LM1972M/NOPB Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
LM1972M/NOPB is a dual digitally controlled audio attenuator by Texas Instruments, offering 78dB attenuation range with 2dB step resolution and SPI interface control. Key specs: dual-channel, 8-bit SPI interface, -105dB THD+N. From $2.41, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- ACTIVE
- Datasheet
- LM1972M/NOPB Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $2.4100(MOQ 1)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM1972M/NOPB?
- Dual-channel audio attenuation with independent channel control for stereo applications
- Wide 78dB attenuation range in 2dB steps for precise volume control
- SPI serial interface for easy microcontroller integration
- Low THD+N of -105dB ensures high audio fidelity
- Single 5V supply operation with low power consumption
What is LM1972M/NOPB used for?
The LM1972M/NOPB is widely used in consumer audio equipment such as preamplifiers, mixing consoles, and home theater systems where precise digital volume control is required. It is also suitable for professional audio processing applications including equalizers and signal routing systems that demand low distortion and high channel separation.
What are the specifications of LM1972M/NOPB?
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Channel Separation | 110dB |
| Consumer IC Type | CONSUMER CIRCUIT |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e3 |
| Number of Channels | 2 |
| Number of Functions | 1 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 4mA |
| Supply Voltage-Max (Vsup) | 12V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| ## LM1972M/NOPB Alternates Showing results | Image |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Where can I find the LM1972M/NOPB datasheet?
LM1972M/NOPB Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM1972M/NOPB?
Compatible alternatives and drop-in replacements for LM1972M/NOPB:
suggested
suggested
Frequently Asked Questions
What is the attenuation range and step size of the LM1972M/NOPB?
The LM1972M/NOPB provides a 78dB attenuation range with a 2dB step resolution, allowing fine-grained digital volume control across 40 discrete steps from 0dB to -78dB attenuation.
What interface does the LM1972M/NOPB use for control?
The LM1972M/NOPB uses an SPI (Serial Peripheral Interface) for digital control, making it straightforward to integrate with microcontrollers and DSPs. It supports a standard 3-wire SPI protocol for sending attenuation data to each channel independently.
What are the typical applications for the LM1972M/NOPB?
Typical applications include stereo preamplifiers, audio mixers, home theater receivers, digital audio workstations, and any system requiring precise, digitally controlled audio level adjustment with minimal distortion.
What package does the LM1972M/NOPB come in and what is its supply voltage?
The LM1972M/NOPB is available in an SOIC-16 surface-mount package and operates from a single 5V supply, making it compatible with most modern digital audio system power rails.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $5.9850 | $5.99 |
| 3+ | $4.9875 | $14.96 |
| 6+ | $4.3890 | $26.33 |
| 85+ | $3.5400 | $300.90 |
| 500+ | $2.5500 | $1275.00 |
| 1000+ | $2.4100 | $2410.00 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“The anti-counterfeit verification gave us confidence we'd never had with other China suppliers.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit