V, the DGND pin is set to V–, the EN pin is set
Note 2:
This parameter is guaranteed to meet specified performance to V– + 0.4V, and the SEL pin is set to either V– + 0.4V or V– + 4V. At ±6V through design and characterization. It is not production tested. and all other cases, DGND is set to ground and the EN and SEL pins are
Note 3:
As long as output current and junction temperature are kept below referenced from it. the Absolute Maximum Ratings, no damage to the part will occur.
Note 7:
The VREF pin is set to 1V when testing positive swing and –1V Depending on the supply voltage, a heat sink may be required. when testing negative swing to ensure that the internal input clamps do
Note 4:
The LT6555C is guaranteed functional over the operating not limit the output swing. temperature range of –40°C to 85°C.
Note 8:
Slew rate is 100% production tested using both inputs of
Note 5:
The LT6555C is guaranteed to meet specified performance from channel 2. Slew rates of channels 1 and 3 are guaranteed through 0°C to 70°C. The LT6555C is designed, characterized and expected to design and characterization. meet specified performance from –40°C and 85°C but is not tested or QA
Note 9:
Full power bandwidth is calculated from the slew rate: sampled at these temperatures. The LT6555I is guaranteed to meet FPBW = SR/(π • VP-P) specified performance from –40°C to 85°C.
Note 10:
Differential gain and phase are measured using a Tektronix TSG120YC/NTSC signal generator and a Tektronix 1780R video measurement set. The resolution of this equipment is better than 0.05% and 0.05°. Nine identical amplifier stages were cascaded giving an effective resolution of better than 0.0056% and 0.0056%. 6555f 3