PAMC1035D Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments PAMC1035D is a precision delta-sigma modulator ADC featuring a ±1 V bipolar input range and an integrated 2.5 V reference output in a small outline package. It produces offset-binary serial bitstream output for isolation-compatible designs in precision measurement applications. Available in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- OBSOLETE
- Datasheet
- PAMC1035D Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of PAMC1035D?
- Delta-sigma modulation architecture delivering high resolution and low noise for precision analog measurement applications
- ±1 V bipolar input range enabling direct connection to differential sensor outputs without additional level-shift circuitry
- Integrated 2.5 V reference output reducing external component count and minimizing reference noise in isolated measurement chains
- Offset-binary serial bitstream output format compatible with digital isolators and FPGA-based decimation filters
- Small outline package enabling compact high-density PCB integration in energy metering and industrial sensing modules
What is PAMC1035D used for?
The PAMC1035D targets isolated current and voltage sensing in energy metering, motor drive feedback, and industrial power monitoring where a delta-sigma modulator provides high-resolution bitstream data across a digital isolator barrier. Its ±1 V bipolar input range directly interfaces with shunt resistor or current transformer outputs common in smart energy meters and variable-frequency drives. The integrated 2.5 V reference and offset-binary output simplify system design by reducing external components and enabling direct connection to FPGA or DSP decimation filter inputs.
What are the specifications of PAMC1035D?
| Reach Compliance Code | Unknown |
| Date Of Intro | 2018-09-23 |
| YTEOL | 0 |
| Converter Type | ADC, DELTA-SIGMA |
| Output Bit Code | OFFSET BINARY |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| HTS Code | 8542.39.00.30 |
Where can I find the PAMC1035D datasheet?
PAMC1035D Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for PAMC1035D?
Compatible alternatives and drop-in replacements for PAMC1035D:
Frequently Asked Questions
What input voltage range does PAMC1035D accept, and how does this fit shunt-based current sensing designs?
The PAMC1035D accepts a ±1 V bipolar differential input range, which aligns directly with shunt-resistor voltage drops in high-current paths. For example, a 1 mΩ shunt carrying up to 1000 A produces ±1 V full-scale output, allowing the PAMC1035D to capture the full dynamic range without an intermediate amplifier stage, simplifying the analog signal chain in energy metering and motor-drive current sensing applications.
How does the integrated 2.5 V reference output of PAMC1035D benefit isolated measurement system designs?
The integrated 2.5 V reference output of the PAMC1035D eliminates the need for a discrete precision reference IC on the isolated sensor side of the circuit, reducing component count by at least 1 to 2 parts and saving PCB area. In isolated measurement designs, supplying the reference from the same die as the modulator also minimizes reference-induced gain error that could arise from separate reference temperature coefficients, improving overall measurement accuracy across the operating temperature range of −40 °C to 125 °C.
What output format does PAMC1035D use, and how is it decoded by a digital filter?
The PAMC1035D outputs an offset-binary serial bitstream at a high modulator clock frequency, typically in the range of 10 MHz to 20 MHz depending on system configuration. A host FPGA or DSP applies a sinc3 or sinc4 digital decimation filter to the bitstream to produce a multi-bit digital result. The oversampling ratio determines the effective resolution and output data rate; for example, at a 10 MHz modulator clock with a 256× oversampling ratio, the output data rate is approximately 39 kSPS with resolution equivalent to 16 bits or more.
In which precision measurement scenarios does PAMC1035D outperform a successive-approximation ADC?
PAMC1035D's delta-sigma architecture achieves higher noise immunity and resolution at low-to-medium bandwidth compared to a successive-approximation register (SAR) ADC of equivalent bit count. In power quality meters measuring 50 Hz or 60 Hz mains waveforms, the delta-sigma modulator's oversampling and noise shaping push quantization noise out of the 1 kHz measurement band, achieving effective resolution of 16 bits or better from a 1-bit bitstream, while SAR ADCs at 16 bits require careful board layout to avoid sampling clock coupling into the analog input.
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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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