MAX11339ATJ+T - 10-Bit 500ksps 8-Ch SAR ADC | Maxim Integrated
MPN: MAX11339ATJ+T ✓ פעילMAX11339ATJ+T סקירה
What is a SAR ADC? A successive approximation register ADC is a type of analog-to-digital converter that uses an iterative binary-search algorithm against an internal or external DAC to convert an analog input into a digital code. SAR ADCs deliver deterministic latency, no pipeline delay, and excellent DC accuracy, placing them in the hierarchy: SAR ADC -> ADC -> data converter -> mixed-signal IC. The MAX11339 family integrates an analog input multiplexer and track-and-hold, allowing one ADC core to sequentially sample many channels while preserving full sample-rate performance per channel.
Key features include an integrated 4 or 8 input multiplexer, dedicated track-and-hold amplifier with 1:1 MUX:S&H:ADC ratio, SPI / DSP-compatible digital interface, and access to the post-mux analog front end for external signal conditioning such as programmable gain or filtering. The wide input range spans the analog supply rails, and the reference voltage is supplied externally to allow full-scale input scaling to match sensor or signal levels.
Typical applications include industrial process control loops, multichannel data acquisition systems, automotive sensor monitoring, and embedded instrumentation front ends. The deterministic conversion latency also makes the part well suited to closed-loop control systems where predictable timing is required.
When designing the input chain, place an RC anti-aliasing filter on each channel as close to the input pin as possible, and bypass the analog and digital supplies with 100 nF plus 10 uF ceramic capacitors. Drive the inputs through a low-impedance buffer if the source impedance exceeds 1 kohm to avoid conversion errors caused by incomplete settling of the internal S&H.
חלופות תחליף ישיר עבור MAX11339ATJ+T — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם MAX11339ATJ+T (אותו גורם צורה וטביעת רגל) — שונים ב Input Type, Package, Operating Temperature, Resolution, Data Interface.
MAX11321ATJ+T
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←MAX11324ATJ+T
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←MAX11332ATJ+T
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←MAX11340ATJ+T
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
MAX11164ETC+T
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←MAX11339ATJ+T דירוגים מרביים ומאפיינים חשמליים
| רזולוציה | 10 bit |
| Number of Channels | 4 or 8 input (single-ended / pseudo-differential / differential) |
| קצב דגימה | 500 ksps |
| ADC Architecture | SAR (Successive Approximation Register) |
| Number of ADC Cores | 1 |
| MUX:S&H:ADC Ratio | 1:1 |
| Data Interface | SPI, DSP-compatible serial |
| Reference Type | External |
| Input Type | Differential, Pseudo-Differential, Single-Ended |
| Configuration | MUX-S/H-ADC |
| מארז | 32-TQFN (5x5 mm) with exposed pad |
| Terminal Form | No Lead |
| Temperature Grade | Automotive |
| סוג הרכבה | Surface Mount |
מדריך תצורת פינים של MAX11339ATJ+T 32-tqfn (5x5 mm) with exposed pad
תצורת פינים עבור MAX11339ATJ+T (מארזת 32-tqfn (5x5 mm) with exposed pad). רכיב אנלוגי זה כולל פיני כניסה, יציאה ואספקת מתח. יש לעיין בגיליון הנתונים של היצרן לתצורות פיני איפוס היסט, פיצוי והפעלה. אידיאלי למעגלי עיצוב אותות ומגברים.
אין נתוני פריסת פינים מפורטים עבור MAX11339ATJ+T.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
MAX11339ATJ+T מתאים עבור 6 יישוםs: Industrial Process Control Loops, Automotive Sensor Monitoring, Multichannel Data Acquisition Systems, Medical Monitoring Front Ends, Embedded Instrumentation, Power Management and Battery Monitoring.
Industrial Process Control Loops
The MAX11339ATJ+T is well suited to industrial process control loops requiring multi-channel analog monitoring with deterministic conversion latency. Its 500 ksps sample rate combined with 8 input channels allows simultaneous reading of pressure, temperature, flow, and level transmitters at update rates exceeding 10 kHz per channel. The SAR architecture provides no pipeline delay, enabling tight feedback loop closures critical for valve and actuator control. The SPI / DSP-compatible interface simplifies integration with industrial DSPs and microcontrollers, while the external reference allows scaling for 4-20 mA current loop receivers or 0-10 V transducer outputs.
מומלץ
Automotive Sensor Monitoring
The MAX11339ATJ+T's automotive temperature grade (-40 C to +125 C) qualifies it for vehicle sensor monitoring applications including battery management, HVAC temperature sensing, and body-control analog inputs. The 8-channel mux supports multi-sensor scanning with one ADC, while the 10-bit resolution meets the precision needs of position, current, and thermal sensors. The SAR architecture's deterministic latency enables hard-real-time engine and chassis control loops, and the 32-TQFN package with exposed thermal pad withstands automotive vibration and thermal stress. The SPI interface connects directly to automotive MCUs and DSPs without glue logic.
מומלץ
Multichannel Data Acquisition Systems
The MAX11339ATJ+T is ideal for portable and benchtop data acquisition systems requiring simultaneous sampling of multiple analog sources. Its 500 ksps throughput and 8 input channels support scan rates above 60 kHz per channel, fast enough for vibration analysis, audio-bandwidth instrumentation, and scientific data logging. The external reference accommodates high-precision voltage references (such as the MAX6126) for laboratory-grade absolute accuracy, while the SAR architecture ensures the low-latency response required for trigger and event-capture applications. The TQFN-32 5x5 mm footprint simplifies integration into compact DAQ module designs.
מומלץ
Medical Monitoring Front Ends
The MAX11339ATJ+T serves multi-parameter patient monitoring equipment by digitizing biosignal channels including ECG, SpO2, respiration, and body temperature with its 8 single-ended or differential analog inputs. The 10-bit resolution and 500 ksps sample rate comfortably cover audio-bandwidth ECG bandwidths (typically 0.05-150 Hz after DSP decimation), while the SAR architecture's deterministic latency prevents timing artifacts in synchronized multi-channel recordings. The low-power design extends battery life in portable patient monitors, and the post-mux external conditioning access permits insertion of patient-protection and gain stages between the multiplexer output and the ADC input.
מומלץ
Embedded Instrumentation
The MAX11339ATJ+T fits embedded instrumentation front ends such as oscilloscope-like probes, programmable logic controllers, and industrial test equipment requiring multi-channel analog capture at deterministic sample timing. Its SPI interface supports high-speed data transfer to FPGAs and microcontrollers, while the SAR architecture's lack of pipeline delay suits real-time triggering and synchronous sampling use cases. The external reference permits calibration scaling in test-and-measurement applications, and the automotive temperature grade plus small TQFN package supports deployment in confined enclosures. Pre-conditioning is straightforward given post-mux external conditioning access.
מומלץ
Power Management and Battery Monitoring
The MAX11339ATJ+T is a good fit for battery management systems that need to monitor multiple cell voltages, pack currents, and temperatures in series-stack battery packs. The 8-channel differential input mode allows direct measurement across stacked battery cells with ground-referenced common-mode handling, while the 500 ksps rate supports fast over-current and short-circuit detection. The SPI interface connects to battery management MCUs and DSPs, and the SAR architecture provides deterministic latency required for synchronous cell balancing. The automotive-grade temperature rating suits EV and industrial energy storage deployments.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור MAX11339ATJ+T — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | MAX11321ATJ+T | MAX11324ATJ+T | MAX11332ATJ+T | MAX11340ATJ+T | MAX11164ETC+T |
|---|---|---|---|---|---|---|
| Brand | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated | Analog Devices / Maxim Integrated |
| Package | 32-TQFN (5x5 mm) | 32-TQFN (5x5 mm) - same | 32-TQFN (5x5 mm) - same | 32-TQFN (5x5 mm) - same | 32-TQFN (5x5 mm) - same | TQFN equivalent - same family footprint |
| Data Interface | SPI / DSP-compatible | SPI | SPI | SPI | SPI / DSP-compatible | SPI |
| Reference Type | External | External | External | External | External | External |
| Architecture | SAR | SAR | SAR | SAR | SAR | SAR |
מבדילים עיקריים
- Highest sample rate in the 10-bit 8-channel TQFN-32 family (לעומתMAX11321ATJ+T)
- 10-bit resolution for lower-cost applications where 12 bits are not required (לעומתMAX11340ATJ+T)
- Post-mux external signal conditioning access (לעומתMAX11164ETC+T)
הערות תכנון
Place the input anti-aliasing RC network (typically 10 ohm to 100 ohm and a few nF of capacitance) as close to each analog input pin as possible to limit induced noise pickup. The exposed thermal pad on the TQFN-32 package must be soldered to a continuous ground plane on the top or bottom PCB layer for thermal dissipation and low-impedance ground return.
Separate the analog and digital ground planes and join them at a single point beneath or near the ADC. Route digital lines (SCLK, DOUT, DIN, CS) away from the analog input traces and bypass capacitor returns, and keep the analog supply trace short and wide to minimize IR drop. Add 100 nF plus 10 uF ceramic bypass capacitors directly on the AVDD and DVDD pins.
If the source impedance of the analog signal exceeds approximately 1 kohm, the internal track-and-hold may not fully settle within the acquisition window, causing conversion errors. Either reduce the source impedance with a buffer amplifier or increase the acquisition time by reducing the sample rate. Validate that the external reference voltage stays within the device's specified range under load.
מידע על תאימות
Compliance flags not present in the verified web data snippets. RoHS, REACH, AEC-Q100, lead-free and halogen-free status should be verified against the manufacturer datasheet before design-in.
