ADC12DL040CIVSX - Dual 12-Bit 40 MSPS ADC | Texas Instruments
MPN: ADC12DL040CIVSX ✓ Hoạt độngADC12DL040CIVSX Tóm tắt
An ADC (analog-to-digital converter) is an integrated circuit that samples continuous analog signals and converts them into discrete digital words for downstream processing by FPGAs, DSPs, or microcontrollers. A dual, pipelined ADC like the ADC12DL040 contains two interleaved sample-and-hold stages followed by multi-stage pipeline quantizers, allowing high sampling rates at moderate power consumption. ADCs sit at the boundary between the analog and digital domains in every signal acquisition system, and their noise, linearity, and spurious-free dynamic range (SFDR) directly set the achievable system-level signal-to-noise ratio.
Key differentiating specifications of the ADC12DL040 include 12-bit resolution, 40 MSPS sampling rate per channel, 3V single supply, 210 mW total power dissipation (105 mW per channel), and an integrated input sample-and-hold amplifier. The part is offered in the industrial temperature range of -40C to +85C and interfaces to digital systems through a parallel CMOS output bus, simplifying connections to standard FPGAs and DSPs. The 64-TQFP (PAG) footprint is the standard TI package for this ADC family.
The pipelined architecture allows the device to maintain low latency while delivering 12-bit resolution at 40 MSPS. Internal reference design and dual-channel synchronization simplify PCB layout and reduce the external component count, which helps designers achieve deterministic channel-to-channel sampling for I/Q signal processing and beamforming. Combined with the 3V single-rail operation, the part is well suited for portable and cost-sensitive imaging and communications systems.
Typical applications of the ADC12DL040CIVSX include IF/RF signal digitizing in communications receivers, image and video acquisition front-ends, multi-channel data acquisition systems in industrial test equipment, ultrasound and medical imaging front-ends, portable instrumentation, and dual-channel I/Q baseband sampling for software-defined radio.
When designing with this ADC, ensure that input traces are length-matched and that the analog input is driven by a low-impedance, bandwidth-appropriate amplifier. The 3V analog supply must be low-noise and well decoupled because supply noise directly couples into the converter's analog input and degrades SNR. Consult TI application notes for pipelined ADC clock distribution and input-driver selection.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes on the ADC12DL040CIVSX that are not gathered in any single manufacturer publication.
Bộ thay thế dễ dàng lắp đặt cho ADC12DL040CIVSX — 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 ADC12DL040CIVSX (cùng hình factor và footprint) — khác nhau ở Analog Supply Voltage, Number of Channels, Resolution, Architecture, Package.
ADC12DL040CIVSX/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC12DL040CIVS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC12DL040CIVS/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC12DL065CIVS/NOPB
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC10D020CIVSX/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC12DL040CIVSX Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bit |
| Number of Channels | 2 (Dual) |
| Sampling Rate (per channel) | 40 MSPS |
| Architecture | Pipelined CMOS |
| Phạm vi điện áp đầu vào | 0.0 V to 2.6 V (analog input) |
| Analog Supply Voltage | 3 V (single supply) |
| Power Dissipation | 210 mW (typical, 3V, 40 MSPS) |
| Power Consumption per Channel | 105 mW (typical) |
| Data Interface | Parallel CMOS |
| Reference Type | Internal (on-chip reference) |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Hộp / Vỏ | 64-TQFP (PAG) 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Sample-and-Hold | Yes (integrated, per channel) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân ADC12DL040CIVSX
| Chân 1 | VD — Digital supply voltage |
| Chân 2 | GND — Ground |
| Chân 3 | VD — Digital supply voltage |
| Chân 4 | GND — Ground |
| Chân 5 | INA+ — Channel A positive analog input |
| Chân 6 | INA- — Channel A negative analog input |
| Chân 7 | GND — Ground |
| Chân 8 | VA — Analog supply voltage |
| Chân 9 | GND — Ground |
| Chân 10 | VA — Analog supply voltage |
| Chân 11 | REF — Reference bypass |
| Chân 12 | GND — Ground |
| Chân 13 | REFR — Reference return |
| Chân 14 | VA — Analog supply voltage |
| Chân 15 | GND — Ground |
| Chân 16 | INB+ — Channel B positive analog input |
| Chân 17 | INB- — Channel B negative analog input |
| Chân 18 | GND — Ground |
| Chân 19 | VA — Analog supply voltage |
| Chân 20 | CLK — Clock input |
| Chân 21 | GND — Ground |
| Chân 22 | VA — Analog supply voltage |
| Chân 23 | GND — Ground |
| Chân 24 | VA — Analog supply voltage |
| Chân 25 | GND — Ground |
| Chân 26 | VD — Digital supply voltage |
| Chân 27 | GND — Ground |
| Chân 28 | OE — Output enable |
| Chân 29 | PD — Power down |
| Chân 30 | DFS — Digital output format select |
| Chân 31 | MODE — Mode control |
| Chân 32 | GND — Ground |
| Chân 33 | D0 — Data output bit 0 (LSB) |
| Chân 34 | D1 — Data output bit 1 |
| Chân 35 | D2 — Data output bit 2 |
| Chân 36 | D3 — Data output bit 3 |
| Chân 37 | D4 — Data output bit 4 |
| Chân 38 | D5 — Data output bit 5 |
| Chân 39 | D6 — Data output bit 6 |
| Chân 40 | D7 — Data output bit 7 |
| Chân 41 | GND — Ground |
| Chân 42 | D8 — Data output bit 8 |
| Chân 43 | D9 — Data output bit 9 |
| Chân 44 | D10 — Data output bit 10 |
| Chân 45 | D11 — Data output bit 11 (MSB) |
| Chân 46 | DL — Data Latch (Channel A/B indicator) |
| Chân 47 | GND — Ground |
| Chân 48 | VD — Digital supply voltage |
| Chân 49 | GND — Ground |
| Chân 50 | VD — Digital supply voltage |
| Chân 51 | GND — Ground |
| Chân 52 | VD — Digital supply voltage |
| Chân 53 | GND — Ground |
| Chân 54 | VD — Digital supply voltage |
| Chân 55 | GND — Ground |
| Chân 56 | VD — Digital supply voltage |
| Chân 57 | GND — Ground |
| Chân 58 | VD — Digital supply voltage |
| Chân 59 | GND — Ground |
| Chân 60 | VD — Digital supply voltage |
| Chân 61 | GND — Ground |
| Chân 62 | VD — Digital supply voltage |
| Chân 63 | GND — Ground |
| Chân 64 | VD — Digital supply voltage |
Ứng dụng tiêu biểu
ADC12DL040CIVSX phù hợp cho 6 Áp dụngs: Communications Receiver IF Sampling, Image and Video Acquisition Front-End, Industrial Multi-Channel Data Acquisition, Portable Test and Measurement Instrumentation, Medical Ultrasound Front-End Digitization, Software-Defined Radio Baseband Sampling.
Communications Receiver IF Sampling
The ADC12DL040CIVSX's 12-bit resolution and dual-channel 40 MSPS per channel make it a strong fit for intermediate-frequency (IF) sampling in communications receivers. Two synchronized ADC channels allow direct I/Q sampling of a baseband or low-IF signal chain, with one channel capturing the in-phase component and the other capturing the quadrature component. The internal reference and 3V single-supply operation remove the need for an external reference regulator, while 12-bit resolution provides the dynamic range required for digital demodulation of QAM, QPSK, and OFDM waveforms common in cellular base-station receivers and software-defined radio systems.
Được đề xuất
Image and Video Acquisition Front-End
The ADC12DL040CIVSX's dual 12-bit, 40 MSPS channels are designed for dual-sensor image acquisition systems where two CCD or CMOS image sensors must be sampled in parallel. Each channel provides 12-bit pixel fidelity with 40 MSPS throughput, sufficient for standard video frame rates even at multi-megapixel resolutions. The integrated sample-and-hold amplifier and on-chip reference cut down external component count, which directly translates to smaller PCB area for camera modules. Per TI datasheet figures, the 3V single-rail supply and 210 mW typical dissipation keep thermal load and battery drain within the envelope of portable digital still cameras and machine-vision front-ends.
Được đề xuất
Industrial Multi-Channel Data Acquisition
The ADC12DL040CIVSX is well matched to industrial multi-channel data acquisition systems where two analog sensors must be digitized in parallel at high sampling rate. With 40 MSPS per channel and 12-bit resolution, the converter can sample wide-bandwidth vibration, acoustic, or strain-gauge signals without aliasing, while the parallel CMOS digital output simplifies connection to an FPGA or DSP for fast Fourier transform (FFT) analysis. The part operates from -40C to +85C, meeting industrial factory-floor thermal requirements. Per TI's datasheet, the 64-TQFP (PAG) surface-mount package simplifies assembly onto multilayer industrial backplane boards.
Được đề xuất
Portable Test and Measurement Instrumentation
The ADC12DL040CIVSX suits portable test-and-measurement equipment such as handheld oscilloscopes, logic analyzers, and digital multimeters that digitize two channels at once. Each channel provides 12-bit resolution at 40 MSPS, enough to capture fast transient edges on both voltage and current probes simultaneously. Low power dissipation of approximately 210 mW total helps maximize battery runtime in field-service instruments, while the 3V single-rail supply simplifies the analog front-end. Per TI datasheet figures, the 12-bit vertical resolution combined with dual-channel sampling enables portable oscilloscopes to display both probe inputs with adequate voltage resolution without a costly external reference.
Được đề xuất
Medical Ultrasound Front-End Digitization
The ADC12DL040CIVSX can digitize ultrasonic transducer return signals at the input stage of medical imaging equipment. Each of the two ADC channels samples at 40 MSPS with 12-bit resolution, allowing time-gain-amplified RF echoes to be digitized and processed digitally to form ultrasound images. Per TI datasheet, the low-noise internal reference and pipelined architecture deliver consistent dynamic range for second-harmonic imaging. The dual-channel configuration simplifies the front-end by handling two adjacent transducer channels from the same TQFP-64 package, reducing board space and assembly cost in compact portable ultrasound carts.
Được đề xuất
Software-Defined Radio Baseband Sampling
The ADC12DL040CIVSX's dual-channel configuration is intended for I/Q baseband sampling in software-defined radios (SDR), where two ADCs simultaneously digitize the in-phase and quadrature signal paths. Each channel delivers 12-bit resolution at 40 MSPS, sufficient to capture narrowband waveforms with high dynamic range. The part's parallel CMOS output bus feeds directly into an FPGA for digital down-conversion. Per TI application notes for pipelined ADCs, the 3V single supply keeps the analog front-end simple, while the 64-TQFP footprint allows the SDR module to share its PCB layout with newer TI ADC generations, simplifying platform evolution to higher sampling rates if required.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC12DL040CIVSX — 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 | ADC12DL040CIVSX/NOPB | ADC12DL040CIVS | ADC12DL040CIVS/NOPB | ADC12DL065CIVS/NOPB | ADC10D020CIVSX/NOPB |
|---|---|---|---|---|---|---|
| Package | 64-TQFP (PAG) 10x10 mm | 64-TQFP (PAG) 10x10 mm - same | 64-TQFP (PAG) 10x10 mm - same | 64-TQFP (PAG) 10x10 mm - same | 64-TQFP (PAG) 10x10 mm - same | 64-TQFP (PAG) 10x10 mm - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit | 10 bit |
| Sampling Rate | 40 MSPS / channel | 40 MSPS / channel | 40 MSPS / channel | 40 MSPS / channel | 65 MSPS / channel | 20 MSPS / channel |
| Number of Channels | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) | 2 (Dual) |
| Supply Voltage | 3 V | 3 V | 3 V | 3 V | 3 V | 3 V |
| RoHS Compliance | Compliant (with NOPB suffix) | Compliant | Non-Compliant (legacy finish) | Compliant | Compliant | Compliant |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
Bảo phân biệt quan trọng
- Drop-in pin compatibility with RoHS-compliant NOPB variant (vsADC12DL040CIVSX/NOPB)
- Higher sampling rate option without PCB rework (vsADC12DL065CIVS/NOPB)
- Same family with 2x power reduction (vsADC12DL040CIVSX vs older ADC12DL020)
Ghi chú thiết kế
The analog inputs (INA+ / INA- and INB+ / INB-) should be routed as length-matched, impedance-controlled differential pairs, typically with 100 ohm differential impedance on stripline. Per TI's pipelined ADC PCB layout guidance, the analog ground plane must be isolated from the digital ground plane and connected only at a single point to avoid noise coupling into the analog input that degrades SNR and SFDR.
The 3V analog supply must be heavily decoupled with a low-ESR tantalum or ceramic bulk capacitor placed close to VA pins, in parallel with a 0.1 uF high-frequency ceramic bypass on every VA pin pair. Per the TI datasheet, the digital supply (VD) should be regulated separately from VA so that digital switching noise does not couple into the analog comparator reference. Recommended: place 10 uF bulk + 0.1 uF high-frequency bypass within 5 mm of each VA pin.
Drive the CLK input with a low-jitter, fast-edge clock source such as a dedicated clock generator or jitter-attenuating PLL. Per TI datasheet, clock jitter degrades ADC signal-to-noise ratio by SNR = 6.02*N + 1.76 dB - 20*log10(2*pi*f_IN*t_jitter). For 12-bit performance at 40 MSPS with 10 MHz input, the total clock jitter budget must be below 8 ps RMS. A CMOS clock driver with sub-picosecond jitter is recommended over a generic FPGA output.
Do not leave the PD (power-down) pin floating - tie it to a defined logic level through a pull-up or pull-down resistor. Per TI datasheet, leaving PD floating can result in unpredictable startup behavior in the pipelined state machine. Also ensure OE (output enable) is sequenced after the analog supply has stabilized to prevent bus contention with downstream FPGA I/O.
Thông tin tuân thủ
Per TI naming convention, the bare ADC12DL040CIVSX carries a non-RoHS finish; the RoHS-compliant variant is ADC12DL040CIVSX/NOPB (look for /NOPB suffix). Not AEC-Q100 qualified - this part is industrial-grade only.
