ADC104S051CIMM - 10-Bit 4-Ch 200-500ksps SAR ADC | Texas Instruments
MPN: ADC104S051CIMM ✓ Hoạt độngADC104S051CIMM Tóm tắt
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.
Bộ thay thế dễ dàng lắp đặt cho ADC104S051CIMM — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với ADC104S051CIMM (cùng hình factor và footprint) — khác nhau ở Package, Digital Interface, Number of Input Channels, Operating Temperature, Input Type.
ADC104S051CIMM/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC104S021CIMM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC104S101CIMM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC104S051CIMMX
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC102S051CIMM
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADC122S051CIMM
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADC102S101CIMM
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC102S101CIMMX/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC104S051CIMM Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 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 |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C |
| Hộp | 10-pin VSSOP (DGS), 3 mm x 3 mm |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Screening Level | Industrial |
Cấu hình chân ADC104S051CIMM
| Chân 1 | CH0 — Analog input channel 0 |
| Chân 2 | CH1 — Analog input channel 1 |
| Chân 3 | CH2 — Analog input channel 2 |
| Chân 4 | CH3 — Analog input channel 3 |
| Chân 5 | COM — Common analog input (reference low) |
| Chân 6 | GND — Ground |
| Chân 7 | SCLK — Serial clock input |
| Chân 8 | DOUT — Serial data output (MOSI from host to ADC: input, MISO from ADC to host: output) |
| Chân 9 | CS — Chip select (active low) |
| Chân 10 | AVDD — Analog supply voltage (2.7 V to 5.25 V) |
Ứng dụng tiêu biểu
ADC104S051CIMM phù hợp cho 6 Áp dụngs: 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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
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.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC104S051CIMM — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | 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 |
Bảo phân biệt quan trọng
- 4 channels in a tiny 10-pin VSSOP footprint (vsADC102S051CIMM)
- Higher sample rate than the 021 family member (vsADC104S021CIMM)
- Lower resolution but wider 4-channel mux vs 12-bit 2-channel siblings (vsADC104S101CIMM)
Ghi chú thiết kế
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'.
Thông tin tuân thủ
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.
