ADC088S052CIMTX - 8-Ch 8B 200-500kSPS SAR ADC | Texas Instruments
部品番号: ADC088S052CIMTX ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $3.05 | $3.05 |
| 10 | $2.78 | $27.80 |
| 100 | $2.15 | $215.00 |
| 500 | $1.74 | $870.00 |
| 1,000 | $1.42 | $1,420.00 |
| 2,500 | $1.18 | $2,950.00 |
ADC088S052CIMTX 概要
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that transforms continuously variable analog voltages into a digital code proportional to the input. SAR ADCs use a binary-search algorithm implemented in switched-capacitor DAC hardware to perform one bit per clock cycle, delivering deterministic latency (one conversion-cycle delay) and excellent DC accuracy with no pipeline-induced distortion. The 8-bit, 8-channel SAR topology sits within the broader hierarchy: SAR ADC -> successive-approximation ADC -> ADC -> data converter -> mixed-signal IC -> semiconductor. This ADC family specifically targets low-channel-count multiplexed applications where simplicity, low power, and small package are valued over raw conversion speed or higher resolution.
Key features of the ADC088S052 family include independent analog (V_A) and digital (V_D) supply pins that allow the analog and digital sections to operate from different rails - useful for isolating digital switching noise from sensitive analog inputs in mixed-signal boards. The serial interface is mode-configurable and operates as a standard SPI/QSPI/MICROWIRE slave, simplifying firmware development on virtually any modern microcontroller. An internal reference or an externally applied reference may be selected, depending on system accuracy requirements.
Typical applications include multi-channel sensor monitoring in industrial process control, battery-cell voltage monitoring in battery-management systems, portable and handheld instrumentation, and general-purpose data-acquisition front ends. The eight input channels are particularly efficient when several sensor signals (temperature, pressure, position) must be sampled from a single board.
When designing with this ADC, decouple V_A and V_D separately near the IC pins, keep analog traces short and guarded from digital switching, and ensure the SPI clock does not exceed the converter's specified maximum at the chosen throughput rate. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet cover page.
ドロップイン代替品: ADC088S052CIMTX — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: ADC088S052CIMTX （同一形状・フットプリント） — 相違点: Number of Input Channels, RoHS Status, Data Interface, Operating Temperature, Package / Case.
クイック比較ツール — 並列比較する代替部品を選択:
ADC088S052CIMT/NOPB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADC088S052CIMT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
ADC08832IMMX/NOPB
✅ ドロップイン✓ 在庫あり
$0.71 / 個
データシートを見る →ADC08831IMX
✅ ドロップイン✓ 在庫あり
$0.78 / 個
データシートを見る →ADC084S101CIMMX
✅ ドロップイン✓ 在庫あり
$1.62 / 個
データシートを見る →ADC088S052CIMTX 最大定格＆電気的特性
| 分解能 | 8 Bits |
| Number of Input Channels | 8 (IN0-IN7) |
| Conversion Architecture | SAR (Successive Approximation Register) |
| Sample Rate | 200 kSPS to 500 kSPS |
| Input Type | Single-Ended |
| Digital Interface | SPI / QSPI / MICROWIRE-compatible serial |
| Output Data Format | Straight binary |
| Number of Converters | 1 |
| 動作温度範囲 | -40C to +105C |
| パッケージ | 16-TSSOP (MT) |
| 実装タイプ | Surface Mount |
| Internal Track-and-Hold | Yes |
| RoHS ステータス | Compliant (refer to manufacturer part ordering suffix) |
ADC088S052CIMTX ピン構成
| ピン 1 | V_A — Analog supply voltage input |
| ピン 2 | IN0 — Analog input channel 0 |
| ピン 3 | IN1 — Analog input channel 1 |
| ピン 4 | IN2 — Analog input channel 2 |
| ピン 5 | IN3 — Analog input channel 3 |
| ピン 6 | IN4 — Analog input channel 4 |
| ピン 7 | IN5 — Analog input channel 5 |
| ピン 8 | IN6 — Analog input channel 6 |
| ピン 9 | IN7 — Analog input channel 7 |
| ピン 10 | GND — Ground |
| ピン 11 | V_D — Digital supply voltage input |
| ピン 12 | REF — Voltage reference input/output |
| ピン 13 | /CS — Chip select (active low) |
| ピン 14 | DOUT — Serial data output |
| ピン 15 | SCLK — Serial clock input |
| ピン 16 | V_A — Analog supply (tied to pin 1) |
主な用途
ADC088S052CIMTX の用途: 6 件s: Industrial Multi-Sensor Monitoring, Battery Cell Voltage Monitoring (BMS), Portable Instrumentation and Handheld Meters, General-Purpose Data Acquisition Front End, HMI Touch and Potentiometer Sensing, LED Lighting Feedback and Color Sensing.
Industrial Multi-Sensor Monitoring
The ADC088S052CIMTX is well-suited for industrial multi-sensor monitoring boards where 4-8 analog sensors (temperature via NTC/PT1000 front ends, pressure transducers, 4-20 mA loop shunts) must be digitized by a single MCU companion IC. Its 8 input multiplexer lets one TSSOP-48 spreadsheet of analog signals share one ADC, while 200-500 kSPS throughput easily handles 1 kHz per-channel updates for eight channels simultaneously. Compared with a higher-resolution 12/24-bit sigma-delta ADC, the 8-bit SAR delivers faster conversions, deterministic latency, and lower cost - acceptable when measurement accuracy of ~0.4% LSB is sufficient. The TSSOP-16 footprint fits compact PLC analog input modules and is rated -40C to +105C for factory-floor environments.
おすすめ
Battery Cell Voltage Monitoring (BMS)
The ADC088S052CIMTX fits low-to-mid-tier multi-cell battery-monitoring boards where 6-12 series cells can be routed through external resistor dividers into the eight input channels. Each channel handles one cell voltage (scaled by the divider), and 200-500 kSPS throughput allows all eight channels to be sampled within microseconds - critical for synchronous state-of-charge calculations in lithium packs. The independent V_A and V_D supply pins let the analog section ride on a regulated cell-tap rail while the digital section sits on 3.3 V MCU rail, simplifying isolation layout. Compared with dedicated battery-monitoring ASICs, this ADC approach is more flexible but adds an external MCU for cell-balancing logic; designers should add RC filters on each input to reject inverter/load switching noise common in EV battery environments.
おすすめ
Portable Instrumentation and Handheld Meters
The ADC088S052CIMTX suits portable handheld meters (digital multimeters, clamp meters, environmental monitors) where 8-bit resolution is sufficient and power budget is tight. Its low-power CMOS SAR architecture and ability to power down between bursts support battery-life targets of weeks to months on 2x AA cells. The TSSOP-16 footprint leaves board space for an LCD driver and MCU on small PCBs. Compared with integrating ADCs used in higher-precision DMMs, the SAR approach offers lower latency for auto-ranging designs where the MCU needs a fresh conversion within a few conversion cycles after a range change. The SPI-compatible serial interface directly drives small Cortex-M0 MCUs.
おすすめ
General-Purpose Data Acquisition Front End
The ADC088S052CIMTX is well-suited as a general-purpose data-acquisition front end for PC-based DAQ cards, USB instrumentation pods, and bench-top test equipment that require 8 channels of 8-bit digitization at hundreds of kSPS. The SPI/QSPI/MICROWIRE-compatible serial output allows the ADC to be clocked by an FPGA or microcontroller over a short board trace, simplifying multi-board synchronization. 8-bit resolution is acceptable for many vibration, audio-band, and control-loop feedback applications where the signal of interest is well above the 1-LSB quantization floor. Designers should add anti-alias RC filters on each input and verify that the SPI clock rate does not exceed the datasheet maximum at the chosen throughput setting.
おすすめ
HMI Touch and Potentiometer Sensing
The ADC088S052CIMTX handles HMI front-panel applications where multiple potentiometers, rotary encoders (with analog tap), or resistive touch-screen overlays must be digitized. Each of the 8 input channels can read one potentiometer wiper or one touch-screen corner voltage, providing enough channels for 2-3 potentiometers plus a 4-wire resistive touch layer. The 8-bit resolution is adequate for typical user-interface feedback where the resulting digital code is mapped to a coarse bar-graph or rotary position display. Compared with dedicated touch-screen ASICs, this approach uses a general-purpose ADC and is more flexible for mixed front-panel designs combining pots, switches, and touch.
おすすめ
LED Lighting Feedback and Color Sensing
The ADC088S052CIMTX fits RGB color-sensor and LED-feedback boards where photodiode currents (after transimpedance amplifiers) are digitized for color-temperature feedback loops. The 8 input channels can monitor multiple photodiodes on a multi-LED luminaire or a TCS34725-style color sensor breakout. 8-bit resolution is sufficient for closed-loop color-mixing feedback where the controller adjusts PWM duty cycles based on sensed color components. The TSSOP-16 footprint fits small LED-driver PCBs alongside buck/boost driver ICs. Designers should add bias-voltage RC networks to each photodiode amplifier output and verify ADC sampling does not alias with the LED PWM frequency.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: ADC088S052CIMTX — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | ADC088S052CIMT/NOPB | ADC088S052CIMT | ADC08832IMMX/NOPB | ADC08831IMX | ADC084S101CIMMX |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 8 Bits | 8 Bits | 8 Bits | 8 Bits | 8 Bits | 8 Bits |
| Number of Input Channels | 8 (IN0-IN7) | 8 (IN0-IN7) | 8 (IN0-IN7) | 8 (IN0-IN7) | 2 (IN0-IN1) | 4 (IN0-IN3) |
| Sample Rate | 200 kSPS to 500 kSPS | 200 kSPS to 500 kSPS | 200 kSPS to 500 kSPS | 200 kSPS to 500 kSPS | 200 kSPS to 500 kSPS | 200 kSPS to 500 kSPS |
| Conversion Architecture | SAR | SAR | SAR | SAR | SAR | SAR |
| Serial Interface | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE | SPI/QSPI/MICROWIRE |
| RoHS Status | Compliant | Compliant (lead-free NOPB) | Compliant | Compliant (lead-free NOPB) | Compliant | Compliant |
主な差別化要因
- Independent analog and digital supply pins （vs Single-rail 8-bit ADCs (e.g., ADC0831))
- 8 single-ended input channels on a single ADC die （vs 2- or 4-channel 8-bit SAR ADCs (e.g., ADC084S101CIMMX))
- Industry-standard SPI/QSPI/MICROWIRE serial interface （vs Parallel-output 8-bit ADCs)
設計ノート
The ADC088S052CIMTX has independent analog (V_A) and digital (V_D) supply pins. Decouple V_A with a 10uF tantalum (or low-ESR ceramic) plus a 0.1uF ceramic placed within 5 mm of the V_A pin. Decouple V_D separately with a 1uF plus 0.1uF ceramic. Star-ground both returns to a single ground plane via separate vias to avoid digital switching noise coupling into the analog reference. This split-supply topology lets the analog section ride on a quieter regulator while the digital section sits on the noisy 3.3 V or 5 V MCU rail.
Route analog input traces (IN0-IN7) over a continuous ground plane and keep them short and guarded from digital SPI traces. Place an RC anti-alias filter (typically 100 ohm plus 1 nF to 10 nF) on each input, sized so the RC bandwidth is well above the desired signal bandwidth but well below the ADC's effective sampling bandwidth. Keep REF traces short; if using an external reference, place the reference IC within 10 mm of the REF pin and add a 0.1 uF decoupling cap directly at the pin.
Verify the SPI clock (SCLK) does not exceed the maximum specified at the chosen throughput rate. At 500 kSPS the SCLK upper bound is constrained by the SAR conversion-time budget; running SCLK too fast will degrade INL or cause conversion errors. Route /CS, SCLK, and DOUT as a controlled-impedance group with matched length and series-terminate SCLK near the MCU if the route exceeds 50 mm. The DOUT line should have a series resistor close to the ADC to dampen reflections.
Do not exceed the absolute-maximum analog input voltage on IN0-IN7, which equals V_A plus 0.3 V. Input voltages beyond V_A can forward-bias ESD clamps and inject charge into the input sampling capacitor, corrupting conversions on adjacent channels. Add external clamping (TVS or schottky) if the input source can exceed V_A. Also ensure the reference voltage is stable before initiating conversions - hold /CS high or gate SCLK until the reference settles after power-up.
コンプライアンス情報
RoHS compliant per TI product-page ordering information. NOPB suffix explicitly denotes lead-free terminal finish. AEC-Q100 qualification status not confirmed in verified web data - assume not qualified for automotive ECU applications.
