5

LT5514

5514f

(Low Power Mode)

inputs and differential outputs, unless otherwise noted. (Note 7) (Test circuits shown in Figures 9 and 10)

AC ELECTRICAL CHARACTERISTICS

Note 1: Absolute Maximum Ratings are those values beyond which the life

of the device may be impaired.

Note 2: All voltage values are with respect to ground.

Note 3: Default state for open PGA inputs.

mode voltage is as specified when resistors are used. For choke inductors

Note 6: Internally generated common mode input bias voltage requires

capacitive or transformer coupling to the signal source.

Note 7: Specifications over the –40

°C to 85°C operating temperature

range are assured by design, characterization and correlation with

statistical process controls. Gain always refers to power gain. Input

dBm figures are with respect to 50

Ω.

Note 8: High frequency operation is limited by the RC time constants at

the input and output ports. The low frequency (LF) roll-off is set by I/O

interface choice.

Note 9: Limited by package and board isolation.

Note 10: See “Clipping Free Operation” in the Applications Information

section. Refer to Figure 7.

SYMBOL

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Dynamic Performance

BW

Large-Signal –3dB Bandwidth

All Gain Settings (Note 8),

LF to 540

MHz

All Gain Settings, Single Tone,

16

dBm

Output Power

Amplifier Transconductance

0.15

S

S12

Reverse Isolation

–92

dB

Distortion and Noise

OIP3

Output Third Order Intercept Point for

PGA0 = High (PGA1, PGA2, PGA3 Any State)

+40

dBm

Output Third Order Intercept Point for

PGA0 = Low (PGA1, PGA2, PGA3 Any State)

+36

dBm

HD2

Second Harmonic Distortion

–76

dBc

HD3

Third Harmonic Distortion

–72

dBc

Output Noise Floor

–138

dBm/Hz

(PGAO, PGA2, PGA3 Any State)

–140

dBm/Hz

NF

Noise Figure

8.6

dB

Amplifier Power Gain and Gain Step

Maximum Gain

27

dB

Minimum Gain

4.5

dB

Gain Step Size

1.05

1.5

1.95

dB

Gain Step Accuracy

±0.1

dB

Amplifier I/O Impedance

Input Resistance

122

Ω

Differentially

Input Capacitance

2

pF

Differentially

Output Resistance

5

k

Ω

Differentially

Output Capacitance

1.7

pF

Differentially