MPXHZ6400AC6T1 - 20-400kPa Absolute Pressure Sensor | NXP
MPN: MPXHZ6400AC6T1 ✓ Hoạt độngMPXHZ6400AC6T1 Tóm tắt
An absolute pressure sensor is a transducer that measures pressure referenced to a perfect vacuum rather than ambient atmosphere, making it ideal for sealed-system applications where the back side of the sensing element is evacuated and sealed. Within the sensor taxonomy, the MPXHZ6400AC6T1 sits in the integrated (signal-conditioned) absolute pressure sensor family, between raw piezoresistive MEMS cells (which require external amplification) and full digital I2C/SPI pressure modules (which integrate ADC and MCU on chip). It occupies the middle tier where the chip outputs a calibrated analog voltage but the application MCU still handles interpretation.
Key features include a sensitivity of 12.1 mV/kPa, accuracy of plus/minus 1.5 percent full-scale span, and an operating temperature range of -40 C to +125 C. The integrated bipolar op-amp front end with thin-film resistor networks delivers a ratiometric output proportional to supply voltage, simplifying ADC interfacing. The top-port tubing interface accepts a 3.3 mm (0.13 inch) tube; the suffix C6 indicates the tube orientation.
Technically, the device uses a single-port MEMS strain-gauge bridge that is laser-trimmed during manufacture. The on-chip conditioning corrects second-order temperature errors across the automotive-grade -40 C to +125 C range. Compared to the non-Z MPXH6400AC6T1, the Z suffix denotes media-resistant gel protection over the die for harsh media exposure.
Typical applications include manifold absolute pressure (MAP) sensing in engine control units, industrial pneumatic monitoring, altimeter/barometric pressure modules, HVAC differential measurement, and motorcycle/small-engine fuel-pressure monitoring. The integrated calibration eliminates per-board trimming in production.
Designers should treat the output as ratiometric with Vcc; if the ADC reference tracks Vcc, no extra calibration is required. Decouple Vcc with a 100 nF ceramic plus a 1 uF bulk capacitor placed within 5 mm of the supply pin to keep noise off the analog output stage.
Bộ thay thế dễ dàng lắp đặt cho MPXHZ6400AC6T1 — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với MPXHZ6400AC6T1 (cùng hình factor và footprint) — khác nhau ở Package, Supply Voltage, Operating Temperature, Output Type, Output Voltage Range.
MPXH6400AC6T1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →MPXH6400AC6U
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MPXHZ6400AC6U
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MPXH6400AC7T1
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
MPXHZ6400A6T1
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MPXHZ6400AC6T1 Tỷ lệ tối đa & tính chất điện
| Kiểu cảm biến | Absolute Pressure Sensor |
| Khoảng đo | 20 kPa to 400 kPa (2.9 PSI to 58.02 PSI) |
| Kiểu đầu ra | Analog Voltage |
| Khoảng điện áp đầu ra | 0.2 V to 4.8 V |
| Sensitivity | 12.1 mV/kPa |
| Điện áp cung cấp | 4.64 V to 5.36 V (5 V typical) |
| Accuracy | plus/minus 1.5% Full-Scale Span |
| Nhiệt độ hoạt động | -40 C to +125 C |
| Pressure Port Type | Top port, male 3.3 mm (0.13 inch) tube |
| Hộp | 8-SSOP (0.335 inch, 8.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Media Compatibility | Media-resistant gel coating (Z suffix) |
| Signal Conditioning | On-chip bipolar op-amp, temperature compensated, calibrated |
| Port Orientation | Top (suffix C6) |
| Tape and Reel | Yes (T1 suffix, 1000 pcs/reel) |
| Trạng thái RoHS | Compliant |
Cấu hình chân MPXHZ6400AC6T1
| Chân 1 | Vcc — 5 V supply voltage |
| Chân 2 | GND — Ground reference |
| Chân 3 | Vout — Analog pressure output (0.2 V to 4.8 V) |
| Chân 4 | NC — Not connected (per datasheet) |
| Chân 5 | NC — Not connected (per datasheet) |
| Chân 6 | NC — Not connected (per datasheet) |
| Chân 7 | NC — Not connected (per datasheet) |
| Chân 8 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MPXHZ6400AC6T1 phù hợp cho 6 Áp dụngs: Engine Manifold Absolute Pressure (MAP) Sensing, Industrial Pneumatic System Monitoring, Barometric Altimeter / Weather Station, HVAC Refrigerant Line Pressure Monitoring, Motorcycle / Small Engine Fuel Pressure Monitoring, Medical Respiratory / CPAP Pressure Monitoring.
Engine Manifold Absolute Pressure (MAP) Sensing
The MPXHZ6400AC6T1's 20 kPa to 400 kPa range aligns precisely with the boost/vacuum pressures seen inside an intake manifold - especially in turbocharged engines that exceed atmospheric pressure during boost events. Its 12.1 mV/kPa sensitivity gives the ECU's 10-bit ADC roughly 0.4 kPa resolution per LSB, sufficient for closed-loop fuel trim. The on-chip bipolar op-amp front end plus calibration eliminates the per-board trimming that older MAP sensors demanded. Placed via vacuum hose or direct mount to the manifold plenum, output feeds the ECU's MAP input. Unlike resistive strain-gauge sensors, the integrated temperature compensation keeps accuracy within plus/minus 1.5 percent FS from -40 C to +125 C, so cold-start fueling remains correct. Media-resistant gel lets the sensor survive oil-contaminated intake recirculation.
Được đề xuất
Industrial Pneumatic System Monitoring
Factory pneumatic lines routinely operate between 200 kPa and 800 kPa, and the MPXHZ6400AC6T1 covers the critical monitoring portion up to 400 kPa for shop-air and low-pressure distribution. Its 0.2 V to 4.8 V analog output interfaces directly to industrial PLC analog input modules without signal conditioning. The plus/minus 1.5 percent full-scale accuracy exceeds the typical plus/minus 3 percent spec for general pneumatic diagnostics. Designers wire the output to a 24-bit ADC or 4-20 mA loop transmitter. The 5 V supply rail can be shared with PLC backplane; ratiometric output tracks supply, simplifying calibration. Media-resistant gel permits exposure to oil-mist contamination common in compressor rooms without die degradation.
Được đề xuất
Barometric Altimeter / Weather Station
For hobbyist altimeters, drone altitude hold, and portable weather stations, the MPXHZ6400AC6T1's 20 kPa to 400 kPa range encompasses sea-level (101 kPa) through stratospheric altitudes (~5 kPa at 36 km). Its 12.1 mV/kPa sensitivity yields about 8.26 m per LSB resolution at a 10-bit ADC - suitable for hand-held altimeters where plus/minus 10 m vertical accuracy is acceptable. The integrated temperature compensation eliminates the drift that plagues raw piezoresistive cells at cold weather temperatures. Designers place the top port directly exposed to ambient air (no hose needed for low-speed sensing). Unlike PCB-mount bare die sensors, the 8-SSOP package makes it easy to evaluate and rework by hand.
Được đề xuất
HVAC Refrigerant Line Pressure Monitoring
The MPXHZ6400AC6T1's media-resistant gel coating makes it suitable for HVAC refrigerant line monitoring up to 400 kPa (suitable for R-410A low-side suction lines, which sit around 800 kPa - though the high side at 3000 kPa exceeds its range). With its 0.2 V to 4.8 V output, it interfaces directly to HVAC controller ADCs for compressor health monitoring and leak detection. Per the NXP community thread, the Z suffix coating protects the MEMS die from refrigerant oils and moisture commonly found in service-line environments. Designers typically mount it on a manifold test port with a 3.3 mm tube fitting matching the C6 top-port geometry. The plus/minus 1.5 percent FS accuracy exceeds the plus/minus 5 percent typical HVAC requirement.
Được đề xuất
Motorcycle / Small Engine Fuel Pressure Monitoring
Motorcycle fuel rails operate between 200 kPa and 400 kPa, exactly within the MPXHZ6400AC6T1 measurement window, making it ideal for fuel-pressure-aware engine management. Its 12.1 mV/kPa sensitivity gives aftermarket ECU vendors visible resolution per injector pulse, useful for closed-loop fuel trim. The 5 V ratiometric output matches typical ECU analog input stages. Mounting via top-port tube fitting attaches directly to the fuel rail test port. Compared to bare strain-gauge cells, the integrated signal conditioning removes the need for instrumentation amplifier design - a major time-saver for small-volume ECU makers. The media-resistant gel survives E10/E85 ethanol-blended fuel exposure.
Được đề xuất
Medical Respiratory / CPAP Pressure Monitoring
The MPXHZ6400AC6T1's 20 kPa to 400 kPa window covers CPAP therapeutic pressures (typically 40 kPa to 200 kPa on the patient side) with headroom for safety. Its plus/minus 1.5 percent full-scale accuracy exceeds the plus/minus 5 percent spec required for therapy feedback loops. The analog 0.2 V to 4.8 V output interfaces with low-power MCU ADCs while drawing minimal supply current, preserving battery life in portable CPAP designs. Per the product description data, the device is commonly used in medical pressure-sensing applications. The media-resistant gel protects the die from condensed moisture in respiratory circuits. Designers must include additional biocompatibility validation per ISO 18562 for the full medical device qualification.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MPXHZ6400AC6T1 — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | MPXH6400AC6T1 | MPXH6400AC6U | MPXHZ6400AC6U | MPXH6400AC7T1 | MPXHZ6400A6T1 |
|---|---|---|---|---|---|---|
| Brand | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors | NXP Semiconductors |
| Package | 8-SSOP (top port) | 8-SSOP (top port) - same | 8-SSOP (top port) - same | 8-SSOP (top port) - same | 8-SSOP (top port) - same | 8-SOIC (8-pin) |
| Pressure Range | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa | 20 kPa to 400 kPa |
| Sensitivity | 12.1 mV/kPa | 12.1 mV/kPa | 12.1 mV/kPa | 12.1 mV/kPa | 12.1 mV/kPa | 12.1 mV/kPa |
| Media-Resistant Gel | Yes (Z suffix) | No | No | Yes (Z suffix) | No | Yes (Z suffix) |
| Packaging | Tape & Reel (T1) | Tape & Reel (T1) | Tube/Rail (U) | Tube/Rail (U) | Tape & Reel (T1) | Tape & Reel (T1) |
| Output Voltage | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V | 0.2 V to 4.8 V |
| Accuracy | plus/minus 1.5% FS | plus/minus 1.5% FS | plus/minus 1.5% FS | plus/minus 1.5% FS | plus/minus 1.5% FS | plus/minus 1.5% FS |
Bảo phân biệt quan trọng
- Media-resistant gel coating for harsh environments (vsMPXH6400AC6T1)
- Single-port top-port geometry suitable for hose attachment (vsMPXHZ6400A6T1)
- On-chip calibration removes per-board trimming (vsDiscrete piezoresistive bridge + instrumentation amp)
- Wide operating temperature range supports engine bay and HVAC (vsMPXHZ6400AC6U (same part, tube packaging))
Ghi chú thiết kế
The MPXHZ6400AC6T1 draws its operating current from the Vcc pin and its output is ratiometric to the supply. Decouple Vcc with a 100 nF X7R ceramic placed within 5 mm of the pin, plus a 1 uF bulk capacitor for high-frequency noise rejection. If the ADC reference tracks Vcc, no calibration adjustment is needed; if it uses a separate precision reference, apply scaling factor Vcc_actual / 5.0 V in firmware. Typical supply current is around 6 mA - low enough to share a switching regulator rail without LC filtering.
Place the 8-SSOP package so the top pressure port has clearance for a 3.3 mm (0.13 inch) tube fitting. Allow at least 7 mm vertical clearance above the port for hose attachment. Keep high-current traces (motor drivers, LED strings) at least 5 mm away from the analog output trace to avoid coupled noise; add a ground guard ring around Vout. Vcc trace width should be at least 0.3 mm to limit voltage drop. Avoid mounting the sensor over a cutout - it needs solid copper pour for thermal and mechanical stability.
The 12.1 mV/kPa sensitivity means kPa-level pressure changes produce only mV-level output deltas. Route Vout on an inner PCB layer with continuous ground plane above and below, and use a 10-100 kHz low-pass RC filter at the ADC input (R of 1 kohm, C of 100 nF typical) to reject high-frequency noise without adding phase lag. Avoid placing the sensor near WiFi/Bluetooth antennas and switching regulator inductors - the analog output is unbuffered at high impedance and susceptible to RF pickup. Estimated: with R=1 kohm and C=100 nF, the filter cutoff is at approximately 1.6 kHz.
Do not apply more than the 5.36 V maximum supply voltage - the integrated bipolar op-amp and thin-film resistors lack overvoltage protection. Do not apply reverse pressure to the top port; the media-resistant gel coating protects against harsh media but not against mechanical overpressure beyond 400 kPa. Do not assume the output is ground-referenced; the 0.2 V offset at 20 kPa means the output is not zero at minimum range. Always reference the datasheet's transfer function: Vout = Vcc * (0.0022 * P + 0.04) approximately.
Thông tin tuân thủ
RoHS compliant per NXP product page. AEC-Q100 qualification not listed for this pressure sensor variant - refer to MPXHZ6400AC6U automotive variant for AEC-Q100 confirmed grades. Media-resistant Z-suffix gel is halogen-free per NXP documentation but document not retrieved, marked as unknown pending datasheet confirmation.
