PCM1851APJTG4 Texas Instruments Integrated Circuit (Quad Flat Packages) In Stock
The PCM1851APJTG4 is a 24-bit delta-sigma ADC from Texas Instruments featuring 12 analog input channels and serial output in a 32-pin TQFP package. It converts differential and single-ended signals up to 2 V and outputs 2s complement binary over a serial interface.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat Packages
- Pin Count
- 32
- Lifecycle
- OBSOLETE
- Datasheet
- PCM1851APJTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PCM1851APJTG4?
- 24-bit delta-sigma conversion across 12 analog input channels for high-resolution audio and measurement
- Serial 2s complement binary output enabling direct interface with DSPs and microcontrollers
- Compact 32-pin TQFP package with 2 V analog input range for low-voltage signal acquisition
What is PCM1851APJTG4 used for?
The PCM1851APJTG4 is designed for professional audio front-ends, multi-channel microphone arrays, and industrial measurement systems requiring 24-bit resolution across 12 simultaneous input channels. Its delta-sigma architecture suppresses quantization noise and provides high dynamic range suitable for studio mixing consoles and sound reinforcement equipment. Industrial data acquisition boards also benefit from its 12-channel input count and serial digital output for streaming to FPGAs or DSP processors.
What are the specifications of PCM1851APJTG4?
| YTEOL | 0 |
| Analog Input Voltage-Max | 2V |
| Converter Type | ADC, DELTA-SIGMA |
| JESD-30 Code | S-PQFP-G32 |
| JESD-609 Code | e4 |
| Number of Analog In Channels | 12 |
| Number of Bits | 24 |
| Number of Functions | 1 |
| Output Bit Code | 2S COMPLEMENT BINARY |
| Output Format | SERIAL |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | TQFP32,.35SQ,32 |
| Package Shape | SQUARE |
| Package Style | FLATPACK, THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Sample Rate | 0.096MHz |
| Screening Level | TS 16949 |
| Supply Current-Max | 35mA |
| Supply Voltage-Nom | 5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.8mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Quad Flat Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| HTS Code | 8542.39.00.30 |
Where can I find the PCM1851APJTG4 datasheet?
PCM1851APJTG4 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PCM1851APJTG4?
Compatible alternatives and drop-in replacements for PCM1851APJTG4:
ADC, Delta-Sigma, 24-Bit, 1 Func, 12 Channel, Serial Access, CMOS, PQFP32
Frequently Asked Questions
How many simultaneous input channels does PCM1851APJTG4 support and at what resolution?
PCM1851APJTG4 supports 12 analog input channels and digitizes each at 24-bit resolution using a delta-sigma ADC architecture. This combination makes it suitable for multi-microphone arrays and multi-channel audio mixing applications where high dynamic range across all 12 inputs is required simultaneously.
What serial output format does PCM1851APJTG4 use and how does it connect to a DSP processor?
PCM1851APJTG4 outputs digitized samples in 2s complement binary format over a serial interface compatible with standard I2S and TDM protocols. A DSP processor can receive all 12 channels at 24-bit depth through a single serial bus, reducing pin count compared to parallel ADC solutions.
For a studio microphone preamp design, is a 2 V maximum analog input sufficient?
The 2 V maximum analog input of PCM1851APJTG4 is well matched to typical condenser microphone preamp output levels, which are usually designed to swing within ±1 V to ±2 V before the ADC stage. Using a differential input topology doubles the effective signal range to ±2 V, delivering the full 24-bit dynamic range for professional audio recordings.
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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.
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