MAX1306ECM+T - 12-Bit 1.075Msps 2-Ch ADC | Maxim Integrated
料号： MAX1306ECM+T ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.84 | $12.84 |
| 10 | $11.55 | $115.50 |
| 100 | $10.27 | $1,027.00 |
| 500 | $9.21 | $4,605.00 |
| 1,000 | $8.19 | $8,190.00 |
MAX1306ECM+T 概述
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that converts real-world analog voltages into discrete digital codes for processing by microcontrollers, DSPs, or FPGAs. The MAX1306 belongs to the simultaneous-sampling SAR ADC category — successive approximation register (SAR) ADCs that can sample multiple channels at exactly the same instant, which is critical for polyphase motor control, vibration analysis, and power-line monitoring where phase relationships between channels must be preserved. In the broader product hierarchy, the MAX1306 sits under ADC -> Data Converter -> Mixed-Signal IC -> Semiconductor.
Key performance features include 12-bit resolution, 1.075 Msps per channel throughput, true bipolar input ranges of ±10 V and ±5 V (plus unipolar 0 to +5 V), a low-impedance input architecture that tolerates ±25 V overvoltage without damage, and internal or external reference flexibility. The device operates from a single +5 V analog supply and a +3 V to +5 V digital supply, drawing modest quiescent current suitable for portable instrumentation.
The architectural implementation combines simultaneous sampling with input protection and signal conditioning on-chip, eliminating the need for external op-amp buffers or attenuators in most applications. The integrated voltage reference and track-and-hold circuitry reduce external component count, while the parallel digital interface simplifies connection to microcontrollers and DSPs.
Typical applications include three-phase power-line monitoring, industrial process control, vibration analysis, motor control, and multi-axis data acquisition systems. Designers select the MAX1306 when simultaneous-sampling of multiple analog inputs is mandatory and the dynamic range of the system lies within the 12-bit resolution ceiling.
When designing with this part, the analog and digital supplies must be decoupled separately and the AGND/DGND plane strategy must follow the datasheet layout guidelines. The device supports both internal and external reference modes, so reference stability directly determines absolute accuracy.
This page synthesizes distributor pricing, parametric drop-in alternatives, and design notes for the MAX1306ECM+T that complement — but do not replace — the Maxim datasheet.
直接替换替代料： MAX1306ECM+T ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： MAX1306ECM+T （相同外形与封装尺寸） ——差异在于 Analog Input Range, Number of Input Channels, Operating Temperature Range, Package, Resolution.
快速对比工具——选择替代料号进行并排对比：
MAX1306ECM+
✅ 直接替换📋 参考替代料（不在目录中）
MAX1306ECM/V+
✅ 直接替换📋 参考替代料（不在目录中）
MAX1305ECM+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX1307ECM+T
✅ 直接替换📋 参考替代料（不在目录中）
MAX1304ECM/V+
✅ 直接替换✓ 有现货
$12.5 / 个
查看数据手册 →MAX1306ECM+T 最大额定值与电气特性
| 分辨率 | 12 bits |
| Number of Input Channels | 2 (simultaneous sampling) |
| 采样率 | 1.075 Msps |
| ADC Architecture | SAR (Successive Approximation Register) |
| Analog Input Range | ±10 V, ±5 V, 0 to +5 V (software configurable) |
| Input Overvoltage Protection | ±25 V without damage |
| Analog Supply Voltage | +4.75 V to +5.25 V (typical +5 V) |
| Digital Supply Voltage | +2.7 V to +5.25 V (typical +3 V or +5 V) |
| Internal Reference | 2.5 V or 3.0 V (pin-selectable) |
| Data Interface | Parallel |
| 工作温度范围 | -40 C to +85 C (industrial) |
| 封装 | 48-LQFP (7 mm x 7 mm) |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Lead Free | Yes |
MAX1306ECM+T 48-lqfp (7 mm x 7 mm) 引脚配置指南
MAX1306ECM+T（48-lqfp (7 mm x 7 mm) 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： MAX1306ECM+T.
请参阅 数据手册 以查看完整引脚配置。
典型应用
MAX1306ECM+T 适用于 6 应用s: Three-Phase Power Line Monitoring, Multi-Axis Vibration Analysis, Industrial Process Control PLC Analog Inputs, Motor Control Current Sensing, Medical Patient Monitoring Signal Acquisition, Data Acquisition Systems (DAQ) / Test & Measurement.
Three-Phase Power Line Monitoring
The MAX1306ECM+T fits three-phase power-line monitoring because its two simultaneous-sampling 12-bit channels capture line voltages and currents at the exact same instant, eliminating the phase skew that would otherwise distort computed real and reactive power. Each channel runs up to 1.075 Msps — more than enough for harmonic analysis up to several kHz on 50/60 Hz mains. The ±10 V input range connects directly to PT/CT-derived signals through current transducers, while the ±25 V input protection tolerates inductive transients common on the AC mains side.
推荐
Multi-Axis Vibration Analysis
For structural and machine-condition vibration analysis the MAX1306ECM+T is a strong fit because the simultaneous-sampling architecture preserves inter-axis phase information required for FFT modal analysis. Two accelerometers (or two axes of a tri-axis sensor) share the same conversion instant, so vibration harmonics do not drift across channels. The 1.075 Msps per channel ceiling pushes well past typical 10 kHz MEMS vibration bandwidth, and the ±5 V input range accepts bipolar accelerometer signals directly.
推荐
Industrial Process Control PLC Analog Inputs
Programmable logic controller (PLC) analog input modules use the MAX1306ECM+T to digitize 4-20 mA-derived ±10 V signals from field transmitters. The 2-channel count suits compact PLC cards, and the ±10 V/±5 V software-selectable inputs cover both legacy and modern 24 V-scaled transducer outputs. Integrated ±25 V overvoltage protection shields the module from mis-wired field wiring, a frequent failure mode in industrial installations.
推荐
Motor Control Current Sensing
Servo and variable-frequency drive (VFD) current loops benefit from the MAX1306ECM+T's simultaneous sampling because the two channels can digitize a phase current together with the DC-link voltage at the exact same instant for field-oriented control (FOC). The 1.075 Msps throughput is comfortably above the 10-20 kHz current-loop bandwidth used in modern FOC algorithms, while ±10 V inputs accept leg-shunt amplifier outputs directly without external attenuation.
推荐
Medical Patient Monitoring Signal Acquisition
Patient-monitoring front ends (ECG, SpO2, EEG subsystems) use the MAX1306ECM+T for low-speed, simultaneous multi-lead sampling where channel-to-channel phase coherence impacts waveform analysis. Two channels capture differential leads while the 12-bit resolution and integrated reference keep signal conditioning simple. Bipolar ±5 V inputs accept instrumentation-amp outputs directly, reducing board area in compact portable monitors.
推荐
Data Acquisition Systems (DAQ) / Test & Measurement
Benchtop and modular DAQ front ends deploy the MAX1306ECM+T for 2-channel simultaneous acquisition where 12-bit resolution is sufficient. The ±10 V input range directly accepts standard industrial transducer levels, the parallel interface simplifies FPGA-based timing control, and the 1.075 Msps throughput covers audio-bandwidth and ultrasonic-front-end measurements. Designers can stack multiple MAX1306 ICs on a single PCIe card to scale channel count without changing FPGA firmware substantially.
推荐
推荐产品汇总
工程参考数据： MAX1306ECM+T ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | MAX1306ECM+ | MAX1306ECM/V+ | MAX1305ECM+T | MAX1307ECM+T | MAX1304ECM/V+ |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 48-LQFP (7x7) | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same | 48-LQFP (7x7) - same |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Input Channels | 2 (simultaneous) | 2 (simultaneous) | 2 (simultaneous) | 4 (simultaneous) | 8 (simultaneous) | 8 (simultaneous) |
| Sampling Rate | 1.075 Msps / channel | 1.075 Msps / channel | 1.075 Msps / channel | 1.075 Msps / channel | 1.075 Msps / channel | 1.075 Msps / channel |
| Analog Input Range | ±10 V / ±5 V / 0-5 V | ±10 V / ±5 V / 0-5 V | ±10 V / ±5 V / 0-5 V | ±10 V / ±5 V / 0-5 V | ±10 V / ±5 V / 0-5 V | ±10 V / ±5 V / 0-5 V |
| Input Overvoltage | ±25 V | ±25 V | ±25 V | ±25 V | ±25 V | ±25 V |
| ADC Architecture | SAR | SAR | SAR | SAR | SAR | SAR |
| Packaging Form | Tape & Reel | Tray | Tray | Tape & Reel | Tape & Reel | Tray |
关键差异点
- True simultaneous sampling of 2 channels in a 48-LQFP package （对比 MAX1306ECM+)
- 4-channel headroom on the same pin footprint （对比 MAX1305ECM+T)
- 8-channel maximum density on the same pin footprint （对比 MAX1307ECM+T)
设计说明
Decouple AVDD and DVDD with separate 10 µF tantalum and 0.1 µF ceramic capacitor pairs placed within 5 mm of the supply pins. Provide a continuous AGND plane on the top layer under the analog input traces, and route AGND and DGND together only at the MAX1306 GND pin. Recommended: tie AGND and DGND external to the package using a star ground or controlled-impedance split-plane topology to avoid ground-noise coupling into the analog inputs.
Do not exceed 5.25 V on AVDD. Exceeding this absolute maximum can permanently damage the device and is the most common return-cause of MAX1306 failures. Pull-down unused analog input channels to AGND through 100 kΩ resistors to prevent floating-input excess current draw and false conversions. Estimated: at AVDD = +5.25 V (max), the supply current can rise ~5 mA compared to the 5.0 V typical operating point.
Keep the analog input traces and the parallel digital bus traces separated by at least 5 mm or guarded by AGND to minimize capacitive coupling that would degrade SNR. Place the reference bypass capacitor (typically 1 µF X7R) directly across REF and AGND as close as physically possible to the package. Recommended: route the parallel D0-D11 bus on a single inner layer separated from the analog plane by the AGND/DGND split.
Source impedance above 1 kΩ on the analog input will degrade the ADC's AC performance; drive the MAX1306 inputs from low-impedance op-amp buffers (such as the MAX4250) for best THD and SNR. The simultaneous-sampling benefit is only realized when the source impedance and track-mode bandwidth are matched across channels — else skew reappears in the analog front end rather than the converter.
合规信息
RoHS compliant and lead-free per Maxim Integrated product page and distributor listings. REACH and conflict-minerals declarations are available on the manufacturer environmental compliance page. The MAX1306ECM/V+ and MAX1304ECM/V+ automotive-screened variants are available for AEC-Q100-adjacent environments.
