THS1040CPWRG4 - 10-Bit 40 MSPS Low-Power ADC | Texas Instruments
MPN: THS1040CPWRG4 ✓ פעילTHS1040CPWRG4 סקירה
An ADC is a data-conversion integrated circuit that samples continuous analog signals and quantizes each sample into a discrete digital code. Pipeline ADCs such as the THS1040CPWRG4 use multiple low-resolution stages with inter-stage digital correction to achieve high sampling rates at moderate power consumption. Within the broader taxonomy, this part is a successive-stage pipeline ADC, sits under high-speed ADC, then data converter, then signal chain, then power management/data-conversion IC. Single 3 V supply, 10-bit resolution, and 40 MSPS conversion rate make this ADC a mid-resolution, mid-throughput solution for embedded DSP and FPGA interfaces.
Key features include ±0.45 LSB typical differential nonlinearity (DNL), 60 dB signal-to-noise ratio at 4.8 MHz input, 72 dB spurious-free dynamic range, and configurable input functions. The pipelined architecture with digital error correction delivers low latency relative to sigma-delta converters while drawing milliwatts of power from a single 3 V rail, making the part well-suited for portable and thermally constrained designs.
Architecture depth: the THS1040 family uses a multi-stage switched-capacitor pipeline, an internal bandgap-derived reference, and CMOS input comparators. The configurable reference allows the designer to scale the analog input range between 1 Vp-p and 2 Vp-p full-scale, easing interface to common op-amp output levels and to differential drivers. Internal voltage reference can be set for 1 Vp-p or 2 Vp-p full-scale input. The PW suffix denotes the tape-and-reel TSSOP-28 option, and the G4 suffix denotes a Pb-free green packaging finish compliant with RoHS requirements.
Typical applications include digital still cameras, video capture front-ends, CCD digitizers, ultrasound imaging receivers, set-top box video digitizers, and digital communications IF sampling. Single 3 V supply simplifies power-tree design for battery-powered portable instruments where the ADC sits adjacent to a low-power DSP or FPGA fabric.
Design consideration: place the analog and digital decoupling capacitors as close as possible to the AVDD and DVDD pins respectively, and use a ground plane to isolate the analog input traces from the digital output bus. The internal reference selection bit trades reference stability against full-scale input range, and designers must select the configuration best matching the upstream op-amp drive capability.
This page synthesizes distributor pricing, drop-in same-package and cross-package alternatives, parametric comparison tables, and practical PCB design notes not found in the manufacturer datasheet, all anchored to verified web data as of 2026-10-15.
חלופות תחליף ישיר עבור THS1040CPWRG4 — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם THS1040CPWRG4 (אותו גורם צורה וטביעת רגל) — שונים ב Package, RoHS Status, Input Type, Number of Channels, Architecture.
THS1041CPWRG4
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
THS1040CPWR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
THS1040IPWR
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
THS1031IPWRG4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←THS1031IPWG4
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←THS1040CPWRG4 דירוגים מרביים ומאפיינים חשמליים
| רזולוציה | 10 bit |
| Number of Channels | 1 Input |
| קצב דגימה | 40 MSPS |
| Architecture | Pipelined |
| Analog Supply Voltage | 3 V |
| Digital Supply Voltage | 3 V |
| Analog Input Configuration | Single-ended or Differential |
| Differential Nonlinearity (DNL) | ±0.45 LSB (typ) |
| Signal-to-Noise Ratio (SNR) | 60 dB typ at 4.8 MHz |
| Spurious-Free Dynamic Range (SFDR) | 72 dB |
| Internal Voltage Reference | Adjustable, supports 1 Vp-p and 2 Vp-p full-scale |
| Input Range | 1 Vp-p to 2 Vp-p (configurable) |
| טווח טמפרטורת פעולה | 0C to +70C (commercial grade) |
| מארז | 28-pin TSSOP (PW) |
| סוג הרכבה | Surface Mount |
| סטטוס RoHS | Compliant (Pb-free G4 finish) |
| רמת MSL | 2 (per TI standard) |
תצורת פינים של THS1040CPWRG4
| פין 1 | AVDD — Analog 3 V supply |
| פין 2 | AIN+ — Analog input (positive) |
| פין 3 | AIN- — Analog input (negative) |
| פין 4 | REFT — Top reference decoupling |
| פין 5 | REFB — Bottom reference decoupling |
| פין 6 | REFCM — Common-mode reference |
| פין 7 | REFOUT — Reference output |
| פין 8 | REFIN — Reference input |
| פין 9 | VREF — Voltage reference select |
| פין 10 | PD — Power-down control |
| פין 11 | OE — Output enable |
| פין 12 | CLK — Clock input |
| פין 13 | DVDD — Digital 3 V supply |
| פין 14 | DGND — Digital ground |
| פין 15 | D9 — Digital output bit 9 (MSB) |
| פין 16 | D8 — Digital output bit 8 |
| פין 17 | D7 — Digital output bit 7 |
| פין 18 | D6 — Digital output bit 6 |
| פין 19 | D5 — Digital output bit 5 |
| פין 20 | D4 — Digital output bit 4 |
| פין 21 | D3 — Digital output bit 3 |
| פין 22 | D2 — Digital output bit 2 |
| פין 23 | D1 — Digital output bit 1 |
| פין 24 | D0 — Digital output bit 0 (LSB) |
| פין 25 | NC — Not connected (per datasheet) |
| פין 26 | NC — Not connected (per datasheet) |
| פין 27 | AGND — Analog ground |
| פין 28 | AGND — Analog ground |
יישומים טיפוסיים
THS1040CPWRG4 מתאים עבור 6 יישוםs: Digital Still Camera Image Digitizer, CCD Imaging Front-End, Set-Top Box Video Digitizer, Digital Communications IF Sampling, Ultrasound Imaging Receiver, Portable Test and Measurement Instrumentation.
Digital Still Camera Image Digitizer
The THS1040CPWRG4 fits digital still camera image digitization thanks to its 40 MSPS sampling rate, which exceeds typical CCD horizontal line rates of 20-30 MSPS, and its single 3 V supply that simplifies camera power-rail design. The 10-bit resolution matches the dynamic range of consumer CCD imagers, and the 60 dB SNR at 4.8 MHz input preserves image detail in mid-range pixel clock frequencies. Placed between the CCD output amplifier and the image DSP, the ADC digitizes analog pixel streams into 10-bit parallel data using a pixel-rate clock; unlike sigma-delta converters, the pipelined architecture adds only a few clock cycles of latency, which is critical for real-time preview and burst-mode capture pipelines in compact camera designs.
מומלץ
CCD Imaging Front-End
The THS1040CPWRG4 is well-suited for CCD imaging front-end applications where analog pixel streams must be digitized at rates up to 40 MSPS with 10-bit precision. Its configurable 1 Vp-p or 2 Vp-p full-scale input range matches typical CCD output amplitudes, and the single 3 V supply eases integration into compact imaging modules. The pipelined architecture delivers sub-microsecond conversion latency versus sigma-delta alternatives that would require decimation filters. Used between the CCD analog front-end amplifier and an FPGA or DSP processor, the ADC samples each pixel at the pixel-clock rate and presents the 10-bit digital word on the parallel bus; designers should expect approximately 50 mW power consumption at full 40 MSPS operation from the 3 V supply.
מומלץ
Set-Top Box Video Digitizer
Set-top box video digitizers benefit from the THS1040CPWRG4's 40 MSPS sampling rate, which exceeds the 27 MHz pixel rate of standard-definition video and provides headroom for higher-resolution video formats. The 10-bit resolution delivers studio-quality video capture with sufficient dynamic range for Y/C separation and color decoding. Single 3 V operation simplifies power-tree design in fanless set-top enclosures with strict thermal budgets. The ADC digitizes the analog video input after anti-alias filtering and presents composite digital video on the 10-bit parallel bus; the pipelined architecture adds only 2-3 clock cycles of latency, which is acceptable for real-time video processing pipelines used in MPEG encoders.
מומלץ
Digital Communications IF Sampling
IF sampling in digital communications receivers leverages the THS1040CPWRG4's 40 MSPS rate and 60 dB SNR at 4.8 MHz to digitize intermediate-frequency signals from a superheterodyne downconverter. The 72 dB SFDR ensures spurious content from neighboring channels stays below detection thresholds in narrow-band receivers. Single 3 V supply simplifies integration into portable and battery-powered radio designs. The ADC samples the IF signal at 40 MSPS and presents a 10-bit digital stream to a digital downconverter implemented in an FPGA; the pipelined architecture introduces deterministic latency that simplifies digital channelizer synchronization across multiple receiver channels.
מומלץ
Ultrasound Imaging Receiver
Ultrasound imaging receivers use the THS1040CPWRG4 to digitize analog echo signals at rates up to 40 MSPS with 10-bit resolution, matching the bandwidth of mid-frequency ultrasound probes (5-10 MHz). The single 3 V supply reduces heat dissipation in handheld and cart-based ultrasound systems where patient safety and operator comfort require low component temperatures. The configurable input range matches typical LNA output levels in ultrasound front-ends. Placed after the time-gain-compensation (TGC) amplifier and before the beamforming DSP, the ADC converts each scan line into a digital stream at the ultrasound pulser repetition rate; the pipelined latency is well within the real-time beamforming budget for medical imaging applications.
מומלץ
Portable Test and Measurement Instrumentation
Portable test and measurement instruments benefit from the THS1040CPWRG4's low-power single 3 V supply operation, 40 MSPS rate, and 10-bit resolution that suits digitizing oscilloscope channels and data acquisition inputs in handheld meters. The 60 dB SNR preserves measurement accuracy for moderate-precision instruments, and the small TSSOP-28 package fits densely populated handheld PCBs. Used as the primary ADC in a portable oscilloscope or spectrum analyzer, the part digitizes the conditioned analog input at up to 40 MSPS and presents the data to a microcontroller or DSP for FFT and display processing; the G4 Pb-free finish ensures compliance with portable consumer electronics environmental regulations.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור THS1040CPWRG4 — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | THS1041CPWRG4 | THS1040CPWR | THS1040IPWR | THS1031IPWRG4 | THS1031IPWG4 |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | TSSOP-28 (PW) | TSSOP-28 (PW) - same | TSSOP-28 (PW) - same | TSSOP-28 (PW) - same | TSSOP-28 (PW) - same | TSSOP-28 (PW) - same |
| Sampling Rate | 40 MSPS | 60 MSPS | 40 MSPS | 40 MSPS | 30 MSPS | 30 MSPS |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit | 10 bit |
| Supply Voltage | 3 V analog / 3 V digital | 3 V analog / 3 V digital | 3 V analog / 3 V digital | 3 V analog / 3 V digital | 3 V analog / 3 V digital | 3 V analog / 3 V digital |
| Temperature Range | 0C to +70C (commercial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Pb-Free Finish | Yes (G4 suffix) | Yes (G4 suffix) | Non-G4 finish | Non-G4 finish | Yes (G4 suffix) | Yes (G4 suffix) |
| Input Configuration | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential | Single-ended or differential |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined | Pipelined |
| Approximate Unit Price (qty 1) | $6.50 | $7.20 | $6.30 | $8.50 | $5.80 | $5.60 |
מבדילים עיקריים
- Single 3 V supply operation with low power (לעומתIndustry typical 5 V ADCs)
- Configurable input range with built-in reference (לעומתExternal-reference-only ADCs)
- Same-package upgrade path to 60 MSPS (לעומתTHS1031IPWRG4 (30 MSPS lower tier))
- Pb-free G4 finish for RoHS compliance (לעומתLegacy Pb-finish ADC versions)
הערות תכנון
The THS1040CPWRG4 requires a low-noise 3 V analog supply (AVDD) and a separate 3 V digital supply (DVDD). Decouple each supply pin with a 10 uF tantalum bulk capacitor plus a 0.1 uF ceramic capacitor placed within 5 mm of the supply pins. Use separate analog and digital ground planes connected at a single point near the ADC to prevent digital switching noise from coupling into the analog input. The PD (power-down) pin reduces supply current to a few hundred microamps when the ADC is not in use, valuable in battery-powered designs.
Place the analog input traces (AIN+, AIN-) on the top layer with a contiguous ground reference plane underneath to maintain 50-ohm characteristic impedance and minimize crosstalk. Keep the digital output bus traces (D0-D9) routed away from the analog input traces to prevent digital noise coupling. Use matched trace lengths on the clock input to avoid sampling jitter, and place the clock driver within 25 mm of the CLK pin. The reference decoupling capacitors on REFT, REFB, REFCM must be placed within 3 mm of their respective pins with low-ESR ceramic types.
Drive the analog input differentially for best SFDR performance: a differential driver such as the THS4503 or THS4511 will deliver 3-6 dB better SFDR than single-ended drive at the same clock rate. Configure the input full-scale range via the VREF pin: 1 Vp-p for low-noise operation, 2 Vp-p for maximum dynamic range. Maintain clock duty cycle at 50% +/- 5% to avoid spurious harmonics at odd multiples of the sample rate. The OE (output enable) pin allows tri-state control of the digital output bus, useful in multi-ADC parallel configurations.
מידע על תאימות
G4 suffix denotes Pb-free matte-tin finish compliant with RoHS directive. Commercial temperature grade (0C to +70C). AEC-Q100 not applicable for commercial-grade ADC.
