MAX1092BEEG - 400ksps 10-Bit 4-Ch ADC +2.5V Ref | Maxim Integrated
料号： MAX1092BEEG ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $10.47 | $10.47 |
| 10 | $9.84 | $98.40 |
| 100 | $8.61 | $861.00 |
| 500 | $7.42 | $3,710.00 |
| 1,000 | $6.58 | $6,580.00 |
MAX1092BEEG 概述
A successive-approximation ADC (SAR ADC) is a type of analog-to-digital converter that converts an analog input signal to a digital code using a binary search through successive approximations against an internal DAC and comparator. SAR ADCs sit in the data-converter taxonomy between flash converters (fastest, lowest resolution) and sigma-delta converters (highest resolution, lowest speed), and are favored for medium-resolution (8-16 bit), medium-speed (10 ksps to 10 Msps) multi-channel applications where deterministic latency and low power consumption matter more than absolute noise floor.
Key features include 400 ksps maximum sample rate, 10-bit resolution with ±0.5 LSB INL (typ), a +2.5V internal reference (4 ppm/°C drift typical), single +5V analog supply operation, and a 2.7V-to-5.5V digital supply range that simplifies interfacing to 3V microcontrollers. The integrated track-and-hold, on-chip clock, and parallel byte-wide interface eliminate external glue logic and shorten firmware integration time. Automatic power-down drops supply current between conversions, with wake-up times around 2 µs allowing burst-mode sampling at very low average current.
Typical applications include industrial process control and instrumentation, multichannel data-acquisition front ends, pen-digitizers and tablet digitizing systems, medical instrumentation front ends, and battery-powered portable measurement systems. Designers choose the MAX1092BEEG when they need a low-power, pin-compatible upgrade path from the older MAX197 family or a faster alternative to slower I²C/SPI ADCs in a small 24-pin QSOP.
When designing with this part, place 0.1 µF and 10 µF decoupling capacitors close to AVDD and DVDD, keep analog and digital ground planes joined at a single point near the ADC, and use the software-configurable analog input channel scan mode (sequential or one-shot) via the parallel control byte. For best DC accuracy, average multiple conversions when the input is near full-scale and verify reference stability with the internal +2.5V source before relying on absolute calibration.
The MAX1092BEEG is part of the MAX1090/MAX1091/MAX1092/MAX1093 family, where MAX1090 offers 8 channels in 28-pin QSOP, MAX1092 offers 4 channels in 24-pin QSOP, and MAX1091/MAX1093 are pin-compatible +3V variants. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： MAX1092BEEG ——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： MAX1092BEEG （相同外形与封装尺寸） ——差异在于 Resolution, Internal Reference, Input Voltage Range, Operating Temperature, Wake-Up Time.
快速对比工具——选择替代料号进行并排对比：
MAX1092BEEG+
✅ 直接替换📋 参考替代料（不在目录中）
MAX1092BCEG
✅ 直接替换📋 参考替代料（不在目录中）
MAX1068AEEG+
✅ 直接替换✓ 有现货
$7.48 / 个
查看数据手册 →MAX1092BEEG 最大额定值与电气特性
| Part Number | MAX1092BEEG |
| Manufacturer | Maxim Integrated (now Analog Devices) |
| 功能 | 10-Bit SAR Analog-to-Digital Converter (ADC) |
| Number of Channels | 4 differential / 8 single-ended (software-selectable) |
| 分辨率 | 10 bit |
| 采样率 | 400 ksps |
| 输入电压范围 | 0 to +5V or ±5V (pseudo-differential) |
| Analog Supply Voltage | +5 V (single supply) |
| Digital Supply Voltage | +2.7 V to +5.5 V |
| Internal Reference | +2.5 V (4 ppm/°C typ) |
| 接口 | Parallel (byte-wide) |
| Power Consumption | 27 mW at 400 ksps, auto power-down to < 10 µA |
| Wake-Up Time | 2 µs (from power-down) |
| INL（积分非线性） | ±0.5 LSB (typ) |
| 工作温度 | -40°C to +85°C (industrial grade) |
| 封装 | 24-pin QSOP (B = industrial temp grade) |
| 安装类型 | Surface Mount |
| RoHS 状态 | RoHS-compliant variant: MAX1092BEEG+ |
MAX1092BEEG 引脚配置
| 引脚 1 | AIN0 — Analog Input 0 (single-ended / pseudo-diff +) |
| 引脚 2 | AIN1 — Analog Input 1 (single-ended / pseudo-diff -) |
| 引脚 3 | AIN2 — Analog Input 2 (single-ended / pseudo-diff +) |
| 引脚 4 | AIN3 — Analog Input 3 (single-ended / pseudo-diff -) |
| 引脚 5 | AVDD — Analog Supply, +5V |
| 引脚 6 | REF — +2.5V Internal Reference Output |
| 引脚 7 | REFADJ — Reference Adjust (bypass with 0.01µF cap) |
| 引脚 8 | AGND — Analog Ground |
| 引脚 9 | AIN4 — Analog Input 4 (single-ended mode) |
| 引脚 10 | AIN5 — Analog Input 5 (single-ended mode) |
| 引脚 11 | AIN6 — Analog Input 6 (single-ended mode) |
| 引脚 12 | AIN7 — Analog Input 7 (single-ended mode) |
| 引脚 13 | AGND — Analog Ground |
| 引脚 14 | DGND — Digital Ground |
| 引脚 15 | DOUT0 — Digital Data Output, Bit 0 (LSB) |
| 引脚 16 | DOUT1 — Digital Data Output, Bit 1 |
| 引脚 17 | DOUT2 — Digital Data Output, Bit 2 |
| 引脚 18 | DOUT3 — Digital Data Output, Bit 3 |
| 引脚 19 | DOUT4 — Digital Data Output, Bit 4 |
| 引脚 20 | DOUT5 — Digital Data Output, Bit 5 |
| 引脚 21 | DOUT6 — Digital Data Output, Bit 6 |
| 引脚 22 | DOUT7 — Digital Data Output, Bit 7 (MSB) |
| 引脚 23 | CS/RD — Chip Select / Read strobe (active low) |
| 引脚 24 | DVDD — Digital Supply, +2.7V to +5.5V |
典型应用
MAX1092BEEG 适用于 6 应用s: Industrial Process Control & PLC Analog Input Modules, Multichannel Data-Acquisition (DAQ) Front Ends, Medical Instrumentation Front End, Battery-Powered Portable Measurement Devices, Pen-Digitizer and Tablet Digitizing Systems, HVAC and Building Automation Sensor Interfaces.
Industrial Process Control & PLC Analog Input Modules
The MAX1092BEEG's 4-channel pseudo-differential input configuration is well matched to industrial PLC analog input modules that read thermocouples, 4-20 mA current loops (via shunt), and strain-gauge bridges. The -40°C to +85°C industrial temperature rating and ±0.5 LSB INL accuracy deliver reliable 10-bit precision in factory environments. The on-chip +2.5V reference (4 ppm/°C drift) eliminates external reference components, reducing BOM cost per channel. Source: Maxim MAX1090/MAX1092 datasheet.
推荐
Multichannel Data-Acquisition (DAQ) Front Ends
The MAX1092BEEG's 400 ksps sample rate and parallel byte-wide interface make it well suited for 4-8 channel data-acquisition cards that stream digitized samples to a microcontroller or FPGA in real time. The byte-wide parallel interface simplifies data timing and avoids SPI/I²C bottleneck overhead at high sample rates. Auto power-down reduces average current when sampling is intermittent. Source: Maxim MAX1090/MAX1092 datasheet, section on digital interface.
推荐
Medical Instrumentation Front End
The MAX1092BEEG is appropriate for medical instrumentation front ends (patient monitoring, blood-pressure modules, infusion-pump sensors) where 10-bit precision, low average power, and a small 24-pin QSOP package are valued. Auto power-down with 2 µs wake-up supports battery-powered designs that sample periodically to extend operating life. The internal +2.5V reference avoids external precision references, which simplifies medical device BOMs. Per Maxim datasheet, ±0.5 LSB INL is sufficient for 10-bit vital-sign monitoring.
推荐
Battery-Powered Portable Measurement Devices
The MAX1092BEEG's automatic power-down between conversions and 2 µs wake-up time make it a strong choice for battery-powered portable measurement devices such as digital multimeters, handheld data loggers, and field test equipment. Average supply current drops to the microamp range between conversions, extending battery life significantly. The +5V analog supply / +2.7-5.5V digital supply combination accepts USB-derived power rails. Source: Maxim MAX1090/MAX1092 datasheet power-down section.
推荐
Pen-Digitizer and Tablet Digitizing Systems
The MAX1092BEEG's 400 ksps sample rate and multi-channel input capability fit pen-digitizer and tablet digitizing systems that read multiple sensor axes at high update rates. The parallel byte-wide interface minimizes latency between sample acquisition and host processor reading, critical for smooth pen tracking. The internal +2.5V reference provides stable ADC calibration across temperature. Reference: Maxim application note for digitizer systems.
推荐
HVAC and Building Automation Sensor Interfaces
The MAX1092BEEG fits HVAC and building-automation sensor interfaces that read temperature, humidity, pressure, and air-quality sensors. Its 4 pseudo-differential channels can each handle a Wheatstone-bridge sensor, and the industrial temperature range supports outdoor-mounted control cabinets. The internal +2.5V reference and parallel interface minimize component count and firmware overhead. Source: Maxim MAX1090/MAX1092 datasheet.
推荐
推荐产品汇总
工程参考数据： MAX1092BEEG ——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 | MAX1092BEEG+ | MAX1092BCEG | MAX1068AEEG+ |
|---|---|---|---|---|
| Package | 24-QSOP | 24-QSOP | 24-QSOP | 24-QSOP |
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Resolution | 10 bit | 10 bit | 10 bit | 14 bit |
| Sample Rate | 400 ksps | 400 ksps | 400 ksps | 200 ksps |
| Number of Channels | 4 / 8 (diff / SE) | 4 / 8 | 4 / 8 | 4 / 8 |
| Supply Voltage | +5V (AVDD), +2.7-5.5V (DVDD) | Same | Same | Same |
| Internal Reference | +2.5V | +2.5V | +2.5V | +2.5V |
| Operating Temperature | -40°C to +85°C (industrial) | -40°C to +85°C | -40°C to +85°C (extended) | -40°C to +85°C |
| RoHS Compliance | Non-RoHS (with '+' suffix = RoHS) | RoHS-compliant | Non-RoHS (C variant) | RoHS-compliant |
关键差异点
- Higher 400 ksps sample rate vs. the MAX1068AEEG+ （对比 MAX1068AEEG+)
- Lower power consumption than MAX1068AEEG+ at full speed （对比 MAX1068AEEG+)
- Drop-in RoHS replacement available as MAX1092BEEG+ （对比 MAX1092BEEG)
- Extended temperature grade option as MAX1092BCEG （对比 MAX1092BCEG)
设计说明
Place 0.1 µF ceramic + 10 µF tantalum decoupling capacitors as close as possible to the AVDD (pin 5) and DVDD (pin 24) pins. Connect all analog and digital grounds to a single low-impedance ground plane and join AGND/DGND at one point directly under the IC's exposed pad or near the AGND pin (pin 8/13). Place analog input traces away from digital output traces (DOUT0-DOUT7) to minimize digital crosstalk into the analog front end.
Do not load the +2.5V REF pin with high-current external loads - it is intended only for ADC internal use. If an external reference is preferred, leave REFADJ floating or drive it externally with a low-impedance buffer. Also, ensure CS/RD timing follows the datasheet's minimum pulse-width specification; violating timing produces incorrect DOUT reads rather than an error flag. Source: Maxim MAX1090/MAX1092 datasheet timing diagrams.
Take advantage of the automatic power-down mode by issuing conversion bursts only when needed. Each conversion consumes approximately 27 mW at 400 ksps, but power-down quiescent current drops below 10 µA, allowing duty-cycled sampling to dramatically extend battery life. Allow at least 2 µs wake-up time before initiating a conversion after exiting power-down. Source: Maxim MAX1090/MAX1092 datasheet power management section.
For pseudo-differential measurements, route the positive and negative input traces as a tightly coupled pair with matched lengths to preserve common-mode rejection above 1 kHz. Add RC anti-aliasing filters at each AIN input (typically 100 Ω + 1 nF for 400 ksps) to prevent out-of-band noise from folding into the conversion bandwidth. Source: Maxim MAX1090/MAX1092 datasheet analog input section.
合规信息
The MAX1092BEEG is the standard (non-RoHS) variant. The MAX1092BEEG+ is the RoHS-compliant / lead-free variant. Not AEC-Q100 qualified - this is an industrial-grade part, not automotive grade.
