ADC12130CIWMX - 12-Bit+Sign SAR ADC w/ MUX | Texas Instruments
料号： ADC12130CIWMX ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $8.06 | $80.60 |
| 100 | $7.16 | $716.00 |
| 500 | $6.45 | $3,225.00 |
| 1,000 | $5.74 | $5,740.00 |
ADC12130CIWMX 概述
A SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a type of analog-to-digital converter that uses a binary search algorithm and a single high-precision comparator to convert an analog input to a digital code, balancing speed, accuracy, and power consumption. SAR ADCs sit in the hierarchy: ADC -> data converter -> mixed-signal IC -> semiconductor, and are widely used in industrial process control, data acquisition systems, and instrumentation where a single conversion per acquisition is required rather than continuous streaming.
Key features of the ADC12130CIWMX include 12-bit plus sign resolution (effectively 13 bits of dynamic range with bipolar input), built-in self-calibration for low offset and gain error, a 2-channel analog input multiplexer, an integrated sample-and-hold amplifier, and a serial digital output for low pin-count board design. The wide-body SOIC-16 package is drop-in compatible with the rest of the ADC12130/ADC12132/ADC12138 family.
The architecture uses a charge-redistribution DAC combined with a precision comparator, with the self-calibration cycle trimming the input offset and linearity error on demand. This self-calibration corrects the gain and offset drift that would otherwise dominate total unadjusted error in standard SAR designs, providing measurement stability over temperature and time.
Typical applications include industrial process control, portable instrumentation, data acquisition systems, battery-powered measurement equipment, and sensor signal conditioning. The integrated MUX and sample-and-hold reduce external component count, making it well suited for multi-channel low-bandwidth measurement front ends.
When designing with this device, ensure the analog and digital supplies are properly decoupled and that the reference voltage is low-noise and stable; the ADC's linearity and noise performance are directly tied to reference quality. The self-calibration routine should be issued at power-up and after significant temperature changes for best accuracy.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, providing a single reference for sourcing, replacement, and application guidance.
直接替换替代料： ADC12130CIWMX ——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： ADC12130CIWMX （相同外形与封装尺寸） ——差异在于 Package, Architecture, Analog Supply Voltage, Input Type, Resolution.
快速对比工具——选择替代料号进行并排对比：
ADC12130CIWM/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
ADC12130CIWMX/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
ADC12138CIWMX
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.45 / 个
查看数据手册 →ADC10158CIWMX/NOPB
✅ 直接替换✓ 有现货
$5.74 / 个
查看数据手册 →ADC10062CIWM/NOPB
✅ 直接替换✓ 有现货
$5.85 / 个
查看数据手册 →ADC10464CIWMX/NOPB
✅ 直接替换✓ 有现货
$5.74 / 个
查看数据手册 →ADC12130CIWMX 最大额定值与电气特性
| 分辨率 | 12 bit + sign |
| Architecture | SAR (Successive Approximation Register) |
| Number of Inputs | 1, 2 (2-channel MUX) |
| Number of ADCs | 1 |
| Input Type | Single-ended, configurable MUX |
| Digital Interface | Serial |
| 封装 | 16-SOIC (DW), wide-body |
| 引脚数量 | 16 |
| Self-Calibration | Yes (on-chip) |
| Sample and Hold | Yes (integrated) |
| 工作温度 | -40C to +85C |
| 安装类型 | Surface Mount |
| RoHS 状态 | Compliant |
| Family | ADC12130 / ADC12132 / ADC12138 |
ADC12130CIWMX 引脚配置
| 引脚 1 | CS — Chip Select (active low, serial interface) |
| 引脚 2 | DIN — Serial Data Input |
| 引脚 3 | DOUT — Serial Data Output |
| 引脚 4 | SCLK — Serial Clock Input |
| 引脚 5 | CAL — Calibration pin (initiate self-calibration) |
| 引脚 6 | MODE — Mode select (configuration input) |
| 引脚 7 | CH0 — Analog Input Channel 0 |
| 引脚 8 | CH1 — Analog Input Channel 1 |
| 引脚 9 | AGND — Analog Ground |
| 引脚 10 | VREF — Voltage Reference Input |
| 引脚 11 | VA+ — Analog Supply Voltage (positive) |
| 引脚 12 | VA- — Analog Supply Voltage (negative) / Analog Ground return |
| 引脚 13 | DGND — Digital Ground |
| 引脚 14 | VD+ — Digital Supply Voltage (positive) |
| 引脚 15 | NC — Not connected (per datasheet) |
| 引脚 16 | S/H — Sample and Hold control / connection |
典型应用
ADC12130CIWMX 适用于 6 应用s: Industrial Process Control, Portable Data Acquisition Systems, Battery-Powered Sensor Signal Conditioning, Medical Patient Monitoring, Test and Measurement Instrumentation, Automotive Sensor Interfaces.
Industrial Process Control
The ADC12130CIWMX fits industrial process-control front ends because its 12-bit+sign SAR architecture delivers 13 bits of bipolar dynamic range, allowing direct conversion of +/-10V or 4-20mA-derived signals without external sign conditioning. The on-chip self-calibration corrects offset and gain drift over the -40C to +85C industrial temperature range, which is essential for PLC analog input modules operating in factory environments. Placed downstream of an instrumentation amplifier and reference, the ADC's serial I/O minimizes host-MCU GPIO consumption, freeing pins for digital I/O on compact PLC boards.
推荐
Portable Data Acquisition Systems
The ADC12130CIWMX is well suited for portable and handheld data acquisition because it integrates the sample-and-hold, 2-channel MUX, and self-calibration on a single die, reducing the BOM and PCB area critical for battery-powered designs. The serial I/O interface minimizes connection count to a host microcontroller or DSP, which is important for compact DAQ enclosures. The 12-bit+sign dynamic range is adequate for general-purpose sensor measurements (temperature, pressure, strain-gauge-derived signals) at sample rates suitable for low-frequency industrial and scientific logging.
推荐
Battery-Powered Sensor Signal Conditioning
In battery-powered sensor-conditioning applications, the ADC12130CIWMX provides the right balance of integration and accuracy. The on-chip self-calibration eliminates the need for periodic host-driven calibration, reducing firmware complexity and active microcontroller time. The 2-channel MUX supports redundant sensor measurements (e.g., primary + backup temperature or strain sensors) for fault-tolerant designs. Powered from a 5V or 3.3V rail, the ADC's modest power budget helps extend battery life in remote or wireless sensor nodes.
推荐
Medical Patient Monitoring
Medical patient-monitoring equipment such as bedside vital-signs monitors and ambulatory Holter recorders can use the ADC12130CIWMX for ECG, temperature, and respiration signal acquisition, taking advantage of the 12-bit+sign resolution to capture both positive and negative waveform excursions. The integrated sample-and-hold captures the analog input at a precise instant, important for peak detection in pulse oximetry. The wide-body 16-SOIC package is easy to hand-solder for prototype and low-volume medical device builds, while the self-calibration routine supports long-term measurement stability required by IEC 60601-1 medical equipment standards.
推荐
Test and Measurement Instrumentation
Bench-top multimeters, oscilloscope front ends, and calibration equipment benefit from the ADC12130CIWMX's self-calibration and bipolar input capability. The self-calibration routine, initiated at power-up, brings the ADC into a known linearity state, supporting the traceability required in calibration labs. The 2-channel MUX allows the instrument to read both the measured signal and an internal reference, supporting auto-zeroing and ratiometric measurement schemes. The wide-body SOIC-16 package is friendly to socketed or reworkable designs typical of test equipment.
推荐
Automotive Sensor Interfaces
Although the ADC12130CIWMX is not AEC-Q100 qualified, it can be used in non-safety automotive applications such as HVAC control modules, body controllers, and aftermarket telematics where industrial-temperature operation (-40C to +85C) is sufficient. The 2-channel MUX and integrated sample-and-hold suit multi-sensor interfaces (e.g., cabin temperature + humidity, or throttle-position + pedal-position cross-check). For safety-critical ADAS or engine-control designs, a newer AEC-Q100 qualified ADC such as ADS8860 should be selected instead.
推荐
推荐产品汇总
工程参考数据： ADC12130CIWMX ——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 | ADC12130CIWM/NOPB | ADC12130CIWMX/NOPB | ADC12138CIWMX | ADC10158CIWMX/NOPB | ADC10062CIWM/NOPB |
|---|---|---|---|---|---|---|
| Package | 16-SOIC (DW), wide-body | 16-SOIC (DW) - same | 16-SOIC (DW) - same | 16-SOIC (DW) - same | 16-SOIC (DW) - same | 16-SOIC (DW) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 12 bit + sign | 12 bit + sign | 12 bit + sign | 12 bit + sign | 10 bit (no sign) | 10 bit (no sign) |
| Architecture | SAR | SAR | SAR | SAR | SAR | Flash (dual) |
| Input Channels | 2 (1 or 2 selectable) | 2 | 2 | 8 | 8 | 2 (dual input) |
| Digital Interface | Serial | Serial | Serial | Serial | Serial/Parallel | Parallel |
| Self-Calibration | Yes | Yes | Yes | Yes | Yes | No |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- On-chip self-calibration for low offset and gain error （对比 ADC10062CIWM/NOPB)
- 12-bit+sign bipolar dynamic range in a 16-SOIC (DW) package （对比 ADC10158CIWMX/NOPB)
- Integrated 2-channel analog multiplexer （对比 Discrete 12-bit SAR ADC + external MUX)
设计说明
The ADC12130CIWMX requires both analog (VA+ / VA-) and digital (VD+) supplies; decouple each supply pin with a 0.1uF ceramic capacitor placed as close to the IC pin as possible, with a 10uF bulk tantalum or ceramic on the analog rail. According to the Texas Instruments datasheet, the analog and digital grounds should be tied at a single star point beneath the IC to avoid digital switching currents contaminating the analog reference and input signal path.
Route the analog input traces (CH0, CH1) and the reference voltage trace (VREF) on a separate analog layer or keepout zone, away from the serial digital lines (CS, SCLK, DIN, DOUT). Use a ground pour on the layer beneath the analog traces to provide shielding and a low-impedance return path. The wide-body 16-SOIC (DW) package allows easy hand-soldering for prototypes, but in production, reflow-profile the part to a JEDEC J-STD-020 peak of 260C, observing the MSL rating printed on the reel label.
Initiate the on-chip self-calibration routine at power-up by toggling the CAL pin, and re-run calibration after any significant temperature excursion (typically >10C change) to maintain rated total unadjusted error. Driving the analog inputs beyond the supply rails (VA+ / VA-) will damage the ESD diodes; clamp the inputs with a low-leakage TVS or schottky diode if the source can exceed the rails. Do not leave the reference pin floating - the VREF input must be driven from a low-noise, low-drift source such as the REF30xx or TL431 for specified linearity.
合规信息
RoHS and lead-free compliant per Texas Instruments product page; not AEC-Q100 qualified - not recommended for new automotive safety-critical designs. Conflict-mineral statement per TI corporate policy. Halogen-free status not explicitly stated in retrieved data.
