LMP7709MA/NOPB Equivalent & Substitute Parts

Part Overview

The LMP7709MA/NOPB is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four independent circuits in a 14-SOIC surface-mount package. This rail-to-rail output amplifier operates across a 2.7V to 12V supply range and is designed for applications requiring low input bias current and moderate bandwidth performance. The device is Active status and ROHS3 compliant with unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent functional performance can be achieved within the specified electrical and mechanical parameters of this product category, maintaining compatibility with existing circuit designs and PCB layouts.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Package / Case	14-SOIC (0.154", 3.90mm Width)	—
Voltage - Supply Span (Min)	2.7	V
Voltage - Supply Span (Max)	12	V
Operating Temperature	-40 to 125	°C
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution eligibility for the LMP7709MA/NOPB is determined by the following mandatory criteria:

Mechanical Compatibility:

Package type: 14-SOIC form factor
Mounting type: Surface Mount
Pin count and pitch: 14 pins

Electrical Compatibility:

Amplifier type: General Purpose
Number of circuits: 4 independent channels
Output configuration: Rail-to-Rail
Supply voltage range: 2.7V to 12V minimum and maximum
Operating temperature range: -40°C to 125°C

Compliance Requirements:

RoHS3 compliance
MSL rating: 1 (Unlimited)

All four substitute parts meet these mandatory criteria. Variations in slew rate, gain bandwidth product, input bias current, input offset voltage, and output current per channel are permitted within the general-purpose amplifier category, as these parameters do not prevent functional substitution in typical applications.

Parameter Comparison

Parameter	LMP7709MA/NOPB	AD8040ARZ-REEL7	TS924AIDT	TS924IDT	TS954IDT	Unit
Manufacturer	Texas Instruments	Analog Devices Inc.	STMicroelectronics	STMicroelectronics	STMicroelectronics	—
Base Product Number	LMP7709	AD8040	TS924	TS924	TS954	—
Number of Circuits	4	4	4	4	4	—
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	—
Slew Rate	5.9	63	1.3	1.3	1	V/µs
Gain Bandwidth Product / -3dB Bandwidth	15 MHz	125 MHz	4 MHz	4 MHz	3 MHz	MHz
Current - Input Bias	0.2	700	15	15	35	pA / nA
Voltage - Input Offset	37	1600	900	3000	6000	µV
Current - Supply	2.9 (x4)	1.4 (x4)	1	1	0.95 (x4)	mA
Current - Output / Channel	86	170	80	80	10	mA
Voltage - Supply Span (Min)	2.7	2.7	2.7	2.7	2.7	V
Voltage - Supply Span (Max)	12	12	12	12	12	V
Operating Temperature	-40 to 125	-40 to 125	-40 to 125	-40 to 125	-40 to 125	°C
Package / Case	14-SOIC	14-SOIC	14-SOIC	14-SOIC	14-SOIC	—
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	—
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	—
Product Status	Active	Active	Active	Active	Active	—

Engineering Selection Recommendations

All four substitute parts maintain Active product status and full ROHS3 compliance with MSL 1 rating, ensuring long-term availability and environmental regulatory alignment with the LMP7709MA/NOPB.

AD8040ARZ-REEL7 (Analog Devices Inc.): This substitute exhibits elevated slew rate (63V/µs) and bandwidth (125 MHz) performance relative to the main part. Input bias current is higher at 700 nA, and input offset voltage increases to 1.6 mV. Output current capability per channel is 170 mA. This part is suitable for applications where higher bandwidth and slew rate performance provide design margin.

TS924AIDT (STMicroelectronics): This substitute carries automotive-grade qualification (AEC-Q100) and is functionally equivalent to TS924IDT with identical electrical specifications. Slew rate is 1.3V/µs and gain bandwidth product is 4 MHz. Input bias current is 15 nA with 900 µV input offset voltage. Output current per channel is 80 mA. This part is appropriate for automotive applications requiring AEC-Q100 certification.

TS924IDT (STMicroelectronics): This substitute also carries AEC-Q100 automotive qualification. Electrical performance is identical to TS924AIDT except for input offset voltage, which is specified at 3 mV. Inventory availability is significantly higher at 41,229 pieces. This part is suitable for automotive applications with higher production volume requirements.

TS954IDT (STMicroelectronics): This substitute carries AEC-Q100 automotive qualification with the lowest supply current (950 µA across four channels) and lowest output current per channel (10 mA). Slew rate is 1V/µs and gain bandwidth product is 3 MHz. Input offset voltage is 6 mV. This part is appropriate for power-constrained automotive applications with lower output current demands.

Frequently Asked Questions (FAQ)

Q: Can the AD8040ARZ-REEL7 be used as a direct replacement for the LMP7709MA/NOPB?

A: The AD8040ARZ-REEL7 is mechanically and electrically compatible within the general-purpose amplifier category. Both devices feature four circuits in 14-SOIC packaging with rail-to-rail output and identical supply voltage range. The AD8040ARZ-REEL7 provides higher bandwidth and slew rate performance. Substitution is valid when circuit design does not depend on the specific input bias current or input offset voltage characteristics of the LMP7709MA/NOPB.

Q: What is the difference between TS924AIDT and TS924IDT?

A: Both parts are manufactured by STMicroelectronics with identical slew rate (1.3V/µs) and gain bandwidth product (4 MHz). The primary difference is input offset voltage: TS924AIDT specifies 900 µV while TS924IDT specifies 3 mV. Both carry AEC-Q100 automotive qualification. TS924IDT has significantly higher inventory availability (41,229 pieces versus 2,063 pieces).

Q: Are the STMicroelectronics TS924 and TS954 parts suitable for non-automotive applications?

A: Yes. Although these parts carry AEC-Q100 automotive qualification, this certification does not restrict their use in non-automotive applications. The qualification indicates these parts meet automotive reliability and quality standards, which is beneficial for any application requiring high reliability. Both TS924AIDT, TS924IDT, and TS954IDT are Active status products with full ROHS3 compliance.

Q: Which substitute part has the lowest power consumption?

A: The TS954IDT has the lowest supply current at 950 µA across four channels. This part is appropriate for battery-powered or power-constrained applications. However, the TS954IDT also has the lowest output current per channel (10 mA), which may limit its use in applications requiring higher output drive capability.

Q: Can I use TS954IDT if my circuit requires 86 mA output current per channel like the LMP7709MA/NOPB?

A: No. The TS954IDT is specified for 10 mA output current per channel, which is insufficient for applications requiring 86 mA per channel. In this case, use AD8040ARZ-REEL7 (170 mA per channel), TS924AIDT (80 mA per channel), or TS924IDT (80 mA per channel).

Q: Are all substitute parts available in the same packaging format?

A: All substitute parts use 14-SOIC surface-mount packaging with 0.154" (3.90mm) width, identical to the LMP7709MA/NOPB. PCB layout and footprint compatibility is maintained across all parts.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 rating indicates unlimited shelf life without moisture baking requirements prior to reflow soldering. This applies to all listed parts, including the main part and all substitutes, simplifying inventory management and manufacturing processes.

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