Request Quote
(Ships tomorrow)
LMP2234AMTX/NOPB Equivalent & Substitute Parts
Part Overview
The LMP2234AMTX/NOPB is a general-purpose operational amplifier manufactured by Texas Instruments, featuring four differential, rail-to-rail output circuits in a 14-TSSOP surface mount package. This device is classified as obsolete product status. Due to its obsolete classification, identifying equivalent and substitute parts is essential for design continuity, production planning, and long-term component availability assurance. Substitute parts must maintain functional compatibility across key electrical parameters including supply voltage range, output type, circuit count, and thermal operating range.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | LMP2234AMTX/NOPB | — |
| Manufacturer | Texas Instruments | — |
| Category | Linear, Amplifiers | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 4 | — |
| Output Type | Differential, Rail-to-Rail | — |
| Package / Case | 14-TSSOP (0.173", 4.40mm Width) | — |
| Mounting Type | Surface Mount | — |
| Voltage - Supply Span (Min) | 1.6 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Product Status | Obsolete | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LMP2234AMTX/NOPB are selected based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following allowed parameters:
Critical Matching Parameters:
- Number of Circuits: 4 (all substitutes must have four independent amplifier circuits)
- Output Type: Rail-to-Rail (all substitutes must support rail-to-rail output capability)
- Package / Case: 14-TSSOP or compatible 14-pin SSOP variants (0.173", 4.40mm Width)
- Mounting Type: Surface Mount
- Voltage Supply Range: Minimum 1.6V to 5.5V maximum (substitutes must support this range or a subset that includes common operating voltages)
- Operating Temperature: -40°C to 125°C (substitutes must support this range or a compatible subset)
Substitution Categories:
Category 1: Direct Manufacturer Upgrade (Texas Instruments)
- LMP2234BMTX/NOPB: Active product status variant of the same base product number with identical electrical specifications and packaging.
Category 2: Rohm Semiconductor General Purpose Amplifiers
- BD12734FVJ-E2: General purpose amplifier with enhanced slew rate (0.4V/µs) and gain bandwidth product (1 MHz), operating temperature range -40°C to 85°C.
- LMR934FVJ-E2: General purpose amplifier with improved slew rate (0.35V/µs) and gain bandwidth product (1.4 MHz), operating temperature range -40°C to 85°C.
Category 3: Rohm Semiconductor CMOS Amplifiers
- BU7487FV-E2: CMOS amplifier with significantly higher slew rate (10V/µs) and gain bandwidth product (10 MHz), minimum supply voltage 3V, operating temperature range -40°C to 105°C.
- BU7487SFV-E2: CMOS amplifier with identical specifications to BU7487FV-E2.
- LMR344FVJ-E2: CMOS amplifier with slew rate 1V/µs and gain bandwidth product 2 MHz, operating temperature range -40°C to 85°C.
Category 4: STMicroelectronics General Purpose Amplifier
- LMV824AIPT: General purpose amplifier with automotive qualification (AEC-Q100), slew rate 1.9V/µs, gain bandwidth product 5.5 MHz, operating temperature range -40°C to 125°C.
Category 5: Analog Devices Inc./Maxim Integrated General Purpose Amplifiers
- MAX4472EUD+: General purpose amplifier with ultra-low slew rate (0.002V/µs) and gain bandwidth product (9 kHz), operating temperature range -40°C to 85°C.
- MAX4472EUD+T: Tape & Reel variant of MAX4472EUD+ with identical electrical specifications.
Category 6: Microchip Technology General Purpose Amplifier
- MCP6424-E/ST: General purpose amplifier with slew rate 0.05V/µs and gain bandwidth product 90 kHz, operating temperature range -40°C to 125°C.
All substitute parts maintain ROHS3 compliance, MSL Level 1 (Unlimited), and surface mount 14-pin TSSOP or compatible SSOP packaging.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Amplifier Type | Number of Circuits | Output Type | Slew Rate (V/µs) | Gain Bandwidth Product (MHz) | Supply Min (V) | Supply Max (V) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|---|
| LMP2234AMTX/NOPB | Texas Instruments | Obsolete | General Purpose | 4 | Differential, Rail-to-Rail | 0.048 | 0.13 | 1.6 | 5.5 | -40 to 125 | 14-TSSOP |
| LMP2234BMTX/NOPB | Texas Instruments | Active | General Purpose | 4 | Differential, Rail-to-Rail | 0.048 | 0.13 | 1.6 | 5.5 | -40 to 125 | 14-TSSOP |
| BD12734FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 4 | Rail-to-Rail | 0.4 | 1 | 1.8 | 5 | -40 to 85 | 14-TSSOP-BJ |
| BU7487FV-E2 | Rohm Semiconductor | Active | CMOS | 4 | Rail-to-Rail | 10 | 10 | 3 | 5.5 | -40 to 105 | 14-SSOP-B |
| BU7487SFV-E2 | Rohm Semiconductor | Active | CMOS | 4 | Rail-to-Rail | 10 | 10 | 3 | 5.5 | -40 to 105 | 14-SSOP-B |
| LMR344FVJ-E2 | Rohm Semiconductor | Active | CMOS | 4 | Rail-to-Rail | 1 | 2 | 2.7 | 5.5 | -40 to 85 | 14-TSSOP-BJ |
| LMR934FVJ-E2 | Rohm Semiconductor | Active | General Purpose | 4 | Rail-to-Rail | 0.35 | 1.4 | 1.8 | 5 | -40 to 85 | 14-TSSOP-BJ |
| LMV824AIPT | STMicroelectronics | Active | General Purpose | 4 | Rail-to-Rail | 1.9 | 5.5 | 2.5 | 5.5 | -40 to 125 | 14-TSSOP |
| MAX4472EUD+ | Analog Devices Inc./Maxim Integrated | Active | General Purpose | 4 | Rail-to-Rail | 0.002 | 0.009 | 1.8 | 5.5 | -40 to 85 | 14-TSSOP |
| MAX4472EUD+T | Analog Devices Inc./Maxim Integrated | Active | General Purpose | 4 | Rail-to-Rail | 0.002 | 0.009 | 1.8 | 5.5 | -40 to 85 | 14-TSSOP |
| MCP6424-E/ST | Microchip Technology | Active | General Purpose | 4 | Rail-to-Rail | 0.05 | 0.09 | 1.8 | 5.5 | -40 to 125 | 14-TSSOP |
Engineering Selection Recommendations
Primary Recommendation: LMP2234BMTX/NOPB
The LMP2234BMTX/NOPB is the manufacturer-recommended direct substitute. This part is manufactured by Texas Instruments under the same base product number (LMP2234) and maintains identical electrical specifications to the obsolete LMP2234AMTX/NOPB. The critical distinction is product status: LMP2234BMTX/NOPB is classified as Active, ensuring long-term availability and supply chain continuity. Both parts share identical slew rate (0.048V/µs), gain bandwidth product (130 kHz), supply voltage range (1.6V to 5.5V), and operating temperature range (-40°C to 125°C). Packaging is identical 14-TSSOP. This substitute requires no circuit redesign and provides direct pin-for-pin compatibility. RoHS3 compliance and MSL Level 1 certification are maintained.
Secondary Recommendations by Application Requirements:
For applications requiring extended temperature operation (-40°C to 125°C):
- LMV824AIPT (STMicroelectronics): Maintains full temperature range with automotive AEC-Q100 qualification. Offers improved slew rate (1.9V/µs) and gain bandwidth product (5.5 MHz). Minimum supply voltage is 2.5V, which is higher than the original 1.6V specification.
- MCP6424-E/ST (Microchip Technology): Maintains full temperature range with improved slew rate (0.05V/µs) and gain bandwidth product (90 kHz). Minimum supply voltage is 1.8V, closer to original specification.
For applications requiring enhanced dynamic performance (higher slew rate and bandwidth):
- BD12734FVJ-E2 (Rohm Semiconductor): Offers 8.3× higher slew rate (0.4V/µs) and 7.7× higher gain bandwidth product (1 MHz). Operating temperature range is -40°C to 85°C. Minimum supply voltage is 1.8V.
- LMR934FVJ-E2 (Rohm Semiconductor): Offers 7.3× higher slew rate (0.35V/µs) and 10.8× higher gain bandwidth product (1.4 MHz). Operating temperature range is -40°C to 85°C. Minimum supply voltage is 1.8V.
For applications requiring ultra-high dynamic performance (CMOS technology):
- BU7487FV-E2 or BU7487SFV-E2 (Rohm Semiconductor): CMOS amplifiers offering 208× higher slew rate (10V/µs) and 77× higher gain bandwidth product (10 MHz). Minimum supply voltage is 3V. Operating temperature range is -40°C to 105°C.
- LMR344FVJ-E2 (Rohm Semiconductor): CMOS amplifier offering 20.8× higher slew rate (1V/µs) and 15.4× higher gain bandwidth product (2 MHz). Minimum supply voltage is 2.7V. Operating temperature range is -40°C to 85°C.
For applications requiring ultra-low power consumption:
- MAX4472EUD+ or MAX4472EUD+T (Analog Devices Inc./Maxim Integrated): Offers extremely low slew rate (0.002V/µs) and gain bandwidth product (9 kHz), suitable for ultra-low-power applications. Operating temperature range is -40°C to 85°C. Minimum supply voltage is 1.8V.
All recommended substitutes maintain ROHS3 compliance, MSL Level 1 (Unlimited) moisture sensitivity, and surface mount 14-pin TSSOP or compatible SSOP packaging suitable for automated assembly processes.
Frequently Asked Questions (FAQ)
Q1: Can LMP2234BMTX/NOPB be used as a direct replacement for LMP2234AMTX/NOPB without circuit modification?
A: Yes. LMP2234BMTX/NOPB is the direct manufacturer upgrade. Both parts share identical electrical specifications including slew rate (0.048V/µs), gain bandwidth product (130 kHz), supply voltage range (1.6V to 5.5V), operating temperature range (-40°C to 125°C), and 14-TSSOP packaging. Pin configuration and functional behavior are identical. No circuit redesign is required.
Q2: What is the primary reason for substituting the obsolete LMP2234AMTX/NOPB?
A: The LMP2234AMTX/NOPB is classified as obsolete product status, indicating that Texas Instruments has discontinued manufacturing and will not guarantee future availability. Substitution ensures design continuity, production planning certainty, and long-term supply chain reliability. LMP2234BMTX/NOPB maintains identical functionality while offering active product status.
Q3: Are all substitute parts compatible with the original 1.6V minimum supply voltage specification?
A: No. The original LMP2234AMTX/NOPB supports 1.6V minimum supply voltage. Most substitute parts have higher minimum supply voltage requirements: LMV824AIPT (2.5V), MCP6424-E/ST (1.8V), BD12734FVJ-E2 (1.8V), LMR934FVJ-E2 (1.8V), LMR344FVJ-E2 (2.7V), BU7487FV-E2 and BU7487SFV-E2 (3V), MAX4472EUD+ and MAX4472EUD+T (1.8V). For applications requiring 1.6V operation, LMP2234BMTX/NOPB is the only suitable substitute.
Q4: Which substitute parts maintain the full operating temperature range of -40°C to 125°C?
A: Only three substitute parts maintain the full -40°C to 125°C operating temperature range: LMP2234BMTX/NOPB (Texas Instruments), LMV824AIPT (STMicroelectronics), and MCP6424-E/ST (Microchip Technology). All other substitutes have reduced maximum operating temperature (85°C or 105°C).
Q5: What is the difference between 14-TSSOP and 14-SSOP-B packaging?
A: Both are 14-pin surface mount packages with 0.173" width and 4.40mm body width. 14-TSSOP (Thin Shrink Small Outline Package) and 14-SSOP-B (Small Outline Package variant B) are mechanically compatible for PCB assembly. Pin pitch and lead spacing are equivalent, allowing direct PCB footprint compatibility. Consult specific datasheet dimensions for precise verification.
Q6: Can I use a substitute part with higher slew rate and gain bandwidth product without circuit modification?
A: Higher slew rate and gain bandwidth product generally indicate improved dynamic performance. However, circuit behavior changes with these parameters. Applications sensitive to frequency response, stability margins, or noise characteristics may require circuit analysis and potential compensation network adjustments. Consult device datasheets for detailed frequency response and stability information before substitution.
Q7: What does RoHS3 compliance mean for component substitution?
A: RoHS3 (Restriction of Hazardous Substances Directive 3) compliance indicates that the component meets European environmental regulations restricting hazardous substances including lead, cadmium, mercury, and certain flame retardants. All listed substitute parts maintain ROHS3 compliance, ensuring regulatory compatibility with modern manufacturing and environmental standards.
Q8: What is MSL Level 1 (Unlimited) moisture sensitivity?
A: MSL (Moisture Sensitivity Level) 1 (Unlimited) indicates the component has unlimited shelf life without special moisture control measures. The component can be stored at room temperature and humidity without requiring dry-pack storage or baking procedures before soldering. All listed substitute parts maintain MSL Level 1, ensuring simplified inventory management and assembly processes.
Q9: Which substitute offers the best balance between performance improvement and minimal circuit modification?
A: LMR934FVJ-E2 (Rohm Semiconductor) offers a practical balance: 7.3× improvement in slew rate (0.35V/µs vs. 0.048V/µs) and 10.8× improvement in gain bandwidth product (1.4 MHz vs. 130 kHz) while maintaining general-purpose amplifier classification and 14-TSSOP packaging. Operating temperature range is -40°C to 85°C, and minimum supply voltage is 1.8V. This substitute provides measurable performance enhancement suitable for many applications without requiring extensive circuit redesign.
Q10: Are there automotive-qualified substitute options?
A: Yes. LMV824AIPT (STMicroelectronics) carries automotive qualification with AEC-Q100 certification. This part is suitable for automotive applications requiring qualified components. It maintains the full -40°C to 125°C operating temperature range and offers improved slew rate (1.9V/µs) and gain bandwidth product (5.5 MHz). Minimum supply voltage is 2.5V.
Alternative Parts
SJ6012L2TP
Littelfuse Inc.
6 Alternative Parts
JMK107BBJ476MA-RE
Taiyo Yuden
10 Alternative Parts
GMK107BBJ475MA-T
Taiyo Yuden
5 Alternative Parts
SJ6020N2ARP
Littelfuse Inc.
3 Alternative Parts
SJ6025R2ATP
Littelfuse Inc.
4 Alternative Parts
2474-05L
API Delevan Inc.
1 Alternative Parts
4590R-684K
API Delevan Inc.
1 Alternative Parts
CM6560R-334
API Delevan Inc.
1 Alternative Parts
CM6460-104
API Delevan Inc.
1 Alternative Parts
5526-12
API Delevan Inc.
1 Alternative Parts