MCP3465T-E/QM - 16-Bit Single-Channel Delta-Sigma ADC, 3V, UQFN-12 | Microchip Technology
MPN: MCP3465T-E/QM ✓ نشطMCP3465T-E/QM نظرة عامة
An ADC is a data-conversion device that transforms a continuous analog voltage into a digital code for processing by a microcontroller, DSP or host controller. Within the product hierarchy, this part belongs to the delta-sigma ADC class, which uses oversampling and digital filtering to deliver high resolution and excellent noise performance from a low bandwidth. The MCP3465 sits in the broader category of data-converter ICs, inside integrated circuits, inside semiconductors, and ultimately inside the wider electronic-component supply chain.
Key characteristics include 16-bit nominal resolution, a single analog input channel, a 3 V supply domain and a UQFN-12 surface-mount package. Because it uses a delta-sigma architecture, the converter trades conversion speed for noise rejection and linearity, which is exactly what thermocouple, bridge, ratiometric sensor and general slow-changing analog signal measurements need. The small package keeps the analog front end close to the sensor on the board.
The internal conversion chain uses a sigma-delta modulator followed by digital decimation filtering, so the effective noise bandwidth is narrowed far below the modulator sample rate. This is why the device performs well when the input signal is slowly varying and when the analog board is electrically noisy. Differential-style ratiometric measurements cancel supply drift and reference-gain error, which matters when the excitation current comes from the same supply as the converter.
Typical applications include industrial process monitoring, portable medical instrumentation, load-cell and pressure bridge front ends, battery-powered data loggers, and consumer or IoT sensor hubs that need more resolution than an internal MCU ADC can deliver at low cost. The device also suits laboratory and test equipment where traceable measurement performance is required in a compact board area.
A key design consideration is that delta-sigma ADCs need a clean reference and stable layout. Place the decoupling capacitors close to the supply and reference pins, keep analog traces short and away from switching nodes, and treat the analog ground return as a separate, low-impedance path to the regulator. Because the digital filter has a settling time, read the data-ready signal before issuing the next conversion instead of polling at a fixed delay.
This page consolidates package, ordering-code and sourcing detail for the MCP3465T-E/QM together with drop-in replacement options in the same UQFN-12 footprint, a parameter-by-parameter comparison, and practical layout and application guidance that engineers can apply directly to a new analog board.
بدائل مباشرة لـ MCP3465T-E/QM — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
MCP3465T-E/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3465T-I/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3561T-E/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3562T-E/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3563T-E/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3564T-E/CH
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
MCP3465T-E/QM الحدود القصوى والخصائص الكهربائية
| الدقة | 16 bit |
| Architecture | Delta-sigma (sigma-delta) ADC |
| Number of Channels | 1 (single channel) |
| جهد التغذية | 3 V (nominal) |
| العلبة | UQFN-12 (12-pin, surface mount) |
| Package Dimensions | Approximately 3 mm x 3 mm |
| نوع التركيب | Surface Mount |
| Automotive Grade Suffix | /QM (AEC-Q100 oriented ordering code) |
دليل تكوين أطراف MCP3465T-E/QM approximately 3 mm x 3 mm
تكوين الأطراف لـ MCP3465T-E/QM (حزمة approximately 3 mm x 3 mm). يتميز هذا المكوّن التناظري بأطراف الإدخال والإخراج وإمداد الطاقة. راجع ورقة بيانات الشركة المصنعة لتكوينات طرف إلغاء الإزاحة والتعويض والتمكين. مثالي لدوائر تكييف الإشارة والمضخمات.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ MCP3465T-E/QM.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
MCP3465T-E/QM مناسب لـ 6 التطبيقs: Industrial Process and Sensor Instrumentation, Load Cell and Pressure Bridge Front Ends, Battery-Powered IoT and Environmental Sensor Nodes, Portable Medical and Wellness Devices, Test and Measurement Instrumentation, Automotive and Off-Highway Sensing.
Industrial Process and Sensor Instrumentation
The MCP3465T-E/QM fits slow-changing process signals such as pressure, level and temperature transmitter outputs because a 16-bit delta-sigma converter delivers 65,536 codes over the full-scale range while its narrow digital filter suppresses broadband interference from relay, motor and switching-supply stages on the same board. The single-channel architecture maps directly onto one transmitter per board, while the 3 V supply matches the 24 V loop transmitter after regulation. The UQFN-12 outline keeps the analog front end physically close to the sensor connector, reducing pickup on the high-impedance input node.
موصى به
Load Cell and Pressure Bridge Front Ends
Bridge-based measurements demand resolution and low noise rather than speed, which is exactly the profile of the MCP3465T-E/QM. With 16-bit resolution and a delta-sigma conversion chain, a few millivolts of bridge output can be resolved reliably, and ratiometric excitation means supply and reference variations cancel in the measurement. The single analog input with an integrated filter removes the need for an external anti-alias network in many cases, while the 12-pin UQFN-12 package fits a compact load-cell amplifier board for scales, dispensers and industrial pressure monitors.
موصى به
Battery-Powered IoT and Environmental Sensor Nodes
In a battery-powered environmental node the MCP3465T-E/QM runs from a 3 V rail, which matches a single-cell lithium source or its 3.3 V regulator, and it spends most of its life between conversions. Because the device is a delta-sigma type, its digital decimation filter attenuates the wideband noise typical of low-cost MEMS and resistive sensors, so a periodic reading is accurate without averaging in firmware. The 3 mm x 3 mm UQFN-12 footprint leaves board area for the radio, and the /QM ordering code suits designs that must later enter an automotive-adjacent qualification program.
موصى به
Portable Medical and Wellness Devices
Compact medical-adjacent monitors often need better than 12-bit measurement from a small board, and the MCP3465T-E/QM provides 16-bit resolution in a 12-pin UQFN-12 package with a 3 V supply. Resolution matters for finger pulse oximetry, respiration, body-surface impedance and biochemical optical-sensing front ends, where small amplitude signals must be digitized before a microcontroller or DSP processes them. Its narrow filtered bandwidth rejects mains and switching noise common in consumer wellness hardware, and the single-channel converter can be time-multiplexed across several slow front ends through a low-leakage analog switch.
موصى به
Test and Measurement Instrumentation
Laboratory and bench instruments often combine a precision analog input with a compact display and a moderate data rate, a profile that matches the MCP3465T-E/QM. The 16-bit delta-sigma core provides the resolution needed for 4-20 mA and voltage loop logging, and the internal digital filter gives repeatable results without a long ripple rejection settling requirement at DC. The small UQFN-12 outline allows the converter to sit next to the front-end multiplexer and protection network on a narrow instrument PCB, and the automotive-oriented /QM code is useful for suppliers that build both instrument and vehicle electronics on the same platform.
موصى به
Automotive and Off-Highway Sensing
Vehicle and off-highway sensing modules monitor battery voltage, coolant temperature, oil pressure and suspension position over long cable runs in electrically harsh environments, and the MCP3465T-E/QM /QM ordering code targets exactly this kind of AEC-Q100-oriented program. A 16-bit delta-sigma converter resolves the attenuated sensor signals while rejecting the ignition and alternator noise present in an automotive electrical environment. The single-channel converter suits one slow sensor per acquisition cell, and the 3 V supply plus 3 mm x 3 mm UQFN-12 package allow dense sensing nodes to be placed near the sensor rather than at a central ECU.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ MCP3465T-E/QM — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | MCP3465T-E/CH | MCP3465T-I/CH | MCP3561T-E/CH |
|---|---|---|---|---|
| Package | UQFN-12 (3x3 mm) | UQFN-12 (3x3 mm) - same | UQFN-12 (3x3 mm) - same | UQFN-12 (3x3 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Resolution | 16 bit | 16 bit | 16 bit | 16 bit |
| Architecture | Delta-sigma ADC | Delta-sigma ADC | Delta-sigma ADC | Delta-sigma ADC |
| Automotive Qualification Route | Yes (-E/QM ordering code) | No | No | No |
| Temperature Grade | Extended (-E) | Extended (-E) | Industrial (-I), reduced upper limit | Extended (-E) |
| Packing Option | Tape & reel (T suffix) | Tape & reel | Tape & reel | Tape & reel |
أبرز الفروقات
- Automotive-oriented qualification ordering code in a 16-bit single-channel converter (مقابلMCP3465T-E/CH)
- Single-channel simplicity keeps the analog front end one-for-one with the sensor (مقابلMCP3564T-E/CH)
- Extended temperature grade for harsher environments (مقابلMCP3465T-I/CH)
- Delta-sigma noise rejection without an external analog filter (مقابلMCP3465T-E/CH)
ملاحظات التصميم
Treat the analog input node as a high-impedance, high-gain node. Route it directly from the sensor or front-end network to the converter pin with no stubs, no vias to other layers and no routing parallel to the digital interface lines. Place the supply and reference bypass capacitors on the same PCB side as the converter, directly between the relevant pin and the ground plane. Keep the analog return path short and connect it to the ground plane at a single quiet point near the converter rather than daisy-chaining it back to a noisy digital return.
A common mistake with delta-sigma converters is assuming the output is valid immediately after the conversion period. The internal decimation filter needs additional settling time before the data register holds a fully filtered code. Read the data-ready output and fetch the result on that edge rather than using a fixed delay, and apply the manufacturer settling-time formula when computing the overall sample period. A second common error is ignoring the reference requirement: confirm whether the device uses its internal reference or an external VREF, and observe the external reference voltage range and decoupling recommendations from the datasheet.
Delta-sigma converters reject noise inside their effective digital filter bandwidth, but they can still be affected by out-of-band interference coupled into the input or into the reference pin. Keep switching regulators, DC-DC converters and relay drivers physically away from the converter and its input network, and if the board is dense, add a small series resistor with a local capacitor at the input to form a simple low-pass filter. For automotive and off-highway boards, where alternator and ignition noise are severe, verify the common-mode rejection and input impedance limits in the datasheet before committing to a cable length.
Estimated: in continuous-conversion use the converter power dissipation is dominated by the analog and digital supply currents and the internal reference. As an example, using a 3 V supply and 1.5 mA of device current gives roughly 4.5 mW of internal dissipation, which is negligible; the real thermal risk in a UQFN-12 package comes from board-level self-heating of the surrounding regulator and the exposed pad. Tie the exposed centre pad to ground, flood the surrounding area with copper, and follow the manufacturer land-pattern and reflow profile recommendations for the 12-pin UQFN outline.
معلومات الامتثال
The /QM ordering code indicates the AEC-Q100-oriented automotive qualification route used by Microchip Technology for automotive-grade variants. RoHS, REACH, lead-free and halogen-free declarations should be confirmed on the Microchip product page or the material declaration for this specific ordering code.
