Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Voltage feedback SOIC 8

Note: Supply and Bypassing not shown.

1/2

LMH6672

Rf1

Rf2

1/2

LMH6672

12.5

1:N

(1.2)

12.5

)

OUT

= 100:

OUT B

4 5

OUT A

-IN A

+IN A

-IN B

+IN B

LMH6672

www.ti.com

SNOS957G –APRIL 2001–REVISED MARCH 2013

LMH6672 Dual, High Output Current, High Speed Op Amp

Check for Samples: LMH6672

FEATURES

APPLICATIONS

• High Output Drive

• ADSL PCI Modem Cards

– 19.2 V

Differential Output Voltage, • xDSL External Modems

= 50Ω

• Line Drivers

– 9.6 V

Single-ended Output Voltage,

= 25Ω DESCRIPTION

The LMH6672 is a low cost, dual high speed op amp

• High Output Current

capable of driving signals to within 1V of the power

– ±200 mA @ V

= 9 V

, V

= 12V

supply rails. It features the high output drive with low

• Low Distortion

distortion required for the demanding application of a

single supply xDSL line driver.

– 105 dB SFDR @ 100 kHz, V

= 8.4 V

= 25Ω

When connected as a differential output driver, the

– 98 dB SFDR @ 1MHz, V

= 2 V

LMH6672 can drive a 50Ω load to 16.8 V

swing

= 100Ω

with only −98 dBc distortion, fully supporting the peak

upstream power levels for upstream full-rate ADSL.

• High Speed

The LMH6672 is fully specified for operation with 5V

– 90 MHz 3 dB Bandwidth (G = 2)

and 12V supplies. Ideal for PCI modem cards and

– 135 V/µs Slew Rate

xDSL modems.

• Low Noise

– 3.1 nV/√Hz: Input Noise Voltage

– 1.8 pA/√Hz: input noise current

• Low Supply Current: 7.2mA/amp

• Single-supply Operation: 5V to 12V

• Available in 8-pin SOIC and SO PowerPAD

(DDA)

Connection Diagram and Typical Application

Figure 1. 8-Pin SOIC / SO PowerPAD (DDA) Figure 2. Typical Application

(Top View)

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 (23 pages)

PAGE 1
LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 LMH6672 Dual, High Output Current, High Speed Op Amp Check for Samples: LMH6672 FEATURES APPLICATIONS • • • • 1 2 • • • • • • • High Output Drive – 19.2 VPP Differential Output Voltage, RL = 50Ω – 9.6 VPP Single-ended Output Voltage, RL = 25Ω High Output Current – ±200 mA @ VO = 9 VPP, VS = 12V Low Distortion – 105 dB SFDR @ 100 kHz, VO = 8.
PAGE 2
LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) ESD Tolerance (2) Human Body Model Machine Model VIN Differential ±1.2V See (3) Output Short Circuit Duration + − Supply Voltage (V − V ) 13.2V V+ +0.8V, V− −0.
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LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 Electrical Characteristics TJ = 25°C, G = +2, VS = ±2.5 to ±6V, RF = RIN = 470Ω, RL = 100Ω; Unless otherwise specified. Symbol Parameter Conditions Min (1) Typ (2) Max (1) Units Dynamic Performance −3dB Bandwidth 90 MHz 0.1dB Bandwidth VS = ±6V 12 MHz Slew Rate VS = ±6V, 4V Step, 10-90% 135 V/µs Rise and Fall Time VS = 6V, 4V Step, 10-90% 23.5 ns VO = 8.4 VPP, f = 100 kHz, RL = 25Ω −105 dBc VO = 8.
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LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com ±2.5V Electrical Characteristics TJ = 25°C, G = +2, VS = ±2.5 to ±6V, RF = RIN = 470Ω, RL = 100Ω; Unless otherwise specified. Symbol Parameter Conditions Min (1) Typ (2) Max (1) Units Dynamic Performance −3 dB Bandwidth 80 MHz 0.
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LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 Typical Performance Characteristics Output Swing RL = 25Ω, 1 kΩ @ −40°C, 25°C, 85°C Positive Output Swing into 1kΩ 1.2 14 -40°C 1k: 12 1.0 VSUPPLY - VOUT (V) SWING (V) 10 25: 8 6 4 0.8 85°C 25°C 0.6 0.4 0.2 2 0 0 0 2 4 6 8 10 12 0 14 1 2 3 4 5 6 7 ±VSUPPLY (V) VS (V) Figure 3. Figure 4. Negative Output Swing into 1 kΩ Positive Output Swing into 25Ω 1.0 1.6 -40°C 0.9 1.4 -40°C 1.2 0.
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LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) −VOUT vs. ILOAD +VOUT vs. ILOAD 5.5 2.0 5.4 5.3 1.8 85°C 1.7 +VOUT (V) 5.2 -VOUT (V) VS = ±2.5V 1.9 VS = ±6V 5.1 5.0 4.9 4.8 1.6 85°C 1.5 1.4 1.3 25°C 25°C 4.7 1.2 -40°C 4.6 1.1 4.5 1.0 0 50 100 150 200 250 -40°C 0 50 100 ILOAD (mA) 150 200 250 ILOAD (mA) Figure 9. Figure 10. −VOUT vs. ILOAD Supply Current vs. Supply Voltage 16 2.0 85°C 1.9 VS = ±2.
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LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) VOS vs. VS VOS vs. VCM, VS = 12V 1 3 2 0.5 -40°C VOS (mV) VOS (mV) 1 25°C -40°C 0 25°C 0 85°C -1 -0.5 85°C -2 -1 3 4 5 6 -3 -0.5 1 9 10 11 12 13 14 15 7 8 2.5 4 VS (V) 7 8.5 10 11.5 13 VCM (V) Figure 15. Figure 16. VOS vs. VCM, VS = 5V Bias Current vs. VSUPPLY 10 3 85°C 25°C INPUT BIAS CURRENT (PA) 2 -40°C 1 VOS (mV) 5.
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LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) VOUT vs. VIN 2 -55 HARMONIC DISTORTION (dBc) -45 1 VIN (mV) Harmonic Distortion vs. Load 3 -40°C 25°C 0 -1 85°C -2 RL = 25: VS = ±6V f = 1 MHz VOUT = 2 VPP -65 -75 -85 2ND -95 -105 3RD -3 -2.5 -2 -1.5 -1 -0.5 0 0.5 1 1.5 2 2.5 -115 0 100 200 VOUT (V) Figure 21. 400 500 Figure 22. Harmonic Distortion vs. Load Harmonic Distortion vs. Output Voltage -45 -45 VS = ±2.
PAGE 9
LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Harmonic Distortion vs. Output Voltage Harmonic Distortion vs. Output Voltage -55 VS = ±2.5V f = 1 MHz -55 HARMONIC DISTORTION (dBc) HARMONIC DISTORTION (dBc) -45 RL = 25: -65 -75 2ND -85 -95 3RD -105 VS = ±6V -65 f = 100 kHz -75 -85 -95 2ND -105 -115 3RD -115 0.0 -125 0.5 1.0 2.0 1.5 2.5 3.0 0 1 OUTPUT VOLTAGE PEAK TO PEAK 2 3 Figure 26.
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LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) Harmonic Distortion vs. Frequency Pulse Response, VS= ±6V -30 -40 VS = ±2.5V RL = 25: VOUT = 2 VPP -50 1 V/DIV 2ND -60 -70 0 -80 -90 -100 -110 40 mV/DIV -120 0.1 3RD 1 10 FREQUENCY (MHz) 20 ns/DIV 100 Figure 32. Figure 33. Pulse Response, VS= ±2.5V, ±6V Pulse Response, AVCL = −1, VS= ±6V 1 V/DIV HARMONIC DISTORTION (dBc) -20 0 0 20 ns/DIV 20 ns/DIV Figure 34. Figure 35.
PAGE 11
LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 Typical Performance Characteristics (continued) Frequency Response, AVCL = +5V Frequency Response, AVCL = +10V 17 26 14 23 11 20 31 MHz 8 17 12V 3 2 14 GAIN (dB) GAIN (dB) 13 MHz 5 11 8 -1 12V 5 5V -4 2 -7 -1 5V -10 100k 1M 10M -4 100k 100M 1M FREQUENCY (Hz) Figure 38. CMRR vs. Frequency @ 5V 120 120 100 100 80 80 CMRR (dB) CMRR (dB) 100M Figure 39. CMRR vs.
PAGE 12
LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) en & in vs. Frequency, VS = 5V and 12V 100 10 10 en CURRENT NOISE (pA/ Hz) VOLTAGE NOISE (nV/ Hz) 100 in 1 100 1k 10k 100k 1M 1 10M FREQUENCY (Hz) Figure 44. Application Notes THERMAL MANAGEMENT The LMH6672 is a high-speed, high power, dual operational amplifier with a very high slew rate and very low distortion. For ease of use, it uses conventional voltage feedback.
PAGE 13
LMH6672 www.ti.com SNOS957G – APRIL 2001 – REVISED MARCH 2013 To maintain low distortion, in a Class AB output stage, an idle current, IQ, is maintained through the output transistors when there is little or no output signal. In the LMH6672, about 4.8 mA of the total quiescent supply current of 14.4 mA flows through the output stages.
PAGE 14
LMH6672 SNOS957G – APRIL 2001 – REVISED MARCH 2013 www.ti.com REVISION HISTORY Changes from Revision F (March 2013) to Revision G • 14 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 7-Oct-2013 continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
PAGE 17
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 LMH6672MAX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LMH6672MRX/NOPB SO Power PAD DDA 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.
PAGE 18
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) LMH6672MAX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LMH6672MRX/NOPB SO PowerPAD DDA 8 2500 367.0 367.0 35.
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MECHANICAL DATA DDA0008A MRA08A (Rev D) www.ti.
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