LTC6228/LTC6229

9

Rev. B

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The l denotes the specifications which apply

over the full operating temperature range, otherwise specifications are at TA = 25°C. VS = 3V, 0V,VCM = 1.5V, VSHDN = floating unless

otherwise noted.

ELECTRICAL CHARACTERISTICS (VS = 3V, 0V)

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

VL_SHDN SHDN Pin Input Voltage Low, Disable Amplifier

l

V+ – 2.65

V

VH_SHDN SHDN Pin Input Voltage High, Enable Amplifier

l

V+ – 1.6

V

VL_IBIAS SHDN Pin Input Voltage Low, Disable Bias

Cancellation

l

V+ – 1

V

VH_IBIAS SHDN Pin Input Voltage Low, Enable Bias

Cancellation

l

V+ – 0.35

V

IL_SHDN SHDN Pin Input Current, Disable Amplifier

VSHDN = V+ – 2.65V

l

–10

–2.5

10

μA

IH_SHDN SHDN Pin Input Current, Enable Amplifier

VSHDN = V+ – 1.6V

l

–10

–0.3

10

μA

IL_IBIAS

SHDN Pin Input Current Low, Disable Bias

Cancellation

VSHDN = V+ – 1V

l

–10

0.265

10

μA

IH_IBIAS

SHDN Pin Input Current Low, Enable Bias

Cancellation

VSHDN = V+ – 0.35V

l

–10

1

10

μA

IOSD

Output Leakage Current in Shutdown

VSHDN = V+ – 2.65V, OUT Shorted to V+ or V–

100

nA

BW

–3dB Closed Loop Bandwidth

AV = 1, RL = 1kΩ to Half Supply

763

MHz

GBW

Gain-Bandwidth Product

f = 5MHz, RL = 1kΩ to Half Supply

l

700

560

845

MHz

MHz

tON

Turn-On Time

VSHDN = V+ – 2.65V to V+ – 1.6V

900

ns

tOFF

Turn-Off Time

VSHDN = V+ – 1.6V to V+ – 2.65V

500

ns

tS_0.1

Settling Time to 0.1%

AV = 1, VCM = 1V, 1V Output Step,

RL = 1kΩ

31

ns

SR

Slew Rate

AV = +4, 2V Output Step

200

V/μs

FPBW

Full Power Bandwidth

VOUT = 2VP-P, VCM = 1V, AV = –1,

THD < –40dBc

22

MHz

HD2/HD3 Harmonic Distortion, RL = 1kΩ to VCM,

VOUT = 1VP-P, VCM = 1.25V

fC = 100kHz

fC = 1MHz

fC = 5MHz

fC = 10MHz

–106/–127

–110/–128

–82/–105

–77/–96

dBc

dBc

dBc

dBc

Harmonic Distortion, RL = 100Ω to VCM,

VOUT = 1VP-P, VCM = 1.25V

fC = 100kHz

fC = 1MHz

fC = 5MHz

fC = 10MHz

–116/–123

–105/–132

–89/–98

–77/–86

dBc

dBc

dBc

dBc

Note 1: Stresses beyond those listed under Absolute Maximum Ratings

may cause permanent damage to the device. Exposure to any Absolute

Maximum Rating condition for extended periods may affect device

reliability and lifetime.

Note 2: The inputs are protected by back-to-back diodes. If any of

the input or shutdown pins goes 300mV beyond either supply or the

differential input voltage exceeds 0.7V, the input current should be limited

to less than 10mA.

Note 3: A heat sink may be required to keep the junction temperature

below the absolute maximum rating when the output current is high.

Note 4: The LTC6228I/LTC6229I is guaranteed functional and specified

over the temperature range of –40°C to 85°C. The LTC6228H/LTC6229H is

guaranteed functional and specified over the temperature range of –40°C

to 125°C.

Note 5: Supply range voltage is guaranteed by power supply rejection ratio test.

Note 6: The input bias current is the average of the currents through the

non-inverting and inverting input pins.

Note 7: Thermal resistance varies with the amount of PC board metal

connected to the package. The specified values are with short traces

connected to the leads with minimal metal area.

Note 8: Middle 2/3 of the output waveform is observed. RL = 1kΩ at half supply.