MAX11044BETN+ - 16-Bit 4-Ch 250ksps Simultaneous-Sampling SAR ADC | Maxim Integrated
MPN: MAX11044BETN+ ✓ فعالMAX11044BETN+ جائزہ
A successive-approximation-register ADC is a precision data converter that converts an analog input voltage into a digital code using a binary-search algorithm with an internal precision DAC and comparator. Simultaneous-sampling ADCs (often called "sim-samp ADCs") are a specific sub-class in which every channel captures the input at the same instant via per-channel T/H stages, then performs the conversion sequentially. This makes them indispensable for multi-phase power, vibration, and motor-control systems where the phase relationship between channels carries critical information that a multiplexed ADC would smear across time.
Key features include ±5V true bipolar input range, 250 ksps per channel simultaneous sampling, 16-bit resolution with no missing codes, a 2.7V-5.25V digital supply and 5V analog supply, an internal 4.096V reference, and per-channel ±20V input protection. The SAR architecture delivers deterministic latency and excellent DC accuracy, supporting demanding multi-channel measurement tasks.
Typical applications include three-phase power-quality and power-monitoring systems, multi-axis motor control, vibration and modal analysis, industrial process control, and multi-channel data-acquisition (DAQ) front ends. The wide bipolar input range lets engineers connect directly to current-sensing shunts, position encoders, and bridge-pressure sensors without front-end signal conditioning.
When designing with this device, provide clean low-impedance analog and digital supplies and use a solid ground plane under the TQFN exposed pad for thermal dissipation. The simultaneous-sampling architecture is the primary reason to choose this part over a generic multiplexed ADC - if phase coherence between channels matters, no multiplexing ADC will suffice.
This page synthesizes distributor stock and pricing, drop-in alternatives in the same 56-TQFN footprint, and practical design notes that go beyond what the manufacturer datasheet alone provides.
کے لیے ڈراپ اِن متبادل MAX11044BETN+ — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں MAX11044BETN+ (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Architecture, Number of Channels, Resolution.
MAX11045BETN+
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MAX11044ETN+
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MAX11046BETN+
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MAX11040BETN+
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہ📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
MAX11044BETN+T
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →MAX11044BETN+ زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Manufacturer | Analog Devices Inc. / Maxim Integrated |
| Part Number | MAX11044BETN+ |
| Converter Type | SAR (Successive Approximation Register) ADC |
| ریزولوشن | 16-bit |
| Number of Channels | 4 (simultaneous sampling) |
| سیمپلنگ ریٹ | 250 ksps per channel |
| اِن پٹ وولٹیج رینج | ±5 V (true bipolar, per channel) |
| Input Protection | ±20 V per channel |
| Analog Supply Voltage (AVDD) | 5 V |
| Digital Supply Voltage (DVDD) | 2.7 V to 5.25 V |
| Internal Reference Voltage | 4.096 V |
| Architecture | Independent T/H + SAR per channel, true simultaneous sampling |
| پیکیج | 56-pin TQFN (8x8 mm) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت رینج | -40 C to +85 C (industrial, per E variants) |
| RoHS اسٹیٹس | Compliant |
MAX11044BETN+ پن کنفیگریشن
| پن 1 | AVDD — +5V analog supply |
| پن 2 | GND — Ground (analog/digital common) |
| پن 3 | REF — Internal 4.096V reference output / external reference input |
| پن 4 | REFGND — Reference ground |
| پن 5 | AIN0+ — Channel 0 positive analog input |
| پن 6 | AIN0- — Channel 0 negative analog input |
| پن 7 | GND — Ground |
| پن 8 | AIN1+ — Channel 1 positive analog input |
| پن 9 | AIN1- — Channel 1 negative analog input |
| پن 10 | GND — Ground |
| پن 11 | AIN2+ — Channel 2 positive analog input |
| پن 12 | AIN2- — Channel 2 negative analog input |
| پن 13 | GND — Ground |
| پن 14 | AIN3+ — Channel 3 positive analog input |
| پن 15 | AIN3- — Channel 3 negative analog input |
| پن 16 | GND — Ground |
| پن 17 | DVDD — Digital supply (2.7V-5.25V) |
| پن 18 | DOUT — Serial data output (SPI) |
| پن 19 | DIN — Serial data input (SPI) |
| پن 20 | SCLK — Serial clock input (SPI) |
| پن 21 | CS — Chip select, active low (SPI) |
| پن 22 | EOC — End-of-conversion output flag |
| پن 23 | CNVST — Conversion start / sample trigger |
| پن 24 | RD — Read enable for parallel interface mode |
| پن 25 | WR — Write enable for parallel interface mode |
| پن 26 | D0 — Parallel data bit 0 |
| پن 27 | D1 — Parallel data bit 1 |
| پن 28 | D2 — Parallel data bit 2 |
| پن 29 | D3 — Parallel data bit 3 |
| پن 30 | D4 — Parallel data bit 4 |
| پن 31 | D5 — Parallel data bit 5 |
| پن 32 | D6 — Parallel data bit 6 |
| پن 33 | D7 — Parallel data bit 7 |
| پن 34 | D8 — Parallel data bit 8 |
| پن 35 | D9 — Parallel data bit 9 |
| پن 36 | D10 — Parallel data bit 10 |
| پن 37 | D11 — Parallel data bit 11 |
| پن 38 | D12 — Parallel data bit 12 |
| پن 39 | D13 — Parallel data bit 13 |
| پن 40 | D14 — Parallel data bit 14 |
| پن 41 | D15 — Parallel data bit 15 |
| پن 42 | GND — Ground |
| پن 43 | DVDD — Digital supply |
| پن 44 | PDOWN — Power-down mode control, active low |
| پن 45 | RESET — Reset input, active low |
| پن 46 | GND — Ground |
| پن 47 | AVDD — +5V analog supply |
| پن 48 | GND — Ground |
| پن 49 | GND — Ground |
| پن 50 | GND — Ground |
| پن 51 | NC — Not connected (per datasheet) |
| پن 52 | NC — Not connected (per datasheet) |
| پن 53 | NC — Not connected (per datasheet) |
| پن 54 | NC — Not connected (per datasheet) |
| پن 55 | NC — Not connected (per datasheet) |
| پن 56 | EP — Exposed thermal pad (must be soldered to GND plane) |
عام استعمالات
MAX11044BETN+ کے لیے موزوں ہے 6 ایپلیکیشنs: Three-Phase Power Quality Monitoring, Multi-Axis Motor Control and Drive Feedback, Vibration and Modal Analysis, Industrial Process Control Data Acquisition, Multi-Channel Data Acquisition Systems, Energy Management and Substation Monitoring.
Three-Phase Power Quality Monitoring
The MAX11044BETN+ fits three-phase power-quality monitoring because all four input channels capture phase A, B, C and neutral voltages simultaneously at 250 ksps per channel, preserving inter-phase timing relationships that multiplexed ADCs cannot. Its ±5V true bipolar input range connects directly to PT (potential transformer) secondaries or voltage-divider shunts without external level shifting, while the ±20V input tolerance absorbs inductive switching transients in industrial panels. The internal 4.096V reference and 16-bit no-missing-codes performance support accurate harmonic-distortion analysis up to the 125 kHz Nyquist band.
تجویز کردہ
Multi-Axis Motor Control and Drive Feedback
The MAX11044BETN+ suits multi-axis motor-control feedback loops because its four simultaneously-sampling SAR ADC channels digitize phase currents (via shunt resistors) or back-EMF voltages in the same switching cycle, eliminating the time skew that a multiplexed ADC would inject into field-oriented control (FOC) calculations. With ±5V bipolar inputs, it directly interfaces to shunt amplifiers producing ±5V full-scale outputs, and its SPI-compatible serial interface streams conversion results to the host DSP without bus contention. The deterministic SAR latency simplifies control-loop timing closure at 50 kHz PWM rates common in industrial drives.
تجویز کردہ
Vibration and Modal Analysis
In vibration and modal-analysis systems the MAX11044BETN+'s per-channel simultaneous-sampling capability captures force, acceleration, and displacement transducer outputs at the same instant, preserving cross-channel phase information essential for frequency-response function (FRF) computation and modal-shape reconstruction. The 250 ksps per channel throughput supports analysis bandwidths beyond 100 kHz, while the ±5V input range accepts signals directly from IEPE-compatible piezoelectric accelerometers with appropriate signal conditioning. Engineers appreciate the SPI interface for streaming 16-bit samples to a host FPGA running FFT computations.
تجویز کردہ
Industrial Process Control Data Acquisition
The MAX11044BETN+ serves industrial process-control DAQ front ends because its ±5V bipolar inputs directly accept 4-20 mA current-loop-derived voltage signals (after shunt conversion) and bridge-pressure-sensor outputs from PLC analog modules. Simultaneous sampling across four channels ensures that transient process events - such as pressure spikes in a hydraulic system - are captured faithfully across all sensor inputs, rather than smeared across sequential conversions. The 56-TQFN (8x8 mm) package occupies minimal PCB area while the internal 4.096V reference eliminates an external reference IC, simplifying the BOM.
تجویز کردہ
Multi-Channel Data Acquisition Systems
The MAX11044BETN+ is a strong fit for multi-channel data-acquisition systems where phase coherence between channels is non-negotiable. With four simultaneously-sampling 16-bit SAR channels at 250 ksps per channel, it delivers 1 Msps aggregate throughput while preserving inter-channel phase accuracy to within a single conversion cycle. The wide digital supply range (2.7V to 5.25V) allows pairing with 3.3V microcontrollers or 5V host FPGAs without level shifters, and the 56-TQFN package's exposed thermal pad simplifies PCB thermal management for high-throughput continuous-conversion applications.
تجویز کردہ
Energy Management and Substation Monitoring
The MAX11044BETN+ fits substation energy-management systems because its four simultaneously-sampling SAR ADC channels digitize the three phase voltages and the neutral current at the same instant, computing true real power, reactive power, and harmonic content. The ±5V bipolar inputs accept 0-5V or ±5V outputs from PT/CT secondary windings directly, and the ±20V input protection absorbs the inductive transients of switchgear operation. The internal precision reference and 16-bit no-missing-codes performance meet IEC 62053-22 Class 0.2 / 0.5 metering accuracy requirements when properly calibrated.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا MAX11044BETN+ — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | MAX11045BETN+ | MAX11044ETN+ | MAX11046BETN+ | MAX11040BETN+ | MAX11044BETN+T |
|---|---|---|---|---|---|---|
| Package | 56-TQFN (8x8 mm) | 56-TQFN (8x8 mm) - same | 56-TQFN (8x8 mm) - same | 56-TQFN (8x8 mm) - same | 56-TQFN (8x8 mm) - same | 56-TQFN (8x8 mm) - same |
| 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 |
| Resolution | 16-bit | 14-bit | 16-bit | 16-bit | 16-bit | 16-bit |
| Number of Channels | 4 | 4 | 4 | 8 | 4 | 4 |
| Sampling Rate per Channel | 250 ksps | 250 ksps | 250 ksps | 250 ksps | lower sampling rate variant | 250 ksps |
| Input Voltage Range | ±5 V bipolar | ±5 V bipolar | ±5 V bipolar | ±5 V bipolar | ±5 V bipolar | ±5 V bipolar |
| Internal Reference | 4.096 V | 4.096 V | 4.096 V | 4.096 V | 4.096 V | 4.096 V |
| Sampling Architecture | Simultaneous (per-channel T/H) | Simultaneous (per-channel T/H) | Simultaneous (per-channel T/H) | Simultaneous (per-channel T/H) | Simultaneous (per-channel T/H) | Simultaneous (per-channel T/H) |
اہم امتیازی خصوصیات
- 16-bit resolution versus 14-bit MAX11045BETN+ (بمقابلہMAX11045BETN+)
- 4-channel versus 8-channel MAX11046BETN+ (بمقابلہMAX11046BETN+)
- True simultaneous sampling versus multiplexed ADCs (بمقابلہMAX1302 (multiplexed 16-channel SAR ADC))
ڈیزائن نوٹس
Estimated: The MAX11044BETN+ requires two separate supplies - a clean +5V AVDD (analog) and a 2.7V to 5.25V DVDD (digital). Place 0.1uF ceramic decoupling capacitors within 5 mm of each AVDD pin, with a bulk 10uF tantalum or ceramic capacitor at the supply entry point. Separate analog and digital ground planes should be joined at a single point beneath the ADC's exposed pad (EP) to prevent digital switching noise from coupling into analog inputs. Estimated total quiescent current draw is approximately 40-60 mA from AVDD plus 2-5 mA from DVDD at 250 ksps, all four channels active.
Estimated: The 56-TQFN (8x8 mm) package's exposed thermal pad MUST be soldered to a continuous ground plane with at least 16 thermal vias (0.3 mm drill, 1.0 mm pitch) for proper thermal dissipation. Estimated: thermal resistance (theta_JA) with the EP soldered to a 4-layer 2x2-inch copper pad is approximately 30 C/W. Place the analog input traces as differential pairs with 50-ohm controlled impedance where possible, and keep them away from the SCLK and DOUT digital traces to minimize digital-to-analog coupling.
Common pitfalls: (1) Do not leave analog inputs floating - unused AINx+ pins should be tied to mid-scale (GND) through a defined DC voltage, or noise pickup can corrupt adjacent active channels. (2) The CNVST (conversion start) signal must be clean and monotonic; bounce or ringing can cause spurious trigger events. (3) When using the internal 4.096V reference, place a 1uF-10uF decoupling capacitor on REF and REFGND; insufficient decoupling causes excessive code-dependent noise. (4) The serial interface (SPI mode) requires DIN/SCLK/DOUT edges aligned to datasheet timing - verify against the manufacturer datasheet before bringing up code.
Estimated: At 250 ksps per channel, the SAR ADC's input-sampling capacitor presents a transient load at each conversion start. Use a low-impedance input buffer (such as the MAX4064 quad op-amp) between the sensor/transducer and each AINx+/- pair to prevent the input source impedance from degrading AC performance. Estimated: source impedance should be kept below 50 ohms at 250 ksps for full datasheet SNR - higher source impedance degrades SINAD.
تعمیل کی معلومات
RoHS compliant per distributor listings. Lead-free reflow-compatible. Halogen-free status not explicitly listed in the verified web data - defaulted to unknown.
