THS1230CPWRG4 - 12-Bit 30MSPS Low-Power ADC | Texas Instruments
MPN: THS1230CPWRG4 ✓ Hoạt độngTHS1230CPWRG4 Tóm tắt
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous-time analog voltages into discrete digital codes at a defined sampling rate. ADCs sit at the boundary between the analog front end (sensors, amplifiers, filters) and the digital back end (DSPs, FPGAs, microcontrollers). Within the data-converter hierarchy, the THS1230 is a successive-approximation / pipelined hybrid, belonging to the broader family of low-power, medium-speed precision converters used in industrial, instrumentation, and communications applications.
Key features include configurable analog inputs (single-ended, single-ended with offset, or fully differential), 3.3 V single-supply operation, an internal reference option, and a parallel digital output interface. The PowerPAD TSSOP-28 package provides a low thermal-resistance path (~30 C/W) suitable for industrial temperature operation. The device's low power dissipation makes it suitable for portable or thermally-constrained designs where a higher-speed pipelined ADC would generate excessive heat.
Architecture-wise, the THS1230 uses a pipelined core with digital error correction, allowing 30 MSPS operation while keeping analog input bandwidth wide enough for IF-sampling applications. The integrated input multiplexer and reference buffer reduce external component count, simplifying board layout and BOM cost.
Typical applications include CCD imaging digitizers, baseband processing in wireless receivers, portable instrumentation, ultrasonic medical imaging front ends, and general-purpose data acquisition. The 28-pin TSSOP footprint is industry-standard and pin-compatible with several other TI 12-bit ADC products.
When designing with this device, ensure the analog input common-mode voltage stays within the input range specified in the datasheet and provide adequate decoupling on AVDD and DVDD rails to achieve datasheet SNR. The PowerPAD must be soldered to a grounded copper pour to meet thermal specifications.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho THS1230CPWRG4 — 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 THS1230CPWRG4 (cùng hình factor và footprint) — khác nhau ở Architecture, Operating Temperature, Package, Resolution, Sampling Rate.
THS1230IPWG4
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS1230CPWR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
THS1215IPWG4
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →THS1230CPWRG4 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bits |
| Tỷ lệ lấy mẫu | 30 MSPS |
| Architecture | Pipelined CMOS ADC |
| Điện áp cung cấp | 3.3 V (single supply) |
| Number of Channels | 1 |
| Input Configuration | Single-ended / Single-ended with offset / Differential |
| Digital Interface | Parallel |
| Hộp | TSSOP-28 (PW) with PowerPAD |
| Nhiệt độ hoạt động | 0C to +70C (commercial grade) |
| Power-down Mode | Yes |
| Internal Reference | Yes |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
Cấu hình chân THS1230CPWRG4
| Chân 1 | AVDD — Analog 3.3V supply |
| Chân 2 | AGND — Analog ground |
| Chân 3 | VIN+ — Analog input positive |
| Chân 4 | VIN- — Analog input negative |
| Chân 5 | VREF — Reference voltage |
| Chân 6 | MODE — Input mode select |
| Chân 7 | PD — Power-down input |
| Chân 8 | CLK — Clock input |
| Chân 9 | DGND — Digital ground |
| Chân 10 | DVDD — Digital 3.3V supply |
| Chân 11 | D0 — Data output bit 0 (LSB) |
| Chân 12 | D1 — Data output bit 1 |
| Chân 13 | D2 — Data output bit 2 |
| Chân 14 | D3 — Data output bit 3 |
| Chân 15 | D4 — Data output bit 4 |
| Chân 16 | D5 — Data output bit 5 |
| Chân 17 | D6 — Data output bit 6 |
| Chân 18 | D7 — Data output bit 7 |
| Chân 19 | D8 — Data output bit 8 |
| Chân 20 | D9 — Data output bit 9 |
| Chân 21 | D10 — Data output bit 10 |
| Chân 22 | D11 — Data output bit 11 (MSB) |
| Chân 23 | DRDY — Data ready output |
| Chân 24 | NC — Not connected |
| Chân 25 | NC — Not connected |
| Chân 26 | AGND — Analog ground |
| Chân 27 | AVDD — Analog 3.3V supply |
| Chân 28 | PowerPAD — Thermal pad, connect to AGND |
Ứng dụng tiêu biểu
THS1230CPWRG4 phù hợp cho 6 Áp dụngs: Ultrasonic Medical Imaging Front End, CCD Imaging Digitizer, Wireless Baseband Receiver, Portable Data Acquisition Module, General-Purpose Industrial Instrumentation, Communications Test Equipment.
Ultrasonic Medical Imaging Front End
The THS1230CPWRG4's 12-bit resolution at 30 MSPS matches the channel bandwidth of ultrasound probe receive paths, while its differential input mode simplifies interface to the transducer pre-amplifier. Low power dissipation on a single 3.3 V supply keeps per-channel heat low in multi-element probes. The integrated input multiplexer reduces external component count, lowering BOM cost for cart-based and portable ultrasound systems where 30 MSPS per channel is sufficient for the required image depth.
Được đề xuất
CCD Imaging Digitizer
The THS1230CPWRG4 digitizes the analog output of CCD line-scan or area-scan image sensors at pixel clock rates up to 30 MHz, providing 12-bit grayscale depth for machine vision and document scanning. The single-ended input mode accepts direct coupling from the CCD output buffer, and the parallel digital output bus feeds an FPGA or DSP for further image processing. The PowerPAD TSSOP-28 footprint fits compact camera-head boards where thermal management is critical.
Được đề xuất
Wireless Baseband Receiver
In baseband processing for narrowband wireless receivers, the THS1230CPWRG4 digitizes the I/Q baseband output at sample rates up to 30 MSPS, supporting channel bandwidths common in proprietary ISM-band radios and legacy cellular systems. The differential input mode rejects common-mode noise from the analog front end, and the integrated reference reduces external component count. Low power operation on 3.3 V simplifies compliance with portable device battery-life budgets.
Được đề xuất
Portable Data Acquisition Module
The THS1230CPWRG4's power-down mode and low supply current make it ideal for handheld or battery-powered data loggers that capture sensor waveforms at sample rates up to 30 MSPS. The single-ended with offset input mode accommodates bipolar sensor signals without external level shifting, reducing board area. The 28-pin TSSOP with PowerPAD provides adequate thermal margin in sealed enclosures where convective cooling is limited.
Được đề xuất
General-Purpose Industrial Instrumentation
The THS1230CPWRG4 serves as the core digitizer in industrial oscilloscopes, spectrum analyzers, and process-control equipment where 30 MSPS and 12-bit resolution meet measurement requirements. Configurable input modes allow direct connection to single-ended or differential transducer outputs. The parallel output bus streams directly to an FPGA or DSP for FFT, filtering, or display rendering. Commercial temperature grade is sufficient for indoor industrial environments.
Được đề xuất
Communications Test Equipment
In bench-top communications testers and protocol analyzers, the THS1230CPWRG4 digitizes modulated signals up to 30 MSPS for demodulation and eye-diagram analysis. The parallel digital output enables real-time capture to memory, supporting compliance testing of low-speed serial protocols and baseband signaling. Power-down mode helps meet energy-efficiency requirements in lab equipment that spends significant idle time between measurements.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho THS1230CPWRG4 — 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 | THS1230IPWG4 | THS1230CPWR | THS1215IPWG4 |
|---|---|---|---|---|
| Package | TSSOP-28 (PW) with PowerPAD | TSSOP-28 (PW) with PowerPAD - same | TSSOP-28 (PW) with PowerPAD - same | TSSOP-28 (PW) with PowerPAD - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits |
| Sampling Rate | 30 MSPS | 30 MSPS | 30 MSPS | 5 MSPS |
| Operating Temperature | 0C to +70C | -40C to +85C | 0C to +70C | -40C to +85C |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Number of Channels | 1 | 1 | 1 | 1 |
| Power-down Mode | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Industrial-grade drop-in replacement available (vsTHS1230IPWG4)
- Higher sample rate than THS1215 family (vsTHS1215IPWG4)
- Compact TSSOP-28 with PowerPAD (vsTHS1230CDWR (SOIC-28))
Ghi chú thiết kế
Separate analog and digital ground planes are critical for the THS1230CPWRG4 to achieve datasheet SNR. Route AGND and DGND independently to a single star-point connection near the PowerPAD. Place 0.1 uF ceramic decoupling capacitors as close as possible to each AVDD and DVDD pin, with a 10 uF bulk tantalum or ceramic on each supply rail. Keep analog input traces short and shielded by surrounding ground pours.
The PowerPAD on the 28-pin TSSOP must be soldered to a grounded copper pour of at least 1 square inch to meet the datasheet thermal resistance of approximately 30 C/W. Without proper PowerPAD soldering, junction temperature can exceed rated limits during continuous 30 MSPS operation. Use multiple thermal vias under the pad to conduct heat into inner PCB ground planes.
Drive the CLK input with a low-jitter clock source; aperture jitter directly degrades SNR at high input frequencies. The datasheet recommends keeping clock jitter below 5 ps RMS for IF-sampling applications. Use a clock buffer or dedicated oscillator rather than distributing a digital clock through a noisy FPGA pin. Maintain 50 ohm controlled impedance on the CLK trace if routing is longer than a few millimeters.
Do not leave the MODE pin floating; tie it to a defined logic level via a pull-up or pull-down resistor to select the desired input configuration reliably. Failing to drive MODE properly can cause the input multiplexer to enter an undefined state. Similarly, the PD pin must be tied to logic low if power-down is not used, otherwise the device will not sample on power-up.
Estimated: At 30 MSPS and 3.3 V supply, typical supply current is in the 30-50 mA range, yielding approximately 100-170 mW total power. Add a 10% margin for design verification. The integrated power-down mode reduces current to a few mA when idle, supporting battery-powered applications where the ADC is duty-cycled to capture short bursts of sensor data.
Thông tin tuân thủ
RoHS compliant Pb-free (G4 suffix) per Texas Instruments product marking. Commercial temperature grade; not AEC-Q100 qualified.
