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MAX2308ETI+
Electronics Part Number
MAX2308ETI+-WXManufacturer
Texas Instruments
MAX2308ETI+
Description
RF demod IC for 70MHz-300MHz, 28TQFNInventory
876 Pcs New Original In Stock
Demodulator IC, 28-WFQFN, 70-300MHz. Quadrature output, low distortion; ideal for RF/IF conversion in communications.
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Basic cost: USD 70.00
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Technical Specifications
Category
Power Management (PMIC), V/F and F/V Converters
Manufacturer
Texas Instruments
Packaging
Cut Tape (CT) & Digi-Reel®
Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154", 3.90mm Width)
Series
-
Base Product Number
LM2907
Product Status
Obsolete
Type
Frequency to Voltage
Supplier Device Package
14-SOIC
Frequency - Max
10 kHz
Linearity
±0.3%
Full Scale
-
Data Sheet Document (D)
Datasheets
Download LM2907MX Product Specification (PDF)
HTML Datasheet
LM2907MX-DG
Environmental & Export Classification
RoHS Status
ROHS3 Compliant
Moisture Sensitivity Level (MSL)
1 (Unlimited)
REACH Status
REACH Unaffected
ECCN
EAR99
HTSUS
8542.39.0001
Additional Information
Other Names
LM2907MXDKR LM2907MXTR LM2907MXCT
Standard Package
2,500
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Frequently Asked Questions (FAQ)
Is the LM2907MX still a viable choice for new designs given its obsolete status, and what are the ke
The LM2907MX is marked as obsolete by Texas Instruments, which means it is no longer recommended for new designs and may face long-term supply chain risks. While existing inventory (like the 1,450 pcs in stock) can support short-term prototyping or low-volume builds, relying on it for volume production introduces significant obsolescence risk—future shortages could force costly redesigns. We strongly recommend migrating to a modern alternative such as the LM2917 or a digital signal processing (DSP)-based solution with higher integration and active support, especially for automotive or industrial applications requiring long lifecycle support.
Can the LM2907MX be safely replaced with the LM2907MX/NOPB in an existing PCB layout without rework
Yes, the LM2907MX/NOPB is the RoHS-compliant version of the LM2907MX and is a direct drop-in replacement with identical electrical characteristics, pinout, and 14-SOIC package dimensions. Both share the same ±0.3% linearity, 10 kHz max frequency, and MSL 1 rating, so no PCB rework or firmware changes are needed. However, verify that your assembly house can handle the lead-free solder profile of the /NOPB variant, as it may require slightly higher reflow temperatures compared to legacy tin-lead processes.
What are the real-world limitations when using the LM2907MX in high-noise environments like motor dr
The LM2907MX, while robust for its era, lacks built-in noise immunity and relies heavily on external filtering for stable operation. In high-noise environments (e.g., near PWM-driven motors or variable-frequency drives), electromagnetic interference (EMI) can couple into the input signal path, causing jitter or false triggering that degrades the ±0.3% linearity. To mitigate this, implement a low-pass RC filter (e.g., 1kΩ + 100nF) at the input, use shielded cabling, and place a 10µF bypass capacitor close to the VCC pin. Additionally, ensure the ground plane is solid and isolated from high-current return paths to prevent ground bounce from affecting the reference voltage.
How does the LM2907MX compare to the newer LM2917N in terms of integration, power efficiency, and de
The LM2907MX and LM2917N are both frequency-to-voltage converters, but the LM2917N offers better integration with an internal charge pump and improved temperature stability, reducing the need for external components like diodes and capacitors required by the LM2907MX. While the LM2907MX supports up to 10 kHz with ±0.3% linearity, the LM2917N achieves similar performance with lower quiescent current and better supply voltage range (up to 28V vs. 28V max for LM2907MX, but with tighter regulation). For new designs, the LM2917N simplifies BOM and improves reliability, though it may require minor layout adjustments due to different pin functions—always cross-check the datasheet before substitution.
What reliability concerns should I consider when deploying the LM2907MX in automotive or extended-te
Although the LM2907MX has an MSL 1 (unlimited floor life) rating and is RoHS3 compliant, its obsolete status means it lacks modern qualification data for automotive-grade reliability (e.g., AEC-Q100). Operating beyond the typical industrial temperature range (-40°C to +85°C) without verified HTOL (High Temperature Operating Life) or ESD robustness data increases the risk of premature failure in under-hood or outdoor applications. If used in such environments, implement derating (e.g., operate below 80% of max frequency and voltage), add input overvoltage protection, and conduct accelerated life testing. For safety-critical systems, prefer actively supported, AEC-Q100-qualified alternatives like the LM2917A.
Is the LM2907MX still a viable choice for new designs given its obsolete status, and what are the ke
The LM2907MX is marked as obsolete by Texas Instruments, which means it is no longer recommended for new designs and may face long-term supply chain risks. While existing inventory (like the 1,450 pcs in stock) can support short-term prototyping or low-volume builds, relying on it for volume production introduces significant obsolescence risk—future shortages could force costly redesigns. We strongly recommend migrating to a modern alternative such as the LM2917 or a digital signal processing (DSP)-based solution with higher integration and active support, especially for automotive or industrial applications requiring long lifecycle support.
Can the LM2907MX be safely replaced with the LM2907MX/NOPB in an existing PCB layout without rework
Yes, the LM2907MX/NOPB is the RoHS-compliant version of the LM2907MX and is a direct drop-in replacement with identical electrical characteristics, pinout, and 14-SOIC package dimensions. Both share the same ±0.3% linearity, 10 kHz max frequency, and MSL 1 rating, so no PCB rework or firmware changes are needed. However, verify that your assembly house can handle the lead-free solder profile of the /NOPB variant, as it may require slightly higher reflow temperatures compared to legacy tin-lead processes.
What are the real-world limitations when using the LM2907MX in high-noise environments like motor dr
The LM2907MX, while robust for its era, lacks built-in noise immunity and relies heavily on external filtering for stable operation. In high-noise environments (e.g., near PWM-driven motors or variable-frequency drives), electromagnetic interference (EMI) can couple into the input signal path, causing jitter or false triggering that degrades the ±0.3% linearity. To mitigate this, implement a low-pass RC filter (e.g., 1kΩ + 100nF) at the input, use shielded cabling, and place a 10µF bypass capacitor close to the VCC pin. Additionally, ensure the ground plane is solid and isolated from high-current return paths to prevent ground bounce from affecting the reference voltage.
How does the LM2907MX compare to the newer LM2917N in terms of integration, power efficiency, and de
The LM2907MX and LM2917N are both frequency-to-voltage converters, but the LM2917N offers better integration with an internal charge pump and improved temperature stability, reducing the need for external components like diodes and capacitors required by the LM2907MX. While the LM2907MX supports up to 10 kHz with ±0.3% linearity, the LM2917N achieves similar performance with lower quiescent current and better supply voltage range (up to 28V vs. 28V max for LM2907MX, but with tighter regulation). For new designs, the LM2917N simplifies BOM and improves reliability, though it may require minor layout adjustments due to different pin functions—always cross-check the datasheet before substitution.
What reliability concerns should I consider when deploying the LM2907MX in automotive or extended-te
Although the LM2907MX has an MSL 1 (unlimited floor life) rating and is RoHS3 compliant, its obsolete status means it lacks modern qualification data for automotive-grade reliability (e.g., AEC-Q100). Operating beyond the typical industrial temperature range (-40°C to +85°C) without verified HTOL (High Temperature Operating Life) or ESD robustness data increases the risk of premature failure in under-hood or outdoor applications. If used in such environments, implement derating (e.g., operate below 80% of max frequency and voltage), add input overvoltage protection, and conduct accelerated life testing. For safety-critical systems, prefer actively supported, AEC-Q100-qualified alternatives like the LM2917A.
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Sep 15 2026
