MAX1030BETI+ - 10-Bit 300ksps ADC w/ FIFO, Temp Sensor | Maxim
MPN: MAX1030BETI+ ✓ Hoạt độngMAX1030BETI+ Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho MAX1030BETI+ — 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 MAX1030BETI+ (cùng hình factor và footprint) — khác nhau ở Input Type, Number of Input Channels, Operating Temperature Range, Package, RoHS Status.
MAX1030BETI+T
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1030BETI
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1030BEEG+
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
MAX1030BCEG+TG002
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MAX1030BCEG+TG002
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →MAX1030BETI+ Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Tỷ lệ lấy mẫu | 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 |
| Khoảng nhiệt độ hoạt động | -40C to +85C (industrial) |
| Hộp | 28-TQFN (5x5 mm) with exposed pad |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | RoHS Compliant |
| Lead Free | Yes |
| Cấp MSL | 1 |
Cấu hình chân MAX1030BETI+
| Chân 1 | AIN15 — Analog input channel 15 (single-ended or differential positive) |
| Chân 2 | AIN14 — Analog input channel 14 |
| Chân 3 | AIN13 — Analog input channel 13 |
| Chân 4 | AIN12 — Analog input channel 12 |
| Chân 5 | AIN11 — Analog input channel 11 |
| Chân 6 | AIN10 — Analog input channel 10 |
| Chân 7 | AIN9 — Analog input channel 9 |
| Chân 8 | AIN8 — Analog input channel 8 |
| Chân 9 | GND — Analog ground |
| Chân 10 | AVDD — Analog supply voltage (+5 V nominal) |
| Chân 11 | REF — Reference I/O - internal 4.096 V or external reference input |
| Chân 12 | AIN0 — Analog input channel 0 |
| Chân 13 | AIN1 — Analog input channel 1 |
| Chân 14 | AIN2 — Analog input channel 2 |
| Chân 15 | AIN3 — Analog input channel 3 |
| Chân 16 | AIN4 — Analog input channel 4 |
| Chân 17 | AIN5 — Analog input channel 5 |
| Chân 18 | AIN6 — Analog input channel 6 |
| Chân 19 | AIN7 — Analog input channel 7 |
| Chân 20 | DVDD — Digital supply voltage (+3 V nominal) |
| Chân 21 | DGND — Digital ground |
| Chân 22 | DOUT — Serial data output (SPI) |
| Chân 23 | SSTR — Serial interface strobe / chip select |
| Chân 24 | SCLK — Serial clock input |
| Chân 25 | CNVST — Conversion start input |
| Chân 26 | EOC — End-of-conversion output |
| Chân 27 | NC — Not connected (per datasheet) |
| Chân 28 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
MAX1030BETI+ phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho MAX1030BETI+ — 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 | 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 |
Bảo phân biệt quan trọng
- Integrated FIFO buffers host interrupts (vsMAX1030BETI (no FIFO variant not available, FIFO is integrated))
- Lead-free RoHS-compliant terminal finish (vsMAX1030BETI (without +))
- TQFN package with exposed thermal pad (vsMAX1030BEEG+ (QSOP-24))
Ghi chú thiết kế
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.
Thông tin tuân thủ
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.
