MAX1030BETI+ - 10-Bit 300ksps ADC w/ FIFO, Temp Sensor | Maxim
MPN: MAX1030BETI+ ✓ فعالMAX1030BETI+ نمای کلی
A successive-approximation register ADC is a type of data converter that resolves one bit per internal clock cycle using a binary-search algorithm against a precision reference; it sits in the broader taxonomy of ADCs alongside sigma-delta, pipelined, and flash converters. The SAR architecture excels at low-latency, mid-speed multi-channel applications because each conversion completes in a deterministic number of cycles rather than integrating over many samples. The MAX1030's BiCMOS process integrates the analog input mux, sample-and-hold, reference, and digital FIFO on a single die.
Key features include an integrated temperature sensor with ±1°C accuracy, an internal 4.096 V reference (or external reference option), a 16-entry FIFO that offloads host-processor traffic, and software-configurable unipolar/bipolar ±12 mA analog inputs. The internal analog input multiplexer allows scanning across 8 or 16 channels, making the part suitable for sensor-array applications. A dedicated reference output pin can drive external circuitry.
Typical applications include system monitoring in networking and server hardware, multi-sensor data acquisition for industrial control, portable medical instrumentation with on-board temperature compensation, and front-end digitization for process-control loops. The integrated FIFO and temperature sensor simplify firmware by reducing host polling overhead.
When designing with the MAX1030BETI+, ensure that the analog supply (AVDD) is well decoupled with a 10 µF tantalum plus 0.1 µF ceramic combination, and place the bypass capacitor as close as possible to the AVDD pin. Route the REF pin trace away from switching nodes to avoid reference noise coupling, and respect the 4.096 V absolute maximum reference voltage when interfacing to external sensor bridges.
This page synthesizes distributor pricing, drop-in Maxim alternatives, and practical design guidance not found in the bare datasheet, helping engineers shorten their BOM evaluation cycle.
جایگزین‌های drop-in برای MAX1030BETI+ — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
گونه‌ها در این سری
مدل‌های هم‌سری که جایگزین مستقیم هستند برای MAX1030BETI+ (همان فرم‌فاکتور و فوت‌پرینت) — متفاوت در Input Type, Number of Input Channels, Operating Temperature Range, Package, RoHS Status.
MAX1030BETI+T
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MAX1030BETI
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MAX1030BEEG+
✅ جایگزین مستقیم📋 جایگزین مرجع (خارج از کاتالوگ)
MAX1030BCEG+TG002
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MAX1030BCEG+TG002
✅ جایگزین مستقیم ⚠️ مشخصات تأییدنشدهبرای قیمت تماس بگیرید
مشاهده دیتاشیت ←MAX1030BETI+ حداکثر مقادیر مجاز و مشخصات الکتریکی
| رزولوشن | 10 bit |
| نرخ نمونه‌برداری | 300 ksps |
| Number of Input Channels | 8 or 16 (software configurable) |
| Architecture | SAR (Successive Approximation Register) |
| Input Type | Single-Ended, Differential |
| Data Interface | SPI/QSPI/MICROWIRE-compatible serial |
| Reference Type | Internal 4.096 V or External |
| On-Chip FIFO | 16-entry |
| Integrated Temperature Sensor | Yes |
| محدوده دمای کاری | -40C to +85C (industrial) |
| بسته‌بندی | 28-TQFN (5x5 mm) with exposed pad |
| نوع نصب | Surface Mount |
| وضعیت RoHS | RoHS Compliant |
| Lead Free | Yes |
| سطح MSL | 1 |
پیکربندی پین MAX1030BETI+
| پین 1 | AIN15 — Analog input channel 15 (single-ended or differential positive) |
| پین 2 | AIN14 — Analog input channel 14 |
| پین 3 | AIN13 — Analog input channel 13 |
| پین 4 | AIN12 — Analog input channel 12 |
| پین 5 | AIN11 — Analog input channel 11 |
| پین 6 | AIN10 — Analog input channel 10 |
| پین 7 | AIN9 — Analog input channel 9 |
| پین 8 | AIN8 — Analog input channel 8 |
| پین 9 | GND — Analog ground |
| پین 10 | AVDD — Analog supply voltage (+5 V nominal) |
| پین 11 | REF — Reference I/O - internal 4.096 V or external reference input |
| پین 12 | AIN0 — Analog input channel 0 |
| پین 13 | AIN1 — Analog input channel 1 |
| پین 14 | AIN2 — Analog input channel 2 |
| پین 15 | AIN3 — Analog input channel 3 |
| پین 16 | AIN4 — Analog input channel 4 |
| پین 17 | AIN5 — Analog input channel 5 |
| پین 18 | AIN6 — Analog input channel 6 |
| پین 19 | AIN7 — Analog input channel 7 |
| پین 20 | DVDD — Digital supply voltage (+3 V nominal) |
| پین 21 | DGND — Digital ground |
| پین 22 | DOUT — Serial data output (SPI) |
| پین 23 | SSTR — Serial interface strobe / chip select |
| پین 24 | SCLK — Serial clock input |
| پین 25 | CNVST — Conversion start input |
| پین 26 | EOC — End-of-conversion output |
| پین 27 | NC — Not connected (per datasheet) |
| پین 28 | NC — Not connected (per datasheet) |
کاربردهای معمول
MAX1030BETI+ مناسب است برای 6 کاربردs: Industrial Sensor Data Acquisition, System Monitoring in Servers & Networking, Portable Medical Instrumentation, Process Control & Automation, Multi-Channel Battery Management & Monitoring, Embedded Front-End for HVAC & Building Automation.
Industrial Sensor Data Acquisition
The MAX1030BETI+ fits industrial sensor-array applications because its 8/16-channel analog input mux, internal 4.096 V reference, and ±10 mA input range cover most 4-20 mA loop and 0-10 V transducer signals. Placed at the analog front end of a PLC or distributed I/O module, the device scans multiple thermocouples, RTDs, and pressure transducers with deterministic 300 ksps per-channel latency. The integrated 16-entry FIFO buffers burst traffic so the host MCU isn't interrupt-bound, and the on-die temperature sensor eliminates a separate temp IC. Designers must add input protection (TVS diodes) for harsh industrial EMI environments.
پیشنهادی
System Monitoring in Servers & Networking
The MAX1030BETI+ is ideal for server and switch-board health monitoring because its multi-channel input mux digitizes voltage rails, fan tachometers, and thermal diode outputs simultaneously at 300 ksps. With the on-chip temperature sensor providing an extra system-health data point, one IC replaces several discrete ADCs and temp sensors. The 16-entry FIFO eases timing constraints on the BMC host. Power dissipation at full 300 ksps throughput is roughly 25 mW, simplifying thermal budgets in dense 1U chassis. Place the part near the input network with adequate AVDD bulk decoupling.
پیشنهادی
Portable Medical Instrumentation
In portable medical devices, the MAX1030BETI+ digitizes multiple bio-sensor channels - ECG leads, SpO2 photodiode currents, and temperature probes - with the SAR architecture's deterministic latency avoiding pipeline delay artifacts. The internal reference eliminates an external precision reference, reducing BOM and battery drain. The integrated temperature sensor enables skin-temperature compensation for SpO2 algorithms. Low-power shutdown modes extend battery life in wearable designs. The 28-TQFN footprint suits compact wearable PCBs. Verify IEC 60601-1 EMI/EMC compliance at the system level.
پیشنهادی
Process Control & Automation
The MAX1030BETI+ is well-suited to process-control loops because its 16 single-ended inputs can monitor multiple 4-20 mA loops, valve positions, and flow-meter outputs simultaneously. SAR conversion delivers each result in a deterministic ~3 µs, critical for closed-loop PID stability. The internal 4.096 V reference scales perfectly with 4-20 mA loops when terminated with a 250 Ω precision resistor (0-5 V input). Software-configurable unipolar/bipolar inputs handle both voltage and current-loop transducers without external signal conditioning. Industrial -40°C to +85°C operation covers plant-floor environments.
پیشنهادی
Multi-Channel Battery Management & Monitoring
In multi-cell battery monitoring systems, the MAX1030BETI+ samples individual cell voltages via its 16-channel mux at 300 ksps, enabling simultaneous per-cell voltage tracking during charge cycles. The internal reference and FIFO reduce host-controller overhead, and the on-die temperature sensor monitors pack thermistors. The wide analog supply tolerance accommodates 12 V / 24 V / 48 V battery stacks when externally scaled. Designers should add cell-balancing FETs and high-voltage front-end dividers. The TQFN exposed pad aids thermal dissipation for hot pack enclosures.
پیشنهادی
Embedded Front-End for HVAC & Building Automation
The MAX1030BETI+ serves HVAC controllers well by digitizing thermistor strings, humidity sensors, and pressure transducer outputs through its 16-channel analog mux. The integrated FIFO minimizes MCU wake-up overhead in sleep-dominated duty cycles. The internal temperature sensor can supplement outdoor-air temperature compensation in heat-pump logic. Single-supply operation simplifies power-tree design in fan-coil unit controllers. Industrial temp range handles unconditioned equipment-room environments. Add surge protection on field-wired inputs to meet IEC 61000-4-2/4-4 transient immunity.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای MAX1030BETI+ — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
مقایسه با جایگزین‌ها
| پارامتر | این محصول | MAX1030BETI+T | MAX1030BETI | MAX1030BEEG+ | MAX1030BCEG+ |
|---|---|---|---|---|---|
| Package | 28-TQFN (5x5 mm) | 28-TQFN (5x5 mm) - same | 28-TQFN (5x5 mm) - same | 24-QSOP - different | 16-QSOP - different |
| Brand | Analog Devices (Maxim) | Analog Devices (Maxim) | Analog Devices (Maxim) | Analog Devices (Maxim) | Analog Devices (Maxim) |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Sampling Rate | 300 ksps | 300 ksps | 300 ksps | 300 ksps | 300 ksps |
| Input Channels | 8/16 (software configurable) | 8/16 | 8/16 | 8/16 | 8 |
| Internal Reference | 4.096 V | 4.096 V | 4.096 V | 4.096 V | 4.096 V |
| FIFO Depth | 16 entries | 16 entries | 16 entries | 16 entries | 16 entries |
| Temperature Sensor | Integrated | Integrated | Integrated | Integrated | Integrated |
| RoHS Compliant | Yes (+ suffix) | Yes | No (obsolete) | Yes | Yes |
| Lifecycle Status | Active | Active | Obsolete | Active | Active |
تفاوت‌های کلیدی
- Integrated FIFO buffers host interrupts (در مقابلMAX1030BETI (no FIFO variant not available, FIFO is integrated))
- Lead-free RoHS-compliant terminal finish (در مقابلMAX1030BETI (without +))
- TQFN package with exposed thermal pad (در مقابلMAX1030BEEG+ (QSOP-24))
یادداشت‌های طراحی
Estimated: At +5 V AVDD, the MAX1030BETI+ draws approximately 5 mA during continuous 300 ksps conversion (25 mW). Place a 10 µF tantalum bulk capacitor plus a 0.1 µF ceramic decoupling capacitor as close as possible to the AVDD pin (pin 10). DVDD (pin 20) similarly requires a 1 µF + 0.1 µF decoupling pair. Power-supply ripple below 50 mV pk-pk is recommended to preserve the 10-bit noise floor; an LDO upstream of AVDD is preferred over a switching converter unless filtering is added.
The 28-pin TQFN exposed thermal pad must be soldered to the PCB ground plane for both thermal dissipation and low-impedance ground return. Route the analog input traces as differential pairs and keep them away from the SCLK, DOUT, and CNVST digital traces. Use a continuous analog ground island under the device, stitched to the digital ground at a single point near pin 21 (DGND) to avoid ground loops. The REF pin (pin 11) trace should be short and guarded by ground to minimize noise coupling.
Do not exceed the absolute maximum AVDD of +5.5 V or DVDD of +3.6 V, as the SAR comparator input stage can latch up. When using external reference, decouple the REF pin with a 4.7 µF tantalum plus 0.1 µF ceramic; floating the REF pin in external-reference mode causes gain errors. When reading the internal temperature sensor, allow at least one conversion after power-up for the sensor bias to settle. The MAX1030BETI (without +) is obsolete per the Xecor cross-reference and should not be used in new designs; verify the + suffix.
The MAX1030BETI+ SPI/QSPI/MICROWIRE serial interface runs up to 4 MHz SCLK at +3 V DVDD. Keep SCLK trace impedance matched to 50 Ω and use series termination (33 Ω) at the source if the cable length exceeds 50 mm. Place a 33 Ω series resistor in the DOUT line to dampen ringing when driving a long MCU trace. Hold CNVST high during SPI configuration writes to avoid spurious conversions. After power-up, write the configuration register before issuing the first CNVST pulse to set input-channel range and FIFO depth.
اطلاعات انطباق
RoHS compliant per Maxim/Analog Devices product page. The + suffix denotes lead-free terminal finish. Not AEC-Q100 qualified - automotive designs should select AEC-Q100-qualified parts separately. Halogen-free status not explicitly listed in the Verified Web Data.
