THS1230IPWRG4 - 12-Bit 30 MSPS Low-Power ADC | Texas Instruments
부품 번호: THS1230IPWRG4 ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $6.85 | $6.85 |
| 10 | $6.18 | $61.80 |
| 100 | $5.49 | $549.00 |
| 500 | $4.95 | $2,475.00 |
| 1,000 | $4.42 | $4,420.00 |
THS1230IPWRG4 개요
An analog-to-digital converter (ADC) is a data-conversion integrated circuit that samples a continuous analog waveform at a fixed clock rate and quantizes each sample into a binary code. ADCs sit in the broader signal-chain hierarchy of: ADC -> data converter -> data acquisition IC -> semiconductor. The THS1230 family uses a pipelined architecture (per the GlobalSpec datasheet synopsis) to balance conversion speed, power dissipation, and dynamic range, making it suitable for battery-operated and thermally constrained designs.
Key specifications include 12-bit resolution, 30 MSPS maximum sampling rate, 3.3 V single-supply operation, and configurable analog input paths. The PW suffix denotes the industrial-temperature grade (-40 C to +85 C) in tape-and-reel packaging, while the G4 suffix indicates a Pb-free / RoHS-compliant terminal finish. A power-down pin reduces quiescent dissipation between conversions, which is critical for low-duty-cycle battery applications such as portable instrumentation or remote sensor nodes.
Architecturally, the pipelined core typically resolves a sample over multiple clock cycles using sub-ADC stages and a digital error-correction block; this allows high throughput at moderate power budgets. The configurable input block (single-ended, single-ended with offset, differential) effectively acts as an on-chip front-end multiplexer, eliminating external signal-conditioning stages in many designs and shortening the analog signal path for improved SNR.
Typical applications include portable and handheld digital oscilloscope front-ends, digital IF sampling for communications receivers, CCD/CIS image-scanner digitizers, ultrasound beamformer input stages, and baseband digitization in low-power wireless links. The combination of low power, integrated input mux, and small TSSOP-28 footprint also suits portable test-and-measurement and industrial data-acquisition modules where PCB area is at a premium.
When designing with the THS1230IPWRG4, ensure the analog input common-mode voltage and reference decoupling follow the datasheet guidance; insufficient decoupling is the most common source of degraded SNR and spurious tones. For best noise performance, place the 0.1 uF and 10 uF decoupling capacitors within 5 mm of the AVDD pins and keep the analog input traces impedance-controlled and length-matched where differential mode is used.
This page synthesizes distributor stock, same-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single-citation source for selection, replacement, and PCB-level implementation guidance.
드롭인 대체품: THS1230IPWRG4 — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: THS1230IPWRG4 (동일 폼 팩터 및 풋프린트) — 차이점: Package, Resolution, RoHS Status, Number of Channels, Sampling Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
THS1230IPWR
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
THS1230IPWG4
✅ 드롭인 ⚠️ 사양 미검증📋 참조 대체품 (카탈로그에 없음)
THS1215IPWG4
✅ 드롭인✓ 재고 있음
$5.45 / 개
데이터시트 보기 →THS1040CPWRG4
✅ 드롭인✓ 재고 있음
$4.1 / 개
데이터시트 보기 →THS1031IPWRG4
✅ 드롭인✓ 재고 있음
$3.42 / 개
데이터시트 보기 →THS1230IPWRG4 최대 정격 & 전기적 특성
| 분해능 | 12 bit |
| 샘플링 속도 | 30 MSPS |
| Number of Input Channels | 1 |
| Architecture | Pipelined |
| 공급 전압 | 3.3 V (single supply) |
| Input Configuration | Single-ended / Single-ended with offset / Differential |
| Power-Down Mode | Yes (integrated) |
| 동작 온도 범위 | -40 C to +85 C (industrial grade) |
| 패키지 | 28-TSSOP (PW) |
| 실장 유형 | Surface Mount |
| Terminal Form | Gull Wing |
| Package Code | TSSOP |
| RoHS 상태 | Compliant (Pb-free, G4 suffix) |
| Lead Free | Yes |
THS1230IPWRG4 핀 구성
| 핀 1 | AVDD — Analog 3.3 V supply |
| 핀 2 | REFT — Top reference decoupling |
| 핀 3 | REFB — Bottom reference decoupling |
| 핀 4 | AGND — Analog ground |
| 핀 5 | IN+ — Differential analog input (positive) |
| 핀 6 | IN- — Differential analog input (negative) |
| 핀 7 | VBIAS — Bias voltage bypass |
| 핀 8 | PWDN — Power-down input (active high) |
| 핀 9 | CLK — Sample clock input |
| 핀 10 | AVDD — Analog 3.3 V supply (pin) |
| 핀 11 | AGND — Analog ground |
| 핀 12 | D0 — Digital output bit 0 (LSB) |
| 핀 13 | D1 — Digital output bit 1 |
| 핀 14 | D2 — Digital output bit 2 |
| 핀 15 | D3 — Digital output bit 3 |
| 핀 16 | D4 — Digital output bit 4 |
| 핀 17 | D5 — Digital output bit 5 |
| 핀 18 | D6 — Digital output bit 6 |
| 핀 19 | D7 — Digital output bit 7 |
| 핀 20 | D8 — Digital output bit 8 |
| 핀 21 | D9 — Digital output bit 9 |
| 핀 22 | D10 — Digital output bit 10 |
| 핀 23 | D11 — Digital output bit 11 (MSB) |
| 핀 24 | DRVDD — Digital output driver 3.3 V supply |
| 핀 25 | DRGND — Digital output driver ground |
| 핀 26 | DVDD — Digital core 3.3 V supply |
| 핀 27 | DGND — Digital ground |
| 핀 28 | OE — Output enable (active low) |
일반적인 애플리케이션
THS1230IPWRG4 적합 용도: 6 애플리케이션s: Portable Digital Oscilloscope Front-End, Digital IF Sampling for Communications Receivers, CCD / CIS Image-Scanner Digitizer, Ultrasound Beamformer Input Stage, Industrial Data Acquisition Modules, Battery-Powered Portable Instrumentation.
Portable Digital Oscilloscope Front-End
The THS1230IPWRG4 fits portable oscilloscope front-ends because its 30 MSPS sampling rate delivers 15 MHz of Nyquist bandwidth on a single 3.3 V rail, matching the bandwidth of many low-cost handheld scopes. The pipelined 12-bit core provides 72 dB SNR-enough vertical resolution for general-purpose waveform analysis of digital, sensor, and audio-bandwidth signals. Power-down between trigger events reduces average quiescent current below ~15 mW typical, extending battery runtime during auto-triggered or single-shot captures on field-instrument channels. Place the device on the analog layer close to the front-end attenuator/amplifier chain and feed its output to an FPGA or DSP for sample buffering.
추천
Digital IF Sampling for Communications Receivers
For digital-IF signal chains, the THS1230IPWRG4 samples intermediate-frequency outputs directly at up to 30 MSPS, allowing software-defined radios (SDR) to digitize IF stages in the 0-15 MHz band. The 12-bit dynamic range and integrated power-down mode between bursts suit TDMA and packet-radio receiver architectures where the converter is duty-cycled. The configurable differential input mode rejects common-mode noise from the IF mixer output, while the single-ended mode is convenient for direct-conversion low-IF paths. Combined with a digital down-converter in an FPGA, this ADC forms the core of a low-power SDR receiver.
추천
CCD / CIS Image-Scanner Digitizer
The THS1230IPWRG4 is well-suited to digitize linear-array CCD or CIS sensor outputs in document scanners, barcode readers, and industrial line-scan cameras. A 12-bit resolution preserves grayscale gradients down to ~0.025% per LSB, sufficient for 8-bit-per-channel image pipelines with headroom for sensor non-linearity correction. The configurable input (single-ended with offset) directly handles CCD output levels shifted by the source-follower stage. Operating at line rates below 30 MSPS with the integrated power-down between lines keeps total scan-head power dissipation low, important for compact USB-powered scanner designs.
추천
Ultrasound Beamformer Input Stage
In low-channel-count ultrasound front-ends, the THS1230IPWRG4 converts the beamformer channel outputs to 12-bit digital words at 30 MSPS, sufficient for medical-imaging sample rates up to 30 MHz. Single-3.3-V supply operation simplifies isolated patient-connection power design, while the integrated power-down allows duty-cycled scanning between transmit bursts, lowering per-channel thermal rise in dense probe heads. The pipelined architecture with low-latency output enables tight beamformer delay-line calibration. Differential input mode rejects common-mode pickup from piezoelectric element crosstalk, improving image SNR.
추천
Industrial Data Acquisition Modules
For industrial sensor-acquisition modules, the THS1230IPWRG4 provides a compact 3.3 V, 12-bit, 30 MSPS ADC solution in a 28-TSSOP that can be placed alongside a microcontroller or DSP for low-density digitizer boards. The configurable input ranges allow direct connection to 4-20 mA current-loop shunts, thermocouple amplifiers, and strain-gauge bridges with appropriate front-end scaling. The -40 C to +85 C industrial temperature grade supports factory-floor and outdoor enclosures without de-rating. The integrated power-down is convenient for polled-sensor designs where the controller wakes the ADC only when needed to conserve module power budget.
추천
Battery-Powered Portable Instrumentation
In battery-powered instruments such as handheld spectrum analyzers, field data loggers, or portable medical monitors, the THS1230IPWRG4 helps minimize system power draw while maintaining measurement resolution. Operating from a single 3.3 V rail with the power-down pin asserted between sample bursts, the device can achieve an average current well below the full-speed quiescent rating. The 12-bit resolution is sufficient for general-purpose sensor metrics (voltage, current, temperature, vibration envelope) and the 28-TSSOP package keeps the analog front-end compact. Pairing the ADC with a low-power MCU for control and a serial flash for buffering creates a long-runtime, small-form-factor field instrument.
추천
추천 제품 요약
엔지니어링 참조 데이터: THS1230IPWRG4 — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | THS1230IPWR | THS1230IPWG4 | THS1215IPWG4 | THS1040CPWRG4 | THS1031IPWRG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 28-TSSOP (PW) | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same | 28-TSSOP (PW) - same |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit | 10 bit |
| Sampling Rate | 30 MSPS | 30 MSPS | 30 MSPS | 15 MSPS | 40 MSPS | 30 MSPS |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Power-Down Pin | Yes | Yes | Yes | Yes | Yes | Yes |
| RoHS Compliant | Yes (G4) | No (non-G4) | Yes (G4) | Yes (G4) | Yes (G4) | Yes (G4) |
| 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 |
| Drop-In Compatibility | N/A (reference) | Yes (100% match) | Yes (100% match) | Yes (speed differs) | Yes (resolution differs) | Yes (resolution differs) |
주요 차별점
- Lowest sampling rate drop-in alternative is family-identical (vs THS1215IPWG4)
- Higher resolution drop-in alternative within same package (vs THS1040CPWRG4)
- Same-brand family guarantees true pin-to-pin compatibility (vs Cross-brand equivalents (e.g. AD9226))
설계 노트
Estimated: at 30 MSPS full-speed, the THS1230IPWRG4 analog current draw on the 3.3 V AVDD rail is on the order of 35-50 mA typical - use a low-noise LDO (such as TPS7A4701 family) rather than a switching regulator to keep switching ripple below -80 dBc at the ADC input. Decouple AVDD with a 10 uF bulk ceramic in parallel with a 0.1 uF X7R within 3 mm of the package pin.
Route analog input traces as a differential pair with characteristic impedance of 50-100 ohm and length-match within 1 mm to maintain the SNR. Place the 28-TSSOP device with its analog pins facing the front-end amplifier and digital output pins facing the FPGA, separated by a ground moat. Avoid routing digital output (D0-D11) traces under the analog input pads.
The most frequent design pitfall is failing to bypass REFT and REFB reference pins adequately - this causes spurs at the sample clock and sub-harmonics in the output spectrum. Use 0.1 uF ceramic + 10 uF tantalum/ceramic in parallel on each reference pin. Also ensure the CLK input has a clean 50% duty cycle source; excess clock jitter degrades SNR by approximately 10*log10(Fs * tjit).
For optimal 12-bit dynamic range, keep the analog input amplitude at -1 dBFS typical and avoid driving the input above the rails. Use differential input mode whenever possible - it provides roughly 3 dB better SNR than single-ended by rejecting common-mode noise from the supply. Terminate the clock line with a series 33 ohm resistor near the ADC to dampen overshoot and ringing on fast 30 MSPS edges.
규정 준수 정보
RoHS compliance indicated by G4 suffix in part number. Reach and conflict-mineral compliance per TI standard product declarations. AEC-Q100 not applicable - this is an industrial-grade ADC, not an automotive-qualified part.
