Linear LTC6416 Schematic [ru]

LTC6416

2 GHz Low Noise Differential

16-Bit ADC Buffer

FEATURES

2GHz –3dB Small Signal Bandwidth

300MHz ±0.1dB Bandwidth

1.8nV/√Hz Output Noise

46.25dBm Equivalent OIP3 at 140MHz

40.25dBm Equivalent OIP3 Up to 300MHz

–81dBc/–72dBc HD2/HD3 at 140MHz, 2V

–84.5dBc IM3 at 140MHz, 2V

–74dBc/–67.5dBc HD2/HD3 at 300MHz, 2V

–72.5dBc IM3 at 300MHz, 2V

Programmable High Speed, Fast Recovery

Out Composite

P-P

Out Composite

P-P

Output Clamping

DC-Coupled Signal Path

Operates on Single 2.7V to 3.9V Supply

Low Power: 150mW on 3.6V

2mm × 3mm 10-Pin DFN Package

APPLICATIONS

Differential ADC Driver

IF Sampling Receivers

Impedance Transformer

SAW Filter Interface

CCD Buffer

Out

P-P

Out

DESCRIPTION

The LTC®6416 is a differential unity gain buffer designed to drive 16-bit ADCs with extremely low output noise and excellent linearity beyond 300MHz. Differential input impedance is 12k, allowing 1:4 and 1:8 transformers to be used at the input to achieve additional system gain.

With no external biasing or gain setting components and a ﬂ ow-through pinout, the LTC6416 is very easy to use. It can be DC-coupled and has a common mode output offset of –40mV. If the input signals are AC-coupled, the LTC6416 input pins are internally biased to provide an output common mode voltage that is set by the voltage on the V

In addition the LTC6416 has high speed, fast recovery clamping circuitry to limit output signal swing. Both the high and low clamp voltages are internally biased to allow maximum output swing but are also user programmable via the CLLO and CLHI pins.

Supply current is nominally 42mA and the LTC6416 operates on supply voltages ranging from 2.7V to 3.9V.

The LTC6416 is packaged in a 10-lead 3mm × 2mm DFN package. Pinout is optimized for placement directly adjacent to Linear’s high speed 12-, 14- and 16-bit ADCs.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners.

pin.

TYPICAL APPLICATION

LTC6416 Driving LTC2208 ADC – 140MHz IF

3.6V

0.1µF

200

0.1µF

CLHI

LTC6416

–

CLLO

GND

50

+ –

680pF

1:8

MINI-CIRCUITS

TCM8-1+

OUT

LTC6416 Driving LTC2208 ADC

with 1:8 Transformer fIN =140MHz,

fS = 130MHz, –1dBFS, PGA = 1

–10

–20 –30

–40

2.2µF

25

–

25

1.5pF

1pF

1.5pF

AIN

–

LTC2208

PGA = 1

CLOCK

(130MHz)

3.3V

6416 TA01a

–50

–60

–70

–80

AMPLITUDE (dBFS)

–90

–100

–110 –120

MEASURED USING DC1257B

WITH MINI-CIRCUIT TCM8-1+

3020

FREQUENCY (MHz)

V+ = 3.6V

HD2 = –94dBc

HD3 = –89.1dBc

SFDR = 89.1dB

SNR = 70.7dB

1:8 TRANSFORMER

40 50

6416 TA01b

6416f

LTC6416

PIN CONFIGURATION ABSOLUTE MAXIMUM RATINGS

(Note 1)

Total Supply Voltage (V+ to GND)................................4V

Input Current (CLLO, CLHI, V

Output Current (OUT

, OUT–) ...........................±22.5mA

, IN+, IN–) ...........±10mA

Operating Temperature Range (Note 2).... –40°C to 85°C

Speciﬁ ed Temperature Range (Note 3) .... –40°C to 85°C

Storage Temperature Range ...................–65°C to 150°C

Junction Temperature ........................................... 150°C

10-LEAD (3mm s 2mm) PLASTIC DFN

JMAX

EXPOSED PAD (PIN 11) IS GND, MUST BE SOLDERED TO PCB

TOP VIEW

CLHI

–

CLLO

DDB PACKAGE

= 150°C, θJA = 76°C/W, θJC = 13.5°C/W

GND

OUT

–

OUT

GND

ORDER INFORMATION

Lead Free Finish

TAPE AND REEL (MINI) TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE

LTC6416CDDB#TRMPBF LTC6416CDDB#TRPBF LDDY LTC6416IDDB#TRMPBF LTC6416IDDB#TRPBF LDDY

10-Lead (3mm × 2mm) Plastic DFN

10-Lead (3mm × 2mm) Plastic DFN TRM = 500 pieces. *Temperature grades are identiﬁ ed by a label on the shipping container. Consult LTC Marketing for parts speciﬁ ed with wider operating temperature ranges.

Consult LTC Marketing for information on lead based ﬁ nish parts. For more information on lead free part marking, go to: http://www.linear.com/leadfree/

For more information on tape and reel speciﬁ cations, go to: http://www.linear.com/tapeandreel/

0°C to 70°C –40°C to 85°C

3.6V ELECTRICAL CHARACTERISTICS

The l denotes the speciﬁ cations which apply over the full operating temperature range, otherwise speciﬁ cations are at TA = 25°C. V+ = 3.6V, GND = 0V, No R CLHI = V+, CLLO = 0V unless otherwise noted. V deﬁ ned as (IN+ – IN–). V

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

is deﬁ ned as (OUT+ + OUT–)/2. V

OUTCM

LOAD

, C

= 6pF. VCM = 1.25V,

LOAD

INDIFF

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input/Output Characteristics

DIFF

TCG

DIFF

SWINGDIFF

SWINGMIN

SWINGMAX

OUT

Differential Input Offset Voltage Drift

TCV

IOCM

Differential Gain V

Differential Gain Temperature Coefﬁ cient Differential Output Voltage Swing V

Output Voltage Swing Low Single-Ended Measurement of OUT+,

Output Voltage Swing High Single-Ended Measurement of OUT+,

Output Current Drive Single-Ended Measurement of OUT+,

Differential Input Offset Voltage IN+ = IN– = 1.25V, VOS = V

Common Mode Offset Voltage, Input to Output

= ±1.2V Differential

INDIFF

, V

OUTDIFF

OUT

DIFF

OUTCM

INDIFF

–

. V

INDIFF

–

. V

INDIFF

–

– V

INCM

= ±2.3V

OUTDIFF

–0.3

–0.4

3.7

3.3

–0.15 0

dB dB

–0.00033 dB/°C

4.2 V

P-P

0.2 0.3

2.15

±20 mA

–5

–10

–65

–75

2.3 V

–0.5 5

1µV/°C

–47 –15

0.35

–5

mV mV

6416f

V V

LTC6416

3.6V ELECTRICAL CHARACTERISTICS

The l denotes the speciﬁ cations which apply over the full operating temperature range, otherwise speciﬁ cations are at T CLHI = V+, CLLO = 0V unless otherwise noted. V deﬁ ned as (IN+ – IN–). V

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

= 25°C. V+ = 3.6V, GND = 0V, No R

is deﬁ ned as (OUT+ + OUT–)/2. V

OUTCM

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

IVR

MIN

Input Voltage Range, IN+, IN–

Deﬁ ned by Output Voltage Swing Test

(Minimum) (Single-Ended)

IVR

MAX

Input Voltage Range IN+, IN–

Deﬁ ned by Output Voltage Swing Test

(Maximum) (Single-Ended)

INDIFF

INCM

Input Bias Current, IN+, IN Differential Input Resistance V Differential Input Capacitance 1 pF Input Common Mode Resistance IN+ = IN– = 0.65V to 1.85V 6 k

–

IN+ = IN– = 1.25V

CMRR Common Mode Rejection Ratio IN

CMRR = (V

Input Noise Voltage Density f = 100kHz 1.8 nV/√Hz Input Noise Current Density f = 100kHz 6.5 pA/√Hz

= ±1.2V

INDIFF

= IN– = 0.65V to 1.85V,

OUTDIFF/GDIFF

/1.2V)

Output Common Mode Voltage Control

INCMDEFAULT

(VCM – V

OUTCMDEFAULT

(VCM – V

OUTCMMIN

OUTCMMAX

CMDEFAULT

VCM

BVCM

VCM Pin Common Mode Gain VCM = 0.65V to 1.85V Default Input Common Mode Voltage V

) Offset Voltage, VCM to V

INCM

Default Output Common Mode Voltage Inputs Floating, VCM Pin Floating

) Offset Voltage, VCM to V

OUTCM

Output Common Mode Voltage Range (Minimum)

Output Common Mode Voltage Range (Maximum)

VCM Pin Default Voltage VCM Pin Input Resistance VCM Pin Input Capacitance 1 pF VCM Pin Bias Current VCM = 1.25V

INCM

OUTCM

. IN+, IN–, VCM Pin Floating

INCM

VCM – V

, VCM = 1.25V

INCM

, VCM = 1.25V

OUTCM

VCM = 0.1V

VCM = 2.7V

DC Clamping Characteristics

CLHIDEFAULT

(CLHI – V

CLLODEFAULT

(CLLO – V

CLHI

CLLO

BCLLO

Default Output Clamp Voltage, High

) Offset Voltage, CLHI to V

OUTCM

Default Output Clamp Voltage, Low

) Offset Voltage, CLLO to V

OUTCM

CLHI Pin Input Resistance V CLHI Pin Bias Current V CLLO Pin Input Resistance V CLLO Pin Bias Current V

OUTCM

CLHI

CLLO

= 2.45V = 2.45V

= 0.275V = 0.275V

Power Supply

Supply Voltage Range Supply Current

PSRR Power Supply Rejection Ratio VS = 2.7V to 3.6V

, C

LOAD

= 6pF. VCM = 1.25V,

LOAD

INDIFF

0.1 V

2.4 V

–15 –5 15 µA

91215k

63.5

59.6

83 dB

0.9 0.96 1.05 V/V

1.3 1.38 1.45 V

–70 –28 70 mV

1.25 1.34 1.45 V –60 15 60 mV

0.37 0.5

0.55

2.3

2.46 V

2.25

1.325 1.36 1.425 V

2.5 3.8 5.1 k

–50 –32 50 µA

2.3 2.45 2.6 V

–55 13 55 mV

0.125 0.265 0.425 V –120 –70 0 mV

3 4.1 5 k

–25 –1 25 µA

1.5 2.3 3.2 k

–25 4.5 25 µA

2.7 3.9 V 33 42 51

mA mA

57.5 80 dB

V V

6416f

LTC6416

3.3V ELECTRICAL CHARACTERISTICS

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

= 25°C. V+ = 3.3V, GND = 0V, No R

is deﬁ ned as (OUT+ + OUT–)/2. V

OUTCM

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Input/Output Characteristics

DIFF

TCG V

OUTDIFF

OUTMIN

OUTMAX

OUT

DIFF

Differential Gain V

Differential Gain Temperature Coefﬁ cient Differential Output Voltage Swing V

Output Voltage Swing Low Single-Ended Measurement of OUT+,

Output Voltage Swing High Single-Ended Measurement of OUT+,

Output Current Drive (Note 4) Single-Ended Measurement of OUT+,

Differential Input Offset Voltage IN+ = IN– = 1.25V, VOS = V

TCVOS Differential Input Offset Voltage Drift V

IOCM

Common Mode Offset Voltage, Input to Output

IVR

MIN

Input Voltage Range, IN+, IN–

= ±1.2V

INDIFF

= ±2.3V

INDIFF

–

OUT

. V

= ±2.3V

INDIFF

–

OUT

. V

= ±2.3V

INDIFF

–

OUT

DIFF

OUTCM

– V

INCM

OUTDIFF

Deﬁ ned by Output Voltage Swing Test

(Minimum) (Single-Ended)

IVR

MAX

Input Voltage Range, IN+, IN–

Deﬁ ned by Output Voltage Swing Test

(Maximum) (Single-Ended)

INDIFF

INCM

Input Bias Current, IN+, IN Differential Input Resistance V Differential Input Capacitance 1 pF Input Common Mode Resistance IN+ = IN– = 0.65V to 1.85V 6 k

–

CMRR Common Mode Rejection Ratio IN

Input Noise Voltage Density f = 100kHz 1.8 nV/√Hz Input Noise Current Density f = 100kHz 6.5 pA/√Hz

IN+ = IN– = 1.25V

= ±1.2V

INDIFF

= IN– = 0.65V to 1.85V = ∆V

CMRR = (V

OUTDIFF/GDIFF

/∆V

INCM

)

Output Common Mode Voltage Control

INCMDEFAULT

VOS (VCM – V V

OUTCMDEFAULT

(VCM – V

OUTCMMIN

OUTCMMAX

CMDEFAULT

VCM

BVCM

VCM Pin Common Mode Gain VCM = 0.65V to 1.85V Default Input Common Mode Voltage V

) Offset Voltage, VCM to V

INCM

Default Output Common Mode Voltage Inputs Floating, VCM Pin Floating

) Offset Voltage, VCM to V

OUTCM

Output Common Mode Voltage (Minimum)

Output Common Mode Voltage (Maximum)

VCM Pin Default Voltage VCM Pin Input Resistance VCM Pin Input Capacitance 1 pF VCM Pin Bias Current VCM = 1.25V

INCM

OUTCM

. IN+, IN–, VCM Pin Floating

INCM

VCM – V

, VCM = 1.25V

INCM

, VCM = 1.25V

OUTCM

VCM = 0.1V

VCM = 2.4V

, C

LOAD

–0.3 –0.4

= 6pF. VCM = 1.25V,

LOAD

–0.15 0

INDIFF

dB dB

–0.00033 dB/°C

3.5

3.2

P-P

0.2 0.3

0.35

2.05

2.2 V

1.95

±20 mA

–5

–10

–0.1 5

mV mV

1µV/°C

–65 –75

–40 –15

–5

mV mV

0.1 V

2.4 V

–15 –4 15 µA

91215k

63.5

59.6

83 dB

0.9 0.96 1.05 V/V

1.2 1.28 1.35 V

–70 –26 70 mV

1.15 1.24 1.35 V –60 14 60 mV

0.34 0.5

0.55

2.05

2.16 V

1.2 1.25 1.3 V

2.5 3.8 5.1 k

–10 0.2 10 µA

V V

6416f

LTC6416

3.3V ELECTRICAL CHARACTERISTICS

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

= 25°C. V+ = 3.3V, GND = 0V, No R

is deﬁ ned as (OUT+ + OUT–)/2. V

OUTCM

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS DC Clamping Characteristics

CLHIDEFAULT

(CLHI – V

CLLODEFAULT

(CLLO – V

CLHI

CLLO

BCLLO

Default Output Clamp Voltage, High

) Offset Voltage, CLHI to V

OUTCM

Default Output Clamp Voltage, Low

) Offset Voltage, CLLO to V

OUTCM

CLHI Pin Input Resistance V CLHI Pin Bias Current V CLLO Pin Input Resistance V CLLO Pin Bias Current V

OUTCM

CLHI

CLLO

= 2.25V = 2.25V

= 0.25V = 0.25V

Power Supply

Supply Voltage Range Supply Current

PSRR Power Supply Rejection Ratio VS = 2.7V to 3.6V

, C

LOAD

= 6pF. VCM = 1.25V,

LOAD

INDIFF

2.1 2.23 2.4 V

–55 4 55 mV

0.1 0.25 0.4 V

–120 –72 0 mV

3 4.1 5 k

–25 –1 25 µA

1.5 2.3 3.2 k

–25 3 25 µA

2.7 3.9 V 33 42 51

57.5 80 dB

mA mA

AC ELECTRICAL CHARACTERISTICS

The l denotes the speciﬁ cations which apply over the full operating temperature range, otherwise speciﬁ cations are at TA = 25°C. V+ = 3.3V and 3.6V unless otherwise noted, GND = 0V, No R C

= 6pF. VCM = 1.25V, CLHI = VCC, CLLO = 0V unless otherwise noted. V

LOAD

(OUT+ + OUT–)/2. V

is deﬁ ned as (IN+ – IN–). V

INDIFF

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

is deﬁ ned as

OUTCM

LOAD

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Differential AC Characteristics

–3dBBW –3dB Bandwidth 200mV

0.1dBBW ±0.1dB Bandwidth 200mV

0.5dBBW ±0.5dB Bandwidth 200mV

Differential 2 GHz

P-P,OUT

Differential 0.3 GHz

P-P,OUT

Differential 1.4 GHz

P-P,OUT

1/f 1/f Noise Corner 25 kHz SR Slew Rate Differential 3.4 V/ns t

S1%

1% Settling Time 2V

Common Mode AC Characteristics (V

–3dBBW

VCMVCM

Pin Small Signal –3dB BW VCM = 0.1V

Pin)

P-P,OUT

, Measured Single-Ended

P-P

1.8 ns

9MHz

at Output

Common Mode Slew Rate Measured Single-Ended at Output 40 V/µs

AC Clamping Characteristics

OVDR

Overdrive Recovery Time 1.9V

P-P,OUT

5ns

AC Linearity 70MHz Signal

HD2 Second Harmonic Distortion V

= 3.3V, VCM = 1.05V, V V+ = 3.3V, VCM = 1.25V, V V+ = 3.6V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

OUTDIFF OUTDIFF OUTDIFF OUTDIFF

= 2V = 2V = 2V = 2V

P-P P-P P-P P-P

–83.5

–71 –78.5 –88.5

dBc dBc dBc dBc

6416f

LTC6416

AC ELECTRICAL CHARACTERISTICS

The l denotes the speciﬁ cations which apply over the full operating temperature range, otherwise speciﬁ cations are at T C

= 6pF. VCM = 1.25V, CLHI = VCC, CLLO = 0V unless otherwise noted. V

LOAD

(OUT+ + OUT–)/2. V

is deﬁ ned as (IN+ – IN–). V

INDIFF

= 25°C. V+ = 3.3V and 3.6V unless otherwise noted, GND = 0V, No R

is deﬁ ned as (OUT+ – OUT–). See DC test circuit schematic.

OUTDIFF

is deﬁ ned as (IN+ + IN–)/2. V

INCM

is deﬁ ned as

OUTCM

SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS

HD3 Third Harmonic Distortion V

IM3 Output Third Order Intermodulation

Distortion

OIP3 Output Third Order Intercept (Equivalent)

(Note 5)

P1dB Output 1dB Compression Point (Equivalent)

= 3.3V, VCM = 1.05V, V V+ = 3.3V, VCM = 1.25V, V V+ = 3.6V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

= 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

V+ = 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

V+ = 3.6V, VCM = 1.25V 14.1 dBm

OUTDIFF OUTDIFF OUTDIFF OUTDIFF

OUTDIFF OUTDIFF

= 2V = 2V = 2V = 2V

= 2V = 2V

P-P P-P P-P P-P

P-P P-P

–73 –60

–94.5

–83

–76.5

–86

42.25 47

(Note 5)

140MHz Signal

HD2 Second Harmonic Distortion V

HD3 Third Harmonic Distortion V

IM3 Output Third Order Intermodulation

Distortion

OIP3 Output Third Order Intercept (Equivalent)

(Note 5)

P1dB Output 1dB Compression Point (Equivalent)

= 3.3V, VCM = 1.05V, V V+ = 3.3V, VCM = 1.25V, V V+ = 3.6V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

= 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

V+ = 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

V+ = 3.6V, VCM = 1.25V 14.1 dBm

OUTDIFF OUTDIFF OUTDIFF OUTDIFF

OUTDIFF OUTDIFF

= 2V = 2V = 2V = 2V

= 2V = 2V

P-P P-P P-P P-P

P-P P-P

–79.5 –75.5

–73 –81

–64 –55 –70 –72

–75

–84.5

41.5

46.25

(Note 5)

300MHz Signal

HD2 Second Harmonic Distortion V

HD3 Third Harmonic Distortion V

IM3 Output Third Order Intermodulation

Distortion

OIP3 Output Third Order Intercept (Equivalent)

(Note 5)

P1dB Output 1dB Compression Point (Equivalent)

= 3.3V, VCM = 1.05V, V V+ = 3.3V, VCM = 1.25V, V V+ = 3.6V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

= 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

V+ = 3.3V, VCM = 1.05V, V V+ = 3.6V, VCM = 1.25V, V

= 3.6V, VCM = 1.25V 12.9 dBm

OUTDIFF OUTDIFF OUTDIFF OUTDIFF

OUTDIFF OUTDIFF

= 2V = 2V = 2V = 2V

= 2V = 2V

P-P P-P P-P P-P

P-P P-P

–75 –65

–69.5

–74 –59

–51.5

–63

–67.5 –68.5

–72.5 –64

38.25

40.25

(Note 5)

LOAD

dBc dBc dBc dBc

dBc dBc

dBm dBm

dBc dBc dBc dBc

dBc dBc

dBm dBm

dBc dBc dBc dBc

dBc dBc

dBm dBm

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 LTC6416C/LTC6416I is guaranteed functional over the operating temperature range of –40°C to 85°C.

Note 3: The LTC6416C is guaranteed to meet speciﬁ ed performance from 0°C to 70°C. It is designed, characterized and expected to meet speciﬁ ed performance from –40°C and 85°C but is not tested or QA sampled

at these temperatures. The LT6416I is guaranteed to meet speciﬁ ed performance from –40°C to 85°C.

Note 4: This parameter is pulse tested. Note 5: Since the LTC6416 is a voltage-output buffer, a resistive load is not

required when driving an AD converter. Therefore, typical output power is very small. In order to compare the LTC6416 with ampliﬁ ers that require a 50 output load, the LTC6416 output voltage swing driving a given R

is converted

to OIP3 and P1dB as if it were driving a 50 load. Using this modiﬁ ed convention, 2V

is by deﬁ nition equal to 10dBm, regardless of actual RL.

P-P

6416f

TYPICAL PERFORMANCE CHARACTERISTICS

LTC6416

Differential Forward Gain (S21) vs Frequency

V+ = 3.3V

–2

–4

–6

–8

–10

DIFFERENTIAL GAIN (dB)

–12

–14

–16

10 1000 10000100

FREQUENCY (MHz)

Differential Reverse Isolation (S12) vs Frequency

–20

V+ = 3.3V

–30

–40

–50

–60

–70

–80

–90

DIFFERENTIAL REVERSE ISOLATION (dB)

–100

10 1000100

FREQUENCY (MHz)

6416 G01

6416 G04

Differential Input Return Loss (S11) vs Frequency

V+ = 3.3V

–5

–10

–15

–20

S11 (dB)

–25

–30

–35

10 1000100

FREQUENCY (MHz)

Second and Third Harmonic Distortion vs Frequency

–50

–60

–70

–80

HD2, HD3 (dBc)

V+ = 3.3V

–90

= 1.25V

= 400

LOAD

= 2V

–100

OUT

DIFFERENTIAL

P-P

FREQUENCY (MHz)

100

HD3

HD2

6416 G02

6416 G05

500

Differential Output Return Loss (S22) vs Frequency

V+ = 3.3V

–1

–2

–3

–4

–5

–6

–7

–8

–9

DIFFERENTIAL OUTPUT RETURN LOSS (dB)

–10

10 1000100

FREQUENCY (MHz)

Second and Third Harmonic Distortion vs Frequency

–50

V+ = 3.6V

= 1.25V

= 400

LOAD

–60

–70

–80

HD2, HD3 (dBc)

–90

–100

= 2V

OUT

10 100 500

DIFFERENTIAL

P-P

FREQUENCY (MHz)

HD3

HD2

6416 G03

6416 G06

6416f

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