ADC104S101CIMMX/NOPB - 4-Ch 10-Bit 500-1MSPS SAR ADC | TI
MPN： ADC104S101CIMMX/NOPB ✓ 啟用中ADC104S101CIMMX/NOPB 概覽
An SAR ADC (Successive Approximation Register Analog-to-Digital Converter) is a precision data-conversion architecture that performs one bit of conversion per internal clock cycle using a binary-search algorithm against a known reference voltage. SAR ADCs offer deterministic latency, no pipeline delay, excellent DC accuracy, and very low power consumption relative to their throughput. ADC104S101 belongs to the SAR ADC family within the broader data-converter hierarchy: SAR ADC -> ADC -> data converter -> mixed-signal IC -> semiconductor.
Key features include 10-bit resolution, four single-ended analog input channels, throughput from 500 ksps to 1 Msps, single 2.7 V to 5.25 V supply operation, ±1 LSB INL/DNL (max), and a serial interface compatible with SPI, QSPI, and MICROWIRE. The device typically consumes only 3.6 mW at 1 Msps with a 3 V supply and automatically powers down between conversions, drawing microamps in standby. An external reference voltage is required and supports ratiometric measurements.
In typical applications, the ADC104S101 is used in multi-channel sensor digitizing, system monitoring (temperature, voltage, current loops), industrial control loops, handheld instrumentation, and consumer audio/video signal-level measurement. The wide input range (0 V to VA, single-ended) and small MSOP footprint suit dense, multi-channel PCBs. The four-channel MUX plus single ADC core reduces BOM versus four separate ADC ICs.
When designing with the ADC104S101CIMMX/NOPB, drive each analog input through a low-impedance source (op-amp buffer or RC anti-alias filter) to maintain AC performance, place 0.1 uF ceramic bypass close to VA and VREF, and use GND/power planes to limit digital switching noise. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that complement the official datasheet.
直接替換替代品，適用於 ADC104S101CIMMX/NOPB — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： ADC104S101CIMMX/NOPB （相同外形與佔位） — 差異在於 Package, Number of Input Channels, Analog Input Voltage Range, Digital Interface, Resolution.
ADC104S101CIMM/NOPB
✅ 直接替換📋 參考替代品（不在目錄中）
ADC104S101CIMMX
✅ 直接替換聯絡詢價
查看資料表 →ADC104S051CIMM
✅ 直接替換聯絡詢價
查看資料表 →ADC102S101CIMMX/NOPB
✅ 直接替換聯絡詢價
查看資料表 →ADC104S101CIMMX/NOPB 最大額定值與電氣特性
| 解析度 | 10 bit |
| Number of Channels | 4 (single-ended) |
| Sample Rate Range | 500 ksps to 1 Msps |
| Architecture | SAR (Successive Approximation Register) |
| Supply Voltage (VA) | 2.7 V to 5.25 V |
| Analog Input Voltage Range | 0 V to VA |
| Input Type | Single-ended |
| Integral Nonlinearity (INL) | ±1 LSB (max) |
| Differential Nonlinearity (DNL) | ±1 LSB (max) |
| Power Consumption (typ) | 3.6 mW at 1 Msps, 3 V supply |
| 工作溫度 | -40 C to +85 C |
| 封裝 | MSOP-10 (DGS) |
| 安裝類型 | Surface Mount |
| 介面 | SPI / QSPI / MICROWIRE compatible serial |
| RoHS 狀態 | Compliant |
ADC104S101CIMMX/NOPB 腳位配置
| 腳位 1 | VA — Analog/digital supply voltage (2.7 V to 5.25 V) |
| 腳位 2 | GND — Ground (analog and digital common) |
| 腳位 3 | VREF — External reference voltage input |
| 腳位 4 | AIN0 — Analog input channel 0 |
| 腳位 5 | AIN1 — Analog input channel 1 |
| 腳位 6 | AIN2 — Analog input channel 2 |
| 腳位 7 | AIN3 — Analog input channel 3 |
| 腳位 8 | DOUT — Serial data output (SPI MISO) |
| 腳位 9 | SCLK — Serial clock input |
| 腳位 10 | CS — Chip-select input (active low) |
典型應用
ADC104S101CIMMX/NOPB 適用於 6 應用s: Multi-Channel Sensor Digitizing, Industrial Control and Monitoring, Portable / Battery-Powered Instrumentation, System Health Monitoring in Embedded Systems, Consumer Audio / Video Signal-Level Measurement, Automotive Sensor Interfaces (Non-Safety).
Multi-Channel Sensor Digitizing
The ADC104S101CIMMX/NOPB is well-suited to multi-channel sensor-digitizing boards that need four analog inputs (temperature, pressure, voltage, current) read sequentially by a single SAR ADC. Its 500 ksps to 1 Msps throughput comfortably handles four channels at 100 ksamples/s each, while its 4-channel integrated MUX replaces three external analog switches. With 10-bit resolution (about 10 mV LSB at 3.3 V full scale) and ±1 LSB INL/DNL, it provides repeatable, monotonic conversion for industrial sensor front-ends. Place the IC near the sensor connectors, drive each input through a low-impedance op-amp buffer, and add a 10 nF to 100 nF RC anti-alias filter per channel to reject out-of-band noise before the SAR sample-and-hold captures.
推薦
Industrial Control and Monitoring
In industrial control systems, the ADC104S101CIMMX/NOPB digitizes analog process variables such as 4-20 mA loop voltages, thermocouple/thermistor-conditioned signals, and motor-current shunts. Its single 2.7 V to 5.25 V supply, MSOP-10 footprint, and 3.6 mW typical power simplify 24V-to-5V-isolated instrumentation front-ends. Four analog inputs map cleanly to common PLC analog modules (AI0 to AI3). The integrated track-and-hold allows AC and DC signals up to about one-half the sampling rate without aliasing concerns. Use TVS diodes protection at each input and an isolated SPI isolator (such as ISO7640FM) between the ADC and the controller for robust 24V industrial compliance.
推薦
Portable / Battery-Powered Instrumentation
The ADC104S101CIMMX/NOPB's low power (3.6 mW typical at 1 Msps with 3 V supply) and microamp-level standby current suit portable, battery-powered instruments such as handheld multimeters, data loggers, and field-test gear. With a 3 V lithium coin cell or two AA cells powering VA, four analog inputs can monitor battery voltage, sensor output, and user inputs continuously. The SAR architecture's deterministic latency means each conversion completes in a fixed number of SCLK cycles, simplifying firmware timing. Implement duty-cycled sampling (1 active ms per second) to extend battery life - the internal power-down between conversions pulls VA current to microamp levels when not actively sampling.
推薦
System Health Monitoring in Embedded Systems
Embedded computing boards frequently need to monitor 2.7 V to 5.25 V rails, board temperatures via on-chip diodes, and fan tach feedback - all of which the ADC104S101CIMMX/NOPB can digitize via its four inputs. Place the ADC on the management bus, route the SPI signals to the baseboard management controller, and use the SAR's deterministic latency to alert on out-of-range readings within microseconds. The MSOP-10 footprint consumes minimal PCB area even in dense server or router designs. Pair the ADC with the TI LM95010 or TMP100 temperature sensors for temperature channels and use simple resistor dividers for high-voltage rails.
推薦
Consumer Audio / Video Signal-Level Measurement
Consumer audio/video equipment such as AV receivers, set-top boxes, and television monitors can use the ADC104S101CIMMX/NOPB to measure audio line levels, video bias voltages, and power-supply rails for automatic calibration. Four channels allow simultaneous monitoring of left-channel, right-channel, supply, and temperature within a single MSOP-10 footprint. The 10-bit resolution is more than adequate for level-meter display functions and is comfortably within consumer-grade accuracy requirements. Run the SPI directly to the main audio DSP or microcontroller, and add ESD protection diodes (such as TPD4E004) at each analog input connector for hot-plug robustness.
推薦
Automotive Sensor Interfaces (Non-Safety)
While the ADC104S101CIMMX/NOPB is not AEC-Q100 qualified, it is widely used in non-safety automotive body and chassis applications such as battery management analog front-ends, lighting controllers, and HVAC actuators. Its -40 C to +85 C industrial temperature range covers most cabin environments, and its 10-bit resolution suits body-control sensor readbacks. Place the IC inside the body-control module, route the four analog inputs to throttle position, ambient light, battery voltage, and temperature, and use the SPI bus to report values back to the main microcontroller. For AEC-Q100 safety-critical applications, choose the ADC104S101-Q1 equivalent if available, or pair with external diagnostics.
推薦
推薦產品摘要
工程參考資料，適用於 ADC104S101CIMMX/NOPB — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | ADC104S101CIMM/NOPB | ADC104S101CIMMX | ADC084S101CIMMX | ADC104S051CIMM | ADC102S101CIMMX/NOPB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | MSOP-10 (DGS) | MSOP-10 (DGS) - same | MSOP-10 (DGS) - same | MSOP-10 (DGS) - same | MSOP-10 (DGS) - same | MSOP-10 (DGS) - same |
| Resolution | 10 bit | 10 bit | 10 bit | 8 bit | 10 bit | 12 bit |
| Number of Channels | 4 | 4 | 4 | 4 | 2 | 2 |
| Sample Rate | 500 ksps to 1 Msps | 500 ksps to 1 Msps | 500 ksps to 1 Msps | 500 ksps to 1 Msps | 500 ksps to 1 Msps | 500 ksps to 1 Msps |
| Supply Voltage | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V | 2.7 V to 5.25 V |
| Architecture | SAR | SAR | SAR | SAR | SAR | SAR |
| Pinout | 10-pin MSOP standard | Identical | Identical | Identical | Identical (2 channels unused) | Identical (2 channels unused) |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
主要差異化特點
- Full 500 ksps to 1 Msps guaranteed range (對比ADC084S101CIMMX)
- True 4-channel integrated MUX (對比ADC104S051CIMM)
- Drop-in scalable resolution with same pinout (對比ADC102S101CIMMX/NOPB)
設計說明
Place a 0.1 uF ceramic bypass capacitor within 5 mm of the VA pin and an additional 10 uF bulk capacitor at the supply entry point. Keep analog input traces short and routed over a continuous ground plane to minimize digital-to-analog coupling. Avoid routing SCLK/DOUT traces parallel to AIN traces to reduce digital switching noise coupling into the analog front-end.
Use a low-noise reference source for VREF (such as the TI REF3030 or REF3312) because VREF noise directly appears at the ADC output. If ratiometric measurements are acceptable, tie VA directly to VREF and scale the analog inputs accordingly. Add a small RC filter (10 ohm + 0.1 uF) at the VREF pin to suppress reference noise above the ADC's input bandwidth.
Drive each AIN input through a low-output-impedance op-amp buffer (such as the OPA2333) to settle the SAR's input sampling capacitor within the acquisition time. The ADC's internal sampling cap draws transient current spikes at the start of each conversion - a weak source impedance (above about 1 kohm) will degrade THD and INL. Add a small RC anti-alias filter (typically 100 ohm + 1 nF) at each AIN for noise and overvoltage protection.
Do not leave unused analog inputs floating - tie them to GND or a known mid-rail voltage to prevent leakage currents from disturbing adjacent channels. Ensure CS is held low for the full duration of the 16 SCLK cycles needed for a complete conversion, otherwise the data frame will be misaligned. When cascading multiple ADC104S101 chips on a shared SPI bus, use separate CS lines per chip and verify that DOUT returns to high-Z between frames.
合規資訊
/NOPB suffix indicates lead-free, RoHS-compliant packaging per TI part-number convention. Not AEC-Q100 qualified - choose ADC104S101-Q1 family for automotive safety-critical applications.
