ADC104S051CIMM - 10-Bit 4-Ch 200-500ksps SAR ADC | Texas Instruments
부품 번호: ADC104S051CIMM ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.62 | $26.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.84 | $920.00 |
| 1,000 | $1.55 | $1,550.00 |
ADC104S051CIMM 개요
A SAR ADC is a type of analog-to-digital converter that uses a binary-search successive-approximation algorithm against an internal DAC to digitize an input voltage in N clock cycles for N bits of resolution. SAR ADCs sit in the broader hierarchy of data converter -> ADC -> successive-approximation ADC -> precision converter, and are preferred over flash ADCs for their low power, small die area, and ability to deliver 8 to 18 bits of resolution at hundreds of kiloseconds per second.
Key features include a single analog supply from 2.7 V to 5.25 V, a high-speed SPI/QSPI/MICROWIRE-compatible serial interface, four single-ended analog input channels multiplexed into the SAR core, and typical power consumption of 2.7 mW at 3 V and 8.6 mW at 5 V. The output data is straight binary, framing each conversion with a 16-bit serial word so that the channel ID is embedded in the upper bits and the 10-bit conversion result is right-aligned.
The architecture uses a charge-redistribution DAC array with sample-and-hold on each conversion, producing 10-bit linearity and low-latency deterministic behavior ideal for multiplexed sensor scanning. Industrial-grade temperature range is -40 C to +85 C, and the small VSSOP-10 footprint allows placement next to analog sensor headers on two-layer and four-layer boards.
Typical applications include industrial process control, portable instrumentation, battery-powered data loggers, optical sensor monitoring, and consumer multichannel data acquisition. The wide 2.7 V to 5.25 V supply range means a single ADC104S051CIMM can be powered from a 3.3 V microcontroller rail, a 5 V analog rail, or directly from a Li-ion battery stack through a small LDO.
When designing with this device, place a 0.1 uF decoupling capacitor within 3 mm of the AVDD pin and keep analog input traces short and guarded to minimize crosstalk between the four channels. The 16-bit serial frame and standard SPI mode 0/3 timing let it interface directly to nearly any microcontroller or DSP without glue logic.
This page synthesizes distributor pricing, same-family and cross-brand drop-in alternatives, and practical design notes that are not collected in the manufacturer datasheet, giving engineers a single reference for part selection, footprint reuse, and BOM risk reduction.
드롭인 대체품: ADC104S051CIMM — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: ADC104S051CIMM (동일 폼 팩터 및 풋프린트) — 차이점: Package, Digital Interface, Number of Input Channels, Operating Temperature, Input Type.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
ADC104S051CIMM/NOPB
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADC104S021CIMM
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADC104S101CIMM
✅ 드롭인✓ 재고 있음
$1.88 / 개
데이터시트 보기 →ADC104S051CIMMX
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
ADC102S051CIMM
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1.52 / 개
데이터시트 보기 →ADC122S051CIMM
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
ADC102S101CIMM
✅ 드롭인✓ 재고 있음
$1.55 / 개
데이터시트 보기 →ADC102S101CIMMX/NOPB
✅ 드롭인✓ 재고 있음
$2.1 / 개
데이터시트 보기 →ADC104S051CIMM 최대 정격 & 전기적 특성
| 분해능 | 10 bit |
| Number of Input Channels | 4 (single-ended, multiplexed) |
| Converter Architecture | Successive Approximation (SAR) |
| Sample Rate | 200 ksps to 500 ksps |
| Analog Supply Voltage | 2.7 V to 5.25 V |
| Digital I/O Supply | Same as AVDD (single-supply operation) |
| Analog Input Voltage Range | 0 V to AVDD |
| Typical Power Consumption (3V) | 2.7 mW |
| Typical Power Consumption (5V) | 8.6 mW |
| Serial Interface | SPI / QSPI / MICROWIRE compatible, mode 0/3 |
| Output Data Format | Straight binary, 16-bit serial frame |
| 동작 온도 범위 | -40 C to +85 C |
| 패키지 | 10-pin VSSOP (DGS), 3 mm x 3 mm |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant |
| Screening Level | Industrial |
ADC104S051CIMM 핀 구성
| 핀 1 | CH0 — Analog input channel 0 |
| 핀 2 | CH1 — Analog input channel 1 |
| 핀 3 | CH2 — Analog input channel 2 |
| 핀 4 | CH3 — Analog input channel 3 |
| 핀 5 | COM — Common analog input (reference low) |
| 핀 6 | GND — Ground |
| 핀 7 | SCLK — Serial clock input |
| 핀 8 | DOUT — Serial data output (MOSI from host to ADC: input, MISO from ADC to host: output) |
| 핀 9 | CS — Chip select (active low) |
| 핀 10 | AVDD — Analog supply voltage (2.7 V to 5.25 V) |
일반적인 애플리케이션
ADC104S051CIMM 적합 용도: 6 애플리케이션s: Industrial Process Control Multichannel Data Acquisition, Portable Battery-Powered Data Loggers, Optical Sensor and Photodiode Monitoring, Consumer Multichannel HMI and Control Panels, Test and Measurement Front-Ends, Power Management Rail Monitoring.
Industrial Process Control Multichannel Data Acquisition
The ADC104S051CIMM's 4 single-ended input channels and 200-500 ksps sample rate make it a strong fit for industrial process control boards that scan 2-4 sensors (temperature, pressure, flow) at kHz rates. With 2.7-5.25 V supply tolerance, it accepts both 3.3 V and 24 V-derived rails, and the SPI/QSPI/MICROWIRE interface connects directly to common MCUs. Typical 10-bit resolution (1 LSB ~5 mV at 5 V) is sufficient for thermocouple, RTD, and 4-20 mA conditioned signals. The VSSOP-10 footprint enables placement next to screw terminals on a compact PLC analog front end.
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Portable Battery-Powered Data Loggers
The ADC104S051CIMM's 2.7 mW typical power consumption at 3 V is well within the thermal budget of a Li-ion or 2x AA powered data logger, and the wide 2.7-5.25 V supply range lets it run directly from a battery or a low-dropout regulator. The 4-channel multiplexer lets a single ADC replace four single-channel ADCs, reducing both cost and quiescent current. The industrial -40 C to +85 C operating range covers outdoor and automotive interior deployments. Engineers typically use the /CS pin to put the part into shutdown between scans, dropping consumption to microamp levels for sub-Hz sampling.
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Optical Sensor and Photodiode Monitoring
Multiplexed photodiode, color sensor, or ambient light sensor arrays benefit from the ADC104S051CIMM's 4 channels and 200-500 ksps throughput, which is fast enough to capture AC flicker components or fast optical transients. The 16-bit serial frame includes a 4-bit channel ID, simplifying firmware when reading out 4 different light bands. The single-supply operation eliminates level shifting between sensor analog front ends and a 3.3 V MCU. Place 0.1 uF ceramic bypass close to AVDD and add a small RC antialias filter on each input for high-IM3 rejection.
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Consumer Multichannel HMI and Control Panels
Consumer home appliances, white goods, and HMI panels often need 4 analog inputs (temperature, level, motor current, dial position) at modest sample rates, where a 10-bit ADC104S051CIMM is the right resolution at the right cost. The 2.7-5.25 V supply range accepts 3.3 V MCU rails and 5 V analog rails alike, while the SPI interface requires only 3-4 GPIO pins. The VSSOP-10 footprint is small enough to fit next to a touch-sensor IC and a small MCU in a compact 4 cm x 4 cm HMI module.
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Test and Measurement Front-Ends
Bench multimeters, low-end oscilloscope front ends, and bench-top sensor calibrators benefit from the ADC104S051CIMM's 4 channels, 500 ksps top sample rate, and 10-bit linearity. The wide input range 0 V to AVDD simplifies input protection and signal conditioning, while the SPI interface allows a host FPGA or DSP to buffer and time-stamp each conversion. The 10-bit resolution is enough for general-purpose logging and slow signal display, and the same footprint can later be upgraded to the 12-bit ADC104S101CIMM for higher precision without PCB rework.
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Power Management Rail Monitoring
Each output rail of a multi-rail power supply (3.3 V, 1.8 V, 1.2 V, 1.0 V) can be monitored by one channel of the ADC104S051CIMM, with the ADC powered from a clean 3.3 V or 5 V auxiliary supply. The 10-bit resolution over 0-5 V range (4.88 mV LSB) is sufficient for voltage margin testing and fault detection. The 500 ksps top rate enables simultaneous sampling of multiple rails for sequencing verification. Place a small RC antialiasing filter on each rail input to attenuate switching noise from the upstream DC-DC converter.
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추천 제품 요약
엔지니어링 참조 데이터: ADC104S051CIMM — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | ADC104S051CIMM/NOPB | ADC104S021CIMM | ADC104S101CIMM | ADC104S051CIMMX | ADC102S051CIMM |
|---|---|---|---|---|---|---|
| Package | 10-VSSOP (DGS) 3x3 mm | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same | 10-VSSOP (DGS) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 10 bit | 10 bit | 10 bit | 12 bit | 10 bit | 10 bit |
| Number of Channels | 4 | 4 | 4 | 4 | 4 | 2 |
| Sample Rate | 200 to 500 ksps | 200 to 500 ksps | 50 to 200 ksps | 200 to 500 ksps | 200 to 500 ksps | 200 to 500 ksps |
| 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 |
| Interface | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE |
| 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 |
| Approx. Unit Price (qty-1) | $2.95 | $2.95 | Lower | Higher | $2.95 | Lower |
주요 차별점
- 4 channels in a tiny 10-pin VSSOP footprint (vs ADC102S051CIMM)
- Higher sample rate than the 021 family member (vs ADC104S021CIMM)
- Lower resolution but wider 4-channel mux vs 12-bit 2-channel siblings (vs ADC104S101CIMM)
설계 노트
Place a 0.1 uF ceramic decoupling capacitor within 3 mm of the AVDD pin (pin 10), with a short, low-inductance trace to the adjacent GND (pin 6). For designs near high-current switching converters, add a 10 uF bulk capacitor close to the supply feed. The VSSOP-10 thermal pad (if present on the specific TI package) should be soldered to a copper pour connected to GND to reduce ground bounce on the analog input channels during rapid channel switching.
Use a small RC antialiasing filter on each of CH0-CH3, sized for the highest signal of interest. For a 500 ksps sample rate, the input filter bandwidth should be less than 250 kHz (Nyquist), with a typical corner of 50-150 kHz to allow for transition band. Keep analog input traces short and guarded by a ground plane on the opposite PCB layer to minimize crosstalk between channels, since the SAR core's charge-redistribution DAC can couple small transients back to the input during bit trials.
Do not leave the COM pin (pin 5) floating - tie it to the same ground reference as the analog sources, or to a low-impedance mid-supply bias point for differential-style measurements. Always toggle CS high after each conversion frame to reset the serial framing logic; missing this handshake can corrupt the next conversion result. For shutdown between scans, drive CS high and idle SCLK low; this drops supply current to microamp levels per the datasheet, which is critical for battery-powered designs that sample below 1 Hz.
Route the SPI signals (SCLK, DOUT, CS) on the opposite PCB layer from the analog input traces, with a continuous ground plane between them. Keep the SPI clock trace short (under 50 mm) to avoid ringing at the ADC's input; if the MCU is far from the ADC, add a 33 ohm series damping resistor at the SCLK source. The DOUT line should be kept clear of the analog inputs to prevent digital noise coupling into the SAR conversion. Reference: TI 'ADC104S051 datasheet, Layout section'.
규정 준수 정보
RoHS-compliant per the /NOPB orderable variant per TI product page. The non-/NOPB MPN (ADC104S051CIMM) appears on older distributor listings; the /NOPB variant is the current RoHS order code.
