Intersil Corporation HA4600 Datasheet

HA4600

Data Sheet June 2000 File Number 3990.6

480MHz, SOT-23, Video Buffer with Output Disable

The HA4600 is a very wide bandwidth, unity gain bufferideal for professional video switching, HDTV, computer monitor routing, and other high performance applications. The circuit features very low power dissipation (105mW Enabled, 1mW Disabled), excellent differential gain and phase, and very high off isolation. When disabled, the output is switched to a high impedance state, making the HA4600 ideal for routing matrix equipment and video multiplexers.

The HA4600alsofeaturesfastswitching and symmetric slew rates. A typical application for the HA4600 is interfacing Intersil’s wide range of video crosspoint switches.

For applications requiring a tally output (enable indicator), please refer to the HA4201 data sheet.

Pinouts

HA4600

(PDIP, SOIC)

TOP VIEW

V+

OUT

V-

GND

V-

HA4600

(SOT-23)

TOP VIEW

GND

OUT

V+

Features

• Micro Package Available. . . . . . . . . . . . . . . . . . . . SOT-23

• Low Power Dissipation . . . . . . . . . . . . . . . . . . . . . 105mW

• Symmetrical Slew Rates . . . . . . . . . . . . . . . . . . 1700V/µs

• 0.1dB Gain Flatness. . . . . . . . . . . . . . . . . . . . . . .250MHz

• Off Isolation (100MHz) . . . . . . . . . . . . . . . . . . . . . . . 85dB

• Differential Gain and Phase . . . . . . . 0.01%/0.01 Degrees

• High ESD Rating . . . . . . . . . . . . . . . . . . . . . . . . . >1800V

• TTL Compatible Enable Input

• Improved Replacement for GB4600

Applications

• Professional Video Switching and Routing

• Video Multiplexers

• HDTV

• Computer Graphics

• RF Switching and Routing

• PCM Data Routing

Ordering Information

PART NUMBER

(BRAND)

HA4600CP 0 to 70 8 Ld PDIP E8.3 HA4600CB

(H4600CB) HA4600CB96

(H4600CB) HA4600CH96

(4600)

TEMP.

RANGE (oC) PACKAGE

0 to 70 8 Ld SOIC M8.15

0 to 70 8 Ld SOIC Tape

and Reel

0 to 70 6Ld SOT-23 Tape

and Reel

PKG.

NO.

M8.15

P6.064

Truth Table

EN OUT

0 High Z 1 Active

3-1

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

HA4600

Absolute Maximum Ratings Thermal Information

Voltage Between V+ and V-. . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V

Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V

Digital Input Current (Note 2). . . . . . . . . . . . . . . . . . . . . . . . . ±25mA

Output Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mA

ESD Rating

Human Body Model (Per MIL-STD-883 Method 3015.7) . . . . 1800V

SUPPLY

Operating Conditions

Temperature Range. . . . . . . . . . . . . . . . . . . . . . . . . . . 0oC to 70oC

CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation of the device at these or any other conditions above those indicated in the operational sections of this speciﬁcation is not implied.

NOTES:

1. θJA is measured with the component mounted on an evaluation PC board in free air.

2. If an input signal is applied before the supplies are powered up, the input current must be limited to this maximum value.

Thermal Resistance (Typical, Note 1) θJA (oC/W)

PDIP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130

SOIC Package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170

SOT-23 Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Maximum Junction Temperature (Die) . . . . . . . . . . . . . . . . . . . 175oC

Maximum Junction Temperature (Plastic Package) . . . . . . . 150oC

Maximum Storage Temperature Range. . . . . . . . . . -65oC to 150oC

Maximum Lead Temperature (Soldering 10s) . . . . . . . . . . . . 300oC

(SOIC and SOT-23 - Lead Tips Only)

Electrical Speciﬁcations V

PARAMETER TEST CONDITIONS TEMP. (oC) MIN TYP MAX UNITS

DC SUPPLY CHARACTERISTICS

Supply Voltage Full ±4.5 ±5.0 ±5.5 V Supply Current (V

ANALOG DC CHARACTERISTICS

Output Voltage Swing without Clipping V

Output Current Full 15 20 - mA Input Bias Current Full - 30 50 µA Output Offset Voltage 25 -10 - 10 mV Output Offset Voltage Drift (Note 3) Full - 25 50 µV/oC

SWITCHING CHARACTERISTICS

Turn-On Time 25 - 160 - ns

= 0V) VEN= 2V 25, 70 - 10.5 13 mA

OUT

= ±5V, RL = 10kΩ, VEN= 2.0V, Unless Otherwise Speciﬁed

SUPPLY

VEN= 2V 0 - - 14.5 mA VEN= 0.8V 25, 70 - 100 115 µA VEN= 0.8V 0 - 100 125 µA

OUT=VIN

± VIO± 20mV 25, 70 ±2.7 ±2.8 - V

0 ±2.4 ±2.5 - V

Turn-Off Time 25 - 320 - ns

DIGITAL DC CHARACTERISTICS

Input Logic High Voltage Full 2 - - V Input Logic Low Voltage Full - - 0.8 V EN Input Current 0V to 4V Full -2 - 2 µA

AC CHARACTERISTICS

Insertion Loss 1V

-3dB Bandwidth RS=82Ω, CL= 10pF 25 - 480 - MHz

P-P

RS=43Ω, CL= 15pF 25 - 380 - MHz RS=36Ω, CL= 21pF 25 - 370 - MHz

Full - 0.04 0.05 dB

3-2

HA4600

Electrical Speciﬁcations V

PARAMETER TEST CONDITIONS TEMP. (oC) MIN TYP MAX UNITS

±0.1dB Flat Bandwidth RS=82Ω, CL= 10pF 25 - 250 - MHz

Input Resistance Full 200 400 - kΩ Input Capacitance Full - 1.0 - pF Enabled Output Resistance Full - 15 - Ω Disabled Output Capacitance VEN= 0.8V Full - 2.0 - pF Differential Gain (Note 3) 4.43MHz 25 - 0.01 0.02 % Differential Phase (Note 3) 4.43MHz 25 - 0.01 0.02 Degrees Off Isolation 1V

Slew Rate (1.5V

Total Harmonic Distortion (Note 3) Full - 0.01 0.1 %

, +SR/-SR) RS=82Ω, CL= 10pF 25 - 1750/1770 - V/µs

P-P

= ±5V, RL = 10kΩ, VEN= 2.0V, Unless Otherwise Speciﬁed (Continued)

SUPPLY

RS=43Ω, CL= 15pF 25 - 175 - MHz RS=36Ω, CL= 21pF 25 - 170 - MHz

, 100MHz,

P-P

VEN= 0.8V, RL=10Ω

RS=43Ω, CL= 15pF 25 - 1460/1360 - V/µs RS=36Ω, CL= 21pF 25 - 1410/1360 - V/µs

Full - 85 - dB

Disabled Output Resistance Full - 12 - MΩ

NOTE:

3. This parameter is not tested. The limits are guaranteed based on lab characterization, and reflect lot-to-lot variation.

AC Test Circuit

Application Information

General

10kΩ

510Ω

75Ω

HFA1100

OUT

400Ω

HA4600

75Ω

NOTE: CL = CX + Test Fixture Capacitance.

500Ω

PC Board Layout

The frequency response of this circuit depends greatly on the care taken in designing the PC board. The use of low

inductance components such as chip resistors and chip capacitors is strongly recommended, while a solid ground plane is a must!

Attention should be given to decoupling the power supplies. A large value (10µF) tantalum in parallel with a small value (0.1µF) chip capacitor works well in most cases.

Keep input and output traces as short as possible, because trace inductance and capacitance can easily become the performance limiting items.

The HA4600 is a unity gain buffer that is optimized for high performance video applications. The output disable function makes it ideal for the matrix element in small, high input-tooutput isolation switchers and routers. This buffer contains no feedback or gain setting resistors, so the output is a true high impedance load when the IC is disabled (EN = 0). The HA4600 also excels as an input bufferfor routers with a large number of outputs (i.e. each input must connect to a large number of outputs) and delivers performance superior to most video amplifiers at a fraction of the cost. As an input buffer, the HA4600’s low input capacitance and high input resistance provide excellent video terminations when used with an external 75Ωresistor.

Frequency Response

Most applications utilizing the HA4600 require a series output resistor, R capacitance, C as C

increases (as shown in the Electrical Speciﬁcation

table), so give careful consideration to component placement to minimize trace length. As an example, -3dB bandwidth decreases to 160MHz for C In big matrix conﬁgurations where C

, to tune the response for the speciﬁc load

, driven. Bandwidth and slew rate degrade

= 100pF, RS=0Ω.

is large, better

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