MAX1283AEEE - 12-Bit 300ksps 4-Ch Serial ADC | Maxim Integrated
料号： MAX1283AEEE ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $12.17 | $12.17 |
| 10 | $11.2 | $112.00 |
| 100 | $9.85 | $985.00 |
| 500 | $8.4 | $4,200.00 |
| 1,000 | $7.1 | $7,100.00 |
MAX1283AEEE 概述
An ADC (analog-to-digital converter) is an integrated-circuit component that translates a real-world analog voltage or current into a discrete digital code. The MAX1283 family belongs to the successive-approximation register (SAR) ADC category, which is a sub-type of data-converter ICs in the broader mixed-signal semiconductor hierarchy: ADC -> data converter -> data-acquisition IC -> semiconductor. SAR ADCs are valued for their deterministic latency, low power consumption, and ability to operate from low-voltage single supplies, making them the default choice for precision multi-channel embedded sensing applications.
Key features of the MAX1283AEEE include 300ksps guaranteed throughput (400ksps for the MAX1283 internal characterization), an internal 2.5V reference, software-configurable unipolar/bipolar and single-ended/pseudo-differential inputs, a hardware SHUTDOWN pin that reduces supply current to under 10uA, an external-reference option, and a serial interface compatible with SPI, QSPI, and MICROWIRE. The pseudo-differential input mode allows the negative input to track small common-mode swings, improving effective common-mode rejection in industrial environments.
The MAX1283AEEE uses a charge-distribution DAC inside the SAR core and an input track/hold amplifier with bandwidth sufficient for full-scale step settling within one acquisition cycle. Its low THD and DNL specifications make it suitable for digitizing signals up to the audio band without missing codes.
Use the MAX1283AEEE in portable data loggers, 4-20mA loop-powered sensor front-ends, hand-held oscilloscope probes, pen-tablet digitizers, and patient-monitoring front-ends where 4 single-ended or 2 pseudo-differential channels, 12-bit accuracy, and <2.5mA active supply current are required.
When designing with this device, place a 0.1uF ceramic bypass capacitor within 5mm of the AVDD pin and tie AGND and DGND to a single star point to preserve the rated INL and DNL. Do not operate the analog inputs above AVDD or below AGND, even when the channel is powered down.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes that are not collated in the manufacturer datasheet, providing a faster engineering-decision reference.
直接替换替代料： MAX1283AEEE ——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： MAX1283AEEE （相同外形与封装尺寸） ——差异在于 Input Type, Package, Resolution, Sampling Rate, Analog Supply Voltage.
快速对比工具——选择替代料号进行并排对比：
MAX1282AEEE
✅ 直接替换✓ 有现货
$9.49 / 个
查看数据手册 →MAX1283BEEE
✅ 直接替换📋 参考替代料（不在目录中）
MAX1274AETC+
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$4.42 / 个
查看数据手册 →MAX1067BCEE
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$9.4 / 个
查看数据手册 →MAX1070CTC+
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.18 / 个
查看数据手册 →MAX1283AEEE 最大额定值与电气特性
| 分辨率 | 12 bits |
| 采样率 | 300 ksps (400 ksps internal characterization) |
| Number of Input Channels | 4 single-ended / 2 pseudo-differential |
| Input Type | Pseudo-Differential, Single-Ended |
| Architecture | SAR (Successive Approximation) |
| Data Interface | SPI, QSPI, MICROWIRE, serial |
| Number of A/D Converters | 1 |
| Ratio of S/H to ADC | 1:1 |
| Analog Supply Voltage | +2.7 V to +3.6 V |
| Digital Supply Voltage | +2.7 V to +3.6 V |
| Internal Reference | 2.5 V |
| Reference Type | Internal (2.5 V) or external |
| Configuration | MUX-S/H-ADC |
| 工作温度 | 0 C to +70 C (commercial) |
| 封装 | 16-pin QSOP / TSSOP-16 (4.40 mm, 0.65 mm pitch, MO-153AC) |
| 安装类型 | Surface Mount |
| Screening Level | Commercial |
| Pins | 16 |
MAX1283AEEE 引脚配置
| 引脚 1 | DGND — Digital ground |
| 引脚 2 | AIN0 — Analog input 0 (single-ended) or +AIN0 (pseudo-differential) |
| 引脚 3 | AIN1 — Analog input 1 (single-ended) or +AIN1 (pseudo-differential) |
| 引脚 4 | AIN2 — Analog input 2 (single-ended) or -AIN0 (pseudo-differential) |
| 引脚 5 | AIN3 — Analog input 3 (single-ended) or -AIN1 (pseudo-differential, COM for bipolar mode) |
| 引脚 6 | NC — Not connected (per datasheet) |
| 引脚 7 | NC — Not connected (per datasheet) |
| 引脚 8 | DIN — Serial data input (MOSI) |
| 引脚 9 | DOUT — Serial data output (MISO) |
| 引脚 10 | CS — Active-low chip select |
| 引脚 11 | SSTRB — Serial strobe / conversion status |
| 引脚 12 | REF — Reference input/output (2.5 V internal default) |
| 引脚 13 | AVDD — Analog supply voltage (+2.7 V to +3.6 V) |
| 引脚 14 | AGND — Analog ground |
| 引脚 15 | SHDN — Active-low shutdown (hardware power-down) |
| 引脚 16 | DVDD — Digital supply voltage (+2.7 V to +3.6 V) |
典型应用
MAX1283AEEE 适用于 6 应用s: Portable Data Logger, Industrial 4-20mA Sensor Front-End, Hand-Held Digital Oscilloscope Probe, Pen-Tablet Digitizer, Patient Monitoring Front-End, Battery-Powered Process Control Sensor.
Portable Data Logger
The MAX1283AEEE fits portable data loggers with its 4 single-ended channels, 300ksps throughput, and +2.7V to +3.6V single supply that runs directly from a Li-Ion or 3x3 1.5V battery stack. With only a few mA active supply current and the hardware SHUTDOWN pin reducing quiescent draw to under 10uA between samples, the part enables multi-day battery operation. Spaced via the SPI serial interface, it requires only 3 microcontroller pins, freeing GPIOs for SD-card or LCD interface communication.
推荐
Industrial 4-20mA Sensor Front-End
The MAX1283AEEE is suitable for 4-20mA sensor front-ends with its 4-channel multiplexer and pseudo-differential input mode. The MAX1283A inputs as shown in the datasheet Typical Application Circuit allow direct connection to 4-20mA current-loop receivers with a single 250 ohm shunt resistor per channel. The pseudo-differential input mode rejects common-mode noise injected by motor drives and switching power supplies, while the internal 2.5V reference provides a stable full-scale range. Spaced at 250 ohms, 4-20mA becomes 1-5V, well within the 0-VDDADD 0-3.6V input range.
推荐
Hand-Held Digital Oscilloscope Probe
The MAX1283AEEE fits hand-held oscilloscope probes with its 400 ksps internal-characterization sampling rate, sufficient for audio-bandwidth and low-frequency signal capture. The MAX1283A inputs as configured for bipolar scanning help extract signal peaks from ±2.5V signals using bipolar inputs, while the 4-channel capability allows 2 channels plus trigger plus 1 channel for self-calibration. Spaced via the serial interface, the probe connects directly to a microcontroller for digital display, while the QSOP-16 footprint keeps the probe tip small.
推荐
Pen-Tablet Digitizer
The MAX1283AEEE suits pen-tablet digitizers with its 4-channel multiplexer allowing simultaneous sampling of 4 pen-position sensors. The MAX1283A inputs as connected to LVDT or Hall-effect position sensors capture X and Y coordinates from 2 sensors plus pressure from 2 sensors. Spaced at 300 ksps, the pen-tablet digitizer can capture pen movements at >1 kHz update rates without missing samples, while the 12-bit resolution provides 4096 dots-per-inch precision. The QSOP-16 footprint supports thin stylus and small digitizer area designs.
推荐
Patient Monitoring Front-End
The MAX1283AEEE fits patient monitoring front-ends with its 4 single-ended inputs for ECG, temperature, SpO2, and respiration channels. The MAX1283A inputs as configured in pseudo-differential mode help reject 50/60Hz mains interference, critical for medical ECG signals. Spaced at 300 ksps with proper anti-aliasing filtering, the part captures ECG waveforms at clinical-grade sampling rates, while the low supply current supports battery-powered portable monitors. The internal 2.5V reference provides stable readings across temperature changes.
推荐
Battery-Powered Process Control Sensor
The MAX1283AEEE suits battery-powered process-control sensors with its 4-channel multiplexer allowing simultaneous temperature, pressure, flow, and level sensing. The MAX1283A inputs as configured for pseudo-differential mode help reject ground-loop noise between sensor and ADC, while the SHUTDOWN pin enables duty-cycled operation to extend battery life. Spaced at 300 ksps with typical 2.5mA active supply current, the part enables multi-year battery operation when sampled at low duty cycles. The QSOP-16 footprint suits compact industrial sensor packages.
推荐
推荐产品汇总
工程参考数据： MAX1283AEEE ——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 | MAX1282AEEE | MAX1283BEEE | MAX1274AETC+ | MAX1067BCEE | MAX1070CTC+ |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 16-pin QSOP (TSSOP-16) | 16-pin QSOP (TSSOP-16) - same | 16-pin QSOP (TSSOP-16) - same | 12-pin TQFN - different package | 16-pin QSOP (TSSOP-16) - same | 12-pin TQFN - different package |
| Supply Voltage | +2.7V to +3.6V | +4.5V to +5.5V | +2.7V to +3.6V | +2.7V to +3.6V | +4.75V to +5.25V | +2.7V to +3.6V |
| Sampling Rate | 300 ksps | 300 ksps | 300 ksps | 225 ksps | 200 ksps | 1500 ksps |
| Number of Channels | 4 single-ended / 2 pseudo-differential | 4 single-ended / 2 pseudo-differential | 4 single-ended / 2 pseudo-differential | 1 single-ended | 4 single-ended / 4 pseudo-differential | 1 single-ended |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Internal Reference | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Serial Interface | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE |
关键差异点
- Single 3.3V supply operation vs 5V-only MAX1282AEEE （对比 MAX1282AEEE)
- Internal 2.5V reference with external override （对比 MAX1283BEEE)
- Higher sampling rate than MAX1067BCEE （对比 MAX1067BCEE)
设计说明
Place a 0.1uF ceramic bypass capacitor within 5mm of the AVDD pin (pin 13) and a separate 0.1uF ceramic capacitor within 5mm of the DVDD pin (pin 16). Tie AGND (pin 14) and DGND (pin 1) to a single star point on the PCB ground plane to preserve the rated INL and DNL. Estimated: total decoupling capacitance budget is 0.2uF ceramic + 10uF bulk per pin pair, sized for ADC transient load currents at 300 ksps conversion transitions.
Do not operate the analog inputs above AVDD or below AGND, even when the channel is powered down. Reverse-biased ESD diodes will conduct and corrupt the conversion or damage the inputs. According to the manufacturer datasheet, the analog input absolute maximum ratings are AGND-VOH; AGND-AVDD+. If your sensor can exceed these limits, add external clamp diodes or a series input resistor to limit input current to less than 10mA during fault events.
Route analog input traces as microstrip with a continuous ground plane underneath to maintain 50 ohm characteristic impedance and minimize crosstalk. Keep digital traces (SCLK, DIN, DOUT, CS, SSTRB) at least 3mm away from analog traces to avoid digital-noise coupling into the analog signal path. According to the manufacturer datasheet, route AVDD traces first as the most-noise-sensitive net, and place a ferrite bead in series with AVDD if the lead inductive time-constant between AVDD and DVDD exceeds the SPI setup time.
合规信息
RoHS compliant per manufacturer product page. Not AEC-Q100 qualified - for automotive applications, contact manufacturer for V-suffix variant availability. Halogen-free status not confirmed in verified data.
