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LMH6642, LMH6643, LMH6644

www.ti.com

SNOS966P –MAY 2001–REVISED MARCH 2013

LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers

Check for Samples: LMH6642, LMH6643, LMH6644

FEATURES

DESCRIPTION

The LMH664X family true single supply voltage

= ±5V, T

= 25°C, R

= 2kΩ, A

= +1. Typical

feedback amplifiers offer high speed (130MHz), low

Values Unless Specified).

distortion (−62dBc), and exceptionally high output

• −3dB BW (A

= +1) 130MHz

current (approximately 75mA) at low cost and with

• Supply Voltage Range 2.7V to 12.8V

reduced power consumption when compared against

existing devices with similar performance.

• Slew Rate

(1)

, (A

= −1) 130V/µs

Input common mode voltage range extends to 0.5V

• Supply Current (no load) 2.7mA/amp

below V

−

and 1V from V

. Output voltage range

• Output Short Circuit Current +115mA/−145mA

extends to within 40mV of either supply rail, allowing

• Linear Output Current ±75mA

wide dynamic range especially desirable in low

• Input Common Mode Volt. 0.5V Beyond V

−

, 1V

voltage applications. The output stage is capable of

approximately 75mA in order to drive heavy loads.

from V

Fast output Slew Rate (130V/µs) ensures large peak-

• Output Voltage Swing 40mV from Rails

to-peak output swings can be maintained even at

• Input Voltage Noise (100kHz) 17nV/√Hz

higher speeds, resulting in exceptional full power

• Input Current Noise (100kHz) 0.9pA/√Hz

bandwidth of 40MHz with a 3V supply. These

characteristics, along with low cost, are ideal features

• THD (5MHz, R

= 2kΩ, V

= 2V

, A

= +2)

for a multitude of industrial and commercial

−62dBc

applications.

• Settling Time 68ns

Careful attention has been paid to ensure device

• Fully Characterized for 3V, 5V, and ±5V

stability under all operating voltages and modes. The

• Overdrive Recovery 100ns

result is a very well behaved frequency response

characteristic (0.1dB gain flatness up the 12MHz

• Output Short Circuit Protected

(2)

under 150Ω load and A

= +2) with minimal peaking

• No Output Phase Reversal with CMVR

(typically 2dB maximum) for any gain setting and

Exceeded

under both heavy and light loads. This along with fast

settling time (68ns) and low distortion allows the

APPLICATIONS

device to operate well in ADC buffer, and high

frequency filter applications as well as other

• Active Filters

applications.

• CD/DVD ROM

This device family offers professional quality video

• ADC Buffer Amp

performance with low DG (0.01%) and DP (0.01°)

• Portable Video

characteristics. Differential Gain and Differential

• Current Sense Buffer

Phase characteristics are also well maintained under

heavy loads (150Ω) and throughout the output

(1) Slew rate is the average of the rising and falling slew rates.

voltage range. The LMH664X family is offered in

(2) Output short circuit duration is infinite for V

< 6V at room

single (LMH6642), dual (LMH6643), and quad

temperature and below. For V

> 6V, allowable short circuit

duration is 1.5ms. (LMH6644) options.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.

Summary of content (32 pages)

PAGE 1
LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 LMH6642/LMH6643/LMH6644 Low Power, 130MHz, 75mA Rail-to-Rail Output Amplifiers Check for Samples: LMH6642, LMH6643, LMH6644 FEATURES 1 (VS = ±5V, TA = 25°C, RL = 2kΩ, AV = +1. Typical Values Unless Specified). 2 • • • • • • • • • • • • • • • • −3dB BW (AV = +1) 130MHz Supply Voltage Range 2.7V to 12.8V Slew Rate (1), (AV = −1) 130V/µs Supply Current (no load) 2.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Closed Loop Gain vs. Frequency for Various Gain VS = ±1.5V +2 AV = +1 +1 0 2.0 -1 0.0 AV = +10 -3 2VPP ±5V 4.0 VOUT = 0.2VPP -2 ±2.5V 6.0 RL = 2k GAIN (dB) NORMALIZED GAIN (dB) Large Signal Frequency Response 8.0 +3 4VPP AV = +5 AV = +2 RF = RL = 2k AV = +2 10k 100k 1M 10M 100M 500M 100k 1M 10M 200M FREQUENCY (Hz) FREQUENCY (Hz) Figure 1. Figure 2.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 Operating Ratings (1) Supply Voltage (V+ – V−) 2.7V to 12.8V Junction Temperature Range (2) Package Thermal Resistance (2) (1) (2) −40°C to +85°C (θJA) 5-Pin SOT-23 265°C/W 8-Pin SOIC 190°C/W 8-Pin VSSOP 235°C/W 14-Pin SOIC 145°C/W 14- Pin TSSOP 155°C/W Absolute Maximum Ratings indicate limits beyond which damage to the device may occur.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com 3V Electrical Characteristics (continued) Unless otherwise specified, all limits guaranteed for at TJ = 25°C, V+ = 3V, V− = 0V, VCM = VO = V+/2, VID (input differential voltage) as noted (where applicable) and RL = 2kΩ to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter CIN Common Mode Input Capacitance CMVR Input Common-Mode Voltage Range Conditions Min (1) Typ (2) CMRR ≥ 50dB −0.5 1.8 1.6 2.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 5V Electrical Characteristics (continued) Unless otherwise specified, all limits guaranteed for at TJ = 25°C, V+ = 5V, V− = 0V, VCM = VO = V+/2, VID (input differential voltage) as noted (where applicable) and RL = 2kΩ to V+/2. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions CT Rej. Cross-Talk Rejection f = 5MHz, Receiver: Rf = Rg = 510Ω, AV = +2 TS Settling Time VO = 2VPP, ±0.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com ±5V Electrical Characteristics Unless otherwise specified, all limits guaranteed for at TJ = 25°C, V+ = 5V, V− = −5V, VCM = VO = 0V, VID (input differential voltage) as noted (where applicable) and RL = 2kΩ to ground. Boldface limits apply at the temperature extremes. Symbol Parameter Conditions BW −3dB BW AV = +1, VOUT = 200mVPP Min Typ 95 130 (1) (2) AV = +2, −1, VOUT = 200mVPP 46 Max (1) Units MHz BW0.1dB 0.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 ±5V Electrical Characteristics (continued) Unless otherwise specified, all limits guaranteed for at TJ = 25°C, V+ = 5V, V− = −5V, VCM = VO = 0V, VID (input differential voltage) as noted (where applicable) and RL = 2kΩ to ground. Boldface limits apply at the temperature extremes.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics At TJ = 25°C, V+ = +5, V− = −5V, RF = RL = 2kΩ. Unless otherwise specified. Closed Loop Frequency Response for Various Supplies Closed Loop Gain vs. Frequency for Various Gain +3 VS = ±1.5V +2 VS = ±2.5V -1 GAIN (dB) NORMALIZED GAIN (dB) 0 VS = ±5V -2 -3 VS = ±1.5V VS = ±2.5V VS = ±5V AV = +1 RL = 2k +1 VS = ±5V RL = 2k VOUT = 0.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. Large Signal Frequency Response 8.0 8.0 ±2.5V 6.0 4.0 4VPP ±5 V 2.0 GAIN (dB) 2.0 ±1.5V 6.0 2VPP ±5V 4.0 GAIN (dB) Closed Loop Small Signal Frequency Response for Various Supplies 0.0 0.0 ±2.5V VO = 0.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. VOUT (VPP) for THD < 0.5% Open Loop Gain/Phase for Various Temperature 80 10 85°C 9 RL = 2K 8 60 GAIN (dB) VOUT (VPP) 6 5 4 PHASE (Deg) PHASE 7 40 60 GAIN 20 40 -40°C 20 3 RL = 100: 2 0 VS = ±5V 1 AV = -1 0 100k 1M 10M 100M 0 VS = ±1.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. HD3 vs. Output Swing THD (dBc) vs. Output Swing -90 -80 100:,1MHz VS = 5V -70 -70 AV = -1 -65 THD (dBc) HD3 (dBc) RL = 2k TO VS/2 -75 -80 2k:,5MHz -60 2k:,10MHz -50 -60 5MHz -55 -50 -45 100:, 5MHz -40 -40 -30 VS = 5V, AV = +2 RL = 2k: &100: to VS/2 100:, 10MHz -20 0.0 1.0 2.0 3.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. VOUT from V− vs. ISINK VOUT from V+ vs. ISOURCE 10 10 VS = ±5V VS = ±5V 85°C -40°C VOUT FROM V (V) 1 1 - + VOUT FROM V (V) 25°C 85° C 0.1 -40°C 85°C 0.1 -40°C 25°C 0.01 0.01 1 10 100 1 1k 10 ISOURCE (mA) Figure 31. Swing vs. VS Short Circuit Current (to VS/2) vs.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. Closed Loop Output Impedance vs. Frequency AV = +1 PSRR vs. Frequency 1000 90 AV = +1 VS = 5V 80 100 AV = +10 70 + PSRR 10 PSRR (dB) ZOUT (:) 60 1 50 40 - PSRR 30 20 0.1 10 0.01 1k 0 10k 100k 100M 10M 1M 10k 100k 10M 100M Figure 37. Figure 38. CMRR vs.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. VOS vs. VS (for 3 Representative Units) VOS vs. VS (for 3 Representative Units) 1 1 -40°C 0.8 0.8 Unit #1 0.6 0.6 0.4 0.4 0.2 0.2 VOS (mV) VOS (mV) Unit #1 0 -0.2 25°C 0 Unit #2 -0.2 Unit #2 -0.4 -0.4 Unit #3 -0.6 -0.6 Unit #3 -0.8 -0.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. IS vs. VS Small Signal Step Response 4 VS = 3V VO = 100mVPP 85°C IS (mA) (PER CHANNEL) RL = 2k to VS/2 AV = -1 3 25°C 2 -40°C 1 20 ns/DIV 40 mV/DIV 2 4 6 8 10 12 VS (V) Figure 49. Figure 50.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) − + At TJ = 25°C, V = +5, V = −5V, RF = RL = 2kΩ. Unless otherwise specified. Small Signal Step Response Small Signal Step Response VS = ±5V VS = ±5V VO = 200mVPP AV = +2, RL = 2k VO = 100mVPP RL = 2k AV = -1 40 mV/DIV 20 ns/DIV 20.0 ns/DIV 40 mV/DIV Figure 55. Figure 56.
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 APPLICATION INFORMATION CIRCUIT DESCRIPTION The LMH664X family is based on proprietary VIP10 dielectrically isolated bipolar process. This device family architecture features the following: • Complimentary bipolar devices with exceptionally high ft (∼8GHz) even under low supply voltage (2.7V) and low bias current.
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LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com VIN (1 V/DIV) VS=±5V, VIN=5VPP VOUT (2 V/DIV) AV=+5, RF=RL=2k 100 ns/DIV 2 V/DIV Figure 61. Overload Recovery Waveform INPUT AND OUTPUT TOPOLOGY All input / output pins are protected against excessive voltages by ESD diodes connected to V+ and V-rails (see Figure 62). These diodes start conducting when the input / output pin voltage approaches 1Vbe beyond V+ or Vto protect against over voltage.
PAGE 19
LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 No matter how low an Rf is selected, there is a need for Cf in order to stabilize the circuit. The reason for this is that the Op Amp input capacitance and Q1 equivalent collector capacitance together (CIN) will cause additional phase shift to the signal fed back to the inverting node. Cf will function as a zero in the feedback path counteracting the effect of the CIN and acting to stabilized the circuit.
PAGE 20
LMH6642, LMH6643, LMH6644 SNOS966P – MAY 2001 – REVISED MARCH 2013 www.ti.com PRINTED CIRCUIT BOARD LAYOUT AND COMPONENT VALUES SECTION Generally, a good high frequency layout will keep power supply and ground traces away from the inverting input and output pins. Parasitic capacitances on these nodes to ground will cause frequency response peaking and possible circuit oscillations (see Application Note OA-15 for more information).
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LMH6642, LMH6643, LMH6644 www.ti.com SNOS966P – MAY 2001 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision O (March 2013) to Revision P • Page Changed layout of National Data Sheet to TI format ..........................................................................................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 9-Nov-2013 PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device. (2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant LMH6642MAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMH6642MF SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.0 Q3 LMH6642MF/NOPB SOT-23 DBV 5 1000 178.0 8.4 3.2 3.2 1.4 4.0 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 23-Sep-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LMH6642MAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LMH6642MF SOT-23 DBV 5 1000 210.0 185.0 35.0 LMH6642MF/NOPB SOT-23 DBV 5 1000 210.0 185.0 35.0 LMH6642MFX/NOPB SOT-23 DBV 5 3000 210.0 185.0 35.0 LMH6643MAX SOIC D 8 2500 367.0 367.0 35.0 LMH6643MAX/NOPB SOIC D 8 2500 367.0 367.0 35.
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