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LM6142, LM6144

www.ti.com

SNOS726D –JUNE 2000–REVISED MARCH 2013

LM6142/LM6144 17 MHz Rail-to-Rail Input-Output Operational Amplifiers

Check for Samples: LM6142, LM6144

FEATURES

DESCRIPTION

Using patent pending new circuit topologies, the

At V

= 5V. Typ Unless Noted.

LM6142/LM6144 provides new levels of performance

• Rail-to-rail Input CMVR −0.25V to 5.25V

in applications where low voltage supplies or power

• Rail-to-Rail Output Swing 0.005V to 4.995V

limitations previously made compromise necessary.

Operating on supplies of 1.8V to over 24V, the

• Wide Gain-Bandwidth: 17MHz at 50kHz (typ)

LM6142/LM6144 is an excellent choice for battery

• Slew Rate:

operated systems, portable instrumentation and

– Small Signal, 5V/μs

others.

– Large Signal, 30V/μs

The greater than rail-to-rail input voltage range

• Low Supply Current 650μA/Amplifier

eliminates concern over exceeding the common-

mode voltage range. The rail-to-rail output swing

• Wide Supply Range 1.8V to 24V

provides the maximum possible dynamic range at the

• CMRR 107dB

output. This is particularly important when operating

• Gain 108dB with R

= 10k

on low supply voltages.

• PSRR 87dB

High gain-bandwidth with 650μA/Amplifier supply

current opens new battery powered applications

APPLICATIONS

where previous higher power consumption reduced

battery life to unacceptable levels. The ability to drive

• Battery Operated Instrumentation

large capacitive loads without oscillating functionally

• Depth Sounders/Fish Finders

removes this common problem.

• Barcode Scanners

• Wireless Communications

• Rail-to-Rail in-out Instrumentation Amps

Connection Diagrams

Figure 1. 8-Pin CDIP Figure 2. 8-Pin PDIP/SOIC

Top View Top View

Figure 3. 14-Pin PDIP/SOIC

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 (26 pages)

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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 LM6142/LM6144 17 MHz Rail-to-Rail Input-Output Operational Amplifiers Check for Samples: LM6142, LM6144 FEATURES DESCRIPTION 1 At VS = 5V. Typ Unless Noted. 2 • • • • • • • • • Rail-to-rail Input CMVR −0.25V to 5.25V Rail-to-Rail Output Swing 0.005V to 4.995V Wide Gain-Bandwidth: 17MHz at 50kHz (typ) Slew Rate: – Small Signal, 5V/μs – Large Signal, 30V/μs Low Supply Current 650μA/Amplifier Wide Supply Range 1.
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LM6142, LM6144 SNOS726D – JUNE 2000 – 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) (2) ESD Tolerance (3) 2500V Differential Input Voltage 15V (V+) + 0.3V, (V−) − 0.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 5.0V DC Electrical Characteristics(1) (continued) Unless otherwise specified, all limits guaranteed for TA = 25°C, V+ = 5.0V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ to V+/2. Boldface limits apply at the temperature extremes.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com 5.0V AC Electrical Characteristics (1) Unless Otherwise Specified, All Limits Guaranteed for TA = 25°C, V+ = 5.0V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ to V+/2. Boldface limits apply at the temperature extremes.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 2.7V DC Electrical Characteristics(1) (continued) Unless Otherwise Specified, All Limits Guaranteed for TA = 25°C, V+ = 2.7V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ to V+/2. Boldface limits apply at the temperature extreme Symbol IS Parameter Supply Current Conditions Per Amplifier Typ (2) LM6144AI LM6142AI Limit (3) LM6144BI LM6142BI Limit (3) 510 800 800 μA 880 880 max Units 2.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com 24V Electrical Characteristics(1) (continued) Unless Otherwise Specified, All Limits Guaranteed for TA = 25°C, V+ = 24V, V− = 0V, VCM = VO = V+/2 and RL > 1 MΩ to V+/2.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 Typical Performance Characteristics TA = 25°C, RL = 10 kΩ Unless Otherwise Specified Supply Current vs. Supply Voltage Offset Voltage vs. Supply Voltage Figure 4. Figure 5. Bias Current vs. Supply Voltage Offset Voltage vs. VCM Figure 6. Figure 7. Offset Voltage vs. VCM Offset Voltage vs. VCM Figure 8. Figure 9.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) TA = 25°C, RL = 10 kΩ Unless Otherwise Specified 8 Bias Current vs. VCM Bias Current vs. VCM Figure 10. Figure 11. Bias Current vs. VCM Open-Loop Transfer Function Figure 12. Figure 13. Open-Loop Transfer Function Open-Loop Transfer Function Figure 14. Figure 15.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 Typical Performance Characteristics (continued) TA = 25°C, RL = 10 kΩ Unless Otherwise Specified Output Voltage vs. Source Current Output Voltage vs. Source Current Figure 16. Figure 17. Output Voltage vs. Source Current Output Voltage vs. Sink Current Figure 18. Figure 19. Output Voltage vs. Sink Current Output Voltage vs. Sink Current Figure 20. Figure 21.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) TA = 25°C, RL = 10 kΩ Unless Otherwise Specified 10 Gain and Phase vs. Load Gain and Phase vs. Load Figure 22. Figure 23. Distortion + Noise vs. Frequency GBW vs. Supply Figure 24. Figure 25. Open Loop Gain vs. Load, 3V Supply Open Loop Gain vs. Load, 5V Supply Figure 26. Figure 27.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 Typical Performance Characteristics (continued) TA = 25°C, RL = 10 kΩ Unless Otherwise Specified Open Loop Gain vs. Load, 24V Supply Unity Gain Frequency vs. VS Figure 28. Figure 29. CMRR vs. Frequency Crosstalk vs. Frequency Figure 30. Figure 31. PSRR vs. Frequency Noise Voltage vs. Frequency Figure 32. Figure 33.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com Typical Performance Characteristics (continued) TA = 25°C, RL = 10 kΩ Unless Otherwise Specified 12 Noise Current vs. Frequency NF vs. RSource Figure 34. Figure 35.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 LM6142/LM6144 APPLICATION IDEAS The LM6142 brings a new level of ease of use to op amp system design. With greater than rail-to-rail input voltage range concern over exceeding the common-mode voltage range is eliminated. Rail-to-rail output swing provides the maximum possible dynamic range at the output. This is particularly important when operating on low supply voltages.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com Figure 37. Slew Rate vs. Δ VIN VS = ±5V This effect is most noticeable at higher supply voltages and lower gains where incoming signals are likely to be large. This new input circuit also eliminates the phase reversal seen in many op amps when they are overdriven. This speed-up action adds stability to the system when driving large capacitive loads. DRIVING CAPACITIVE LOADS Capacitive loads decrease the phase margin of all op amps.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 Figure 39. Figure 40. Typical Applications FISH FINDER/ DEPTH SOUNDER. The LM6142/LM6144 is an excellent choice for battery operated fish finders. The low supply current, high gainbandwidth and full rail to rail output swing of the LM6142 provides an ideal combination for use in this and similar applications.
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LM6142, LM6144 SNOS726D – JUNE 2000 – REVISED MARCH 2013 www.ti.com Figure 41. The gain is set by the ratio of R2/R1 and R3 should equal R1 and R4 equal R2. Making R4 slightly smaller than R2 and adding a trim pot equal to twice the difference between R2 and R4 will allow the CMR to be adjusted for optimum. With both rail to rail input and output ranges, the inputs and outputs are only limited by the supply voltages.
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LM6142, LM6144 www.ti.com SNOS726D – JUNE 2000 – REVISED MARCH 2013 REVISION HISTORY Changes from Revision C (March 2013) to Revision D • 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 Orderable Device 1-Nov-2013 Status (1) LM6144BIN/NOPB ACTIVE Package Type Package Pins Package Drawing Qty PDIP NFF 14 25 Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Green (RoHS & no Sb/Br) SN Level-1-NA-UNLIM Op Temp (°C) Device Marking (4/5) -40 to 85 LM6144BIN (1) The marketing status values are defined as follows: ACTIVE: Product device recommended for new designs.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-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 LM6142AIMX SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM6142AIMX/NOPB SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.0 Q1 LM6142BIMX SOIC D 8 2500 330.0 12.4 6.5 5.4 2.0 8.0 12.
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PACKAGE MATERIALS INFORMATION www.ti.com 8-Apr-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) LM6142AIMX SOIC D 8 2500 367.0 367.0 35.0 LM6142AIMX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LM6142BIMX SOIC D 8 2500 367.0 367.0 35.0 LM6142BIMX/NOPB SOIC D 8 2500 367.0 367.0 35.0 LM6144AIMX SOIC D 14 2500 367.0 367.0 35.0 LM6144AIMX/NOPB SOIC D 14 2500 367.0 367.0 35.
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MECHANICAL DATA NFF0014A N0014A N14A (Rev G) www.ti.
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