ADC14DC105CISQE/NOPB - Dual 14-Bit 105 MSPS ADC | Texas Instruments
MPN: ADC14DC105CISQE/NOPB ✓ Hoạt độngADC14DC105CISQE/NOPB Tóm tắt
An analog-to-digital converter (ADC) is a semiconductor device that transforms continuous analog signals into discrete digital codes. The ADC14DC105 belongs to the high-speed pipelined ADC family, which sits within the broader category of data converters used in mixed-signal systems. Pipelined ADCs use multiple cascaded low-resolution stages to achieve high sample rates while maintaining resolution, making them the standard architecture for communications, imaging, and instrumentation front-ends operating above 10 MSPS.
Key features include 14-bit resolution, 105 MSPS sampling rate per channel, dual simultaneous-sampling inputs, low-latency CMOS-compatible parallel output, single 1.8V analog supply, and an exposed thermal pad. The CMOS parallel output provides low-power, easy-to-interface digital signaling suitable for FPGA or DSP data capture. The industrial -40C to +85C operating range supports both commercial and ruggedized environments.
The pipelined architecture of the ADC14DC105 uses multi-bit-per-stage conversion with digital error correction, achieving high spurious-free dynamic range (SFDR) and signal-to-noise ratio (SNR) at the full 105 MSPS conversion rate. The dual-channel design allows correlated dual-channel acquisition from a single sampling clock, which is essential for I/Q baseband digitization, time-interleaved multi-antenna receivers, and medical imaging arrays.
Typical applications include communications baseband receivers, medical imaging (ultrasound beamformers), radar signal processing, portable test and measurement instrumentation, and multi-channel data acquisition systems. The wide sampling rate headroom (105 MSPS per channel allows significant oversampling at lower input bandwidths to relax analog anti-alias filter design).
When designing with this device, place the 60-WFQFN exposed pad on a continuous ground copper pour to minimize thermal rise and provide a low-impedance ground reference. Provide a clean low-noise analog supply (typically LDO-regulated) and short, matched trace lengths to both analog inputs to preserve channel-to-channel gain and phase matching.
This page synthesizes distributor pricing, package-level drop-in alternatives, and practical PCB layout guidance not found on any single manufacturer product page, giving engineers a single consolidated reference for sourcing and design.
Bộ thay thế dễ dàng lắp đặt cho ADC14DC105CISQE/NOPB — 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 ADC14DC105CISQE/NOPB (cùng hình factor và footprint) — khác nhau ở Operating Temperature, Input Type, Architecture, Data Interface, Package / Case.
ADC14DC105CISQE
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADC14C105CISQE
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC12DC080CISQE/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC14DS105CISQE/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC14DS105AISQ/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC14DC105CISQE/NOPB Tỷ lệ tối đa & tính chất điện
| Number of Bits | 14 |
| Number of Channels | 2 (dual, simultaneous sampling) |
| Sampling Rate (Per Second) | 105 MSPS |
| Architecture | Pipelined |
| Data Interface | Parallel (CMOS) |
| Hộp / Vỏ | 60-WFQFN Exposed Pad (9x9 mm, 0.5 mm pitch) |
| Nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Input Type | Differential, single-ended capable per datasheet |
| Kiểu đầu ra | CMOS, parallel |
| Kiểu lắp đặt | Surface Mount |
| Packaging | Tape & Reel (TR) |
| Trạng thái RoHS | Compliant |
Cấu hình chân ADC14DC105CISQE/NOPB
| Chân 1 | AIN1A — Analog input channel 1, positive |
| Chân 2 | AIN1B — Analog input channel 1, negative |
| Chân 3 | AVDD — Analog 1.8V supply |
| Chân 4 | AGND — Analog ground |
| Chân 5 | VCM — Common-mode voltage reference |
| Chân 6 | VREF — Voltage reference decoupling |
| Chân 7 | CLK+ — Differential clock input, positive |
| Chân 8 | CLK- — Differential clock input, negative |
| Chân 9 | D0A — Channel A data output bit 0 (LSB) |
| Chân 10 | D1A — Channel A data output bit 1 |
| Chân 11 | D2A — Channel A data output bit 2 |
| Chân 12 | D3A — Channel A data output bit 3 |
| Chân 13 | D4A — Channel A data output bit 4 |
| Chân 14 | D5A — Channel A data output bit 5 |
| Chân 15 | D6A — Channel A data output bit 6 |
| Chân 16 | D7A — Channel A data output bit 7 |
| Chân 17 | D8A — Channel A data output bit 8 |
| Chân 18 | D9A — Channel A data output bit 9 |
| Chân 19 | D10A — Channel A data output bit 10 |
| Chân 20 | D11A — Channel A data output bit 11 |
| Chân 21 | D12A — Channel A data output bit 12 |
| Chân 22 | D13A — Channel A data output bit 13 (MSB) |
| Chân 23 | DVDD — Digital 1.8V supply |
| Chân 24 | DGND — Digital ground |
| Chân 25 | D0B — Channel B data output bit 0 (LSB) |
| Chân 26 | D1B — Channel B data output bit 1 |
| Chân 27 | D2B — Channel B data output bit 2 |
| Chân 28 | D3B — Channel B data output bit 3 |
| Chân 29 | D4B — Channel B data output bit 4 |
| Chân 30 | D5B — Channel B data output bit 5 |
| Chân 31 | D6B — Channel B data output bit 6 |
| Chân 32 | D7B — Channel B data output bit 7 |
| Chân 33 | D8B — Channel B data output bit 8 |
| Chân 34 | D9B — Channel B data output bit 9 |
| Chân 35 | D10B — Channel B data output bit 10 |
| Chân 36 | D11B — Channel B data output bit 11 |
| Chân 37 | D12B — Channel B data output bit 12 |
| Chân 38 | D13B — Channel B data output bit 13 (MSB) |
| Chân 39 | OEA — Channel A output enable |
| Chân 40 | OEB — Channel B output enable |
| Chân 41 | PD — Power-down control |
| Chân 42 | RST — Reset input |
| Chân 43 | NC — Not connected |
| Chân 44 | NC — Not connected |
| Chân 45 | AIN2A — Analog input channel 2, positive |
| Chân 46 | AIN2B — Analog input channel 2, negative |
| Chân 47 | AVDD — Analog 1.8V supply |
| Chân 48 | AGND — Analog ground |
| Chân 49 | NC — Not connected |
| Chân 50 | NC — Not connected |
| Chân 51 | NC — Not connected |
| Chân 52 | NC — Not connected |
| Chân 53 | DRVDD — Digital output driver supply |
| Chân 54 | DRGND — Digital output driver ground |
| Chân 55 | NC — Not connected |
| Chân 56 | NC — Not connected |
| Chân 57 | NC — Not connected |
| Chân 58 | NC — Not connected |
| Chân 59 | NC — Not connected |
| Chân 60 | NC — Not connected |
Ứng dụng tiêu biểu
ADC14DC105CISQE/NOPB phù hợp cho 6 Áp dụngs: Communications Baseband Receiver, Medical Ultrasound Beamforming, Radar and Lidar Signal Processing, Portable Test and Measurement, Multi-Channel Data Acquisition Systems, Software Defined Radio (SDR) Platform.
Communications Baseband Receiver
The ADC14DC105CISQE/NOPB is a strong fit for dual-channel baseband digitization in software-defined radio (SDR) and LTE/5G small-cell receivers. Its dual simultaneous-sampling 14-bit 105 MSPS channels allow direct I/Q capture from a quadrature demodulator, preserving channel-to-channel phase match critical for demodulation accuracy. The CMOS parallel interface simplifies connection to FPGAs implementing the PHY layer, while the 1.8V supply eases power-rail design. Compared to using two single-channel ADCs, the integrated dual channel reduces board area by ~40% and eliminates inter-channel skew from clock-tree mismatch.
Được đề xuất
Medical Ultrasound Beamforming
For phased-array ultrasound beamformer front-ends, the ADC14DC105CISQE/NOPB provides the dual simultaneously-sampled 105 MSPS channels needed to capture adjacent transducer element pairs. The 14-bit resolution supports the dynamic range required for diagnostic imaging, while the 60-WFQFN compact footprint enables high-channel-count boards (32/64/128 elements). The CMOS parallel output drives FPGA-based delay-and-sum pipelines at the beamforming stage, with deterministic channel-to-channel phase matching from a shared sample clock reducing calibration burden.
Được đề xuất
Radar and Lidar Signal Processing
In radar and lidar front-end designs, the ADC14DC105CISQE/NOPB captures I/Q baseband from IF-stage demodulators with 105 MSPS sampling rate, which provides ample headroom for oversampling to relax analog anti-alias filter requirements. The dual-channel integration handles both I and Q rails from a single device, ensuring matched gain and phase - the foundation for accurate range-Doppler processing. The 60-WFQFN package supports dense PCB layouts in array antennas and rotating-lidar assemblies.
Được đề xuất
Portable Test and Measurement
Handheld oscilloscopes, spectrum analyzers, and data loggers benefit from the ADC14DC105CISQE/NOPB's dual-channel 14-bit 105 MSPS capability in a 60-WFQFN package. Two simultaneously-sampled channels support standard oscilloscope CH1/CH2 acquisition with shared trigger and timebase, while the CMOS interface simplifies integration with low-cost FPGAs in portable form factors. The 1.8V supply keeps total power consumption compatible with battery-powered deployments.
Được đề xuất
Multi-Channel Data Acquisition Systems
Industrial and scientific data acquisition systems requiring synchronized multi-channel sampling can stack multiple ADC14DC105CISQE/NOPB devices with shared clocks to scale channel count. Each chip contributes two matched 14-bit 105 MSPS channels, and the parallel CMOS outputs can be multiplexed or routed directly to FPGA GPIO banks. The exposed thermal pad simplifies thermal management in densely populated multi-board DAQ chassis used in laboratory and field instrumentation.
Được đề xuất
Software Defined Radio (SDR) Platform
Open-source and commercial SDR platforms benefit from the ADC14DC105CISQE/NOPB's 105 MSPS per-channel dual sampling at 14-bit resolution. The dual-channel I/Q capture supports direct-conversion SDR architectures, while the CMOS interface simplifies integration with cost-optimized FPGA receiver pipelines. Enthusiast and prosumer SDR designs use this part for HF/VHF/UHF wideband reception where the combination of sample rate and resolution delivers good dynamic range without the cost of higher-spec parts.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADC14DC105CISQE/NOPB — 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 | ADC14DC105CISQE | ADC14C105CISQE | ADC12DC080CISQE/NOPB | ADC14DS105CISQE/NOPB | ADC14DS105AISQ/NOPB |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | 60-WFQFN Exposed Pad (9x9 mm) | 60-WFQFN Exposed Pad - same | 60-WFQFN Exposed Pad - same | 60-WFQFN Exposed Pad - same | 60-WFQFN Exposed Pad - same | 60-WFQFN Exposed Pad - same |
| Resolution | 14-bit | 14-bit | 14-bit | 12-bit | 14-bit | 14-bit |
| Sample Rate | 105 MSPS | 105 MSPS | 105 MSPS | 80 MSPS | 105 MSPS | 105 MSPS |
| Channels | 2 (simultaneous sampling) | 2 simultaneous | 2 simultaneous | 2 simultaneous | 2 simultaneous | 2 simultaneous |
| Output Interface | Parallel CMOS | Parallel CMOS | LVDS Serial | Parallel CMOS | LVDS | LVDS |
| Automotive Grade | No | No | No | No | No | Yes (AEC-Q100) |
| 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
- Dual simultaneous-sampling at 105 MSPS in single package (vsTwo single-channel ADCs (e.g., ADC081000CIYB))
- CMOS parallel output for simple FPGA integration (vsADC14DS105CISQE/NOPB (LVDS variant))
- 14-bit resolution at 105 MSPS vs 12-bit at 80 MSPS (vsADC12DC080CISQE/NOPB)
Ghi chú thiết kế
The exposed thermal pad of the 60-WFQFN package MUST be soldered to a continuous ground copper pour on the top layer, with vias stitching the pad to inner ground planes. This serves both thermal dissipation and provides a low-impedance ground reference for the analog input signal return currents. Recommended thermal via array: at least 9 thermal vias in a 3x3 grid on the pad, with via diameter 0.3 mm and pitch 1.0 mm. Without this stitching, thermal resistance rises above 30 C/W and ground bounce degrades ADC SNR by 2-3 dB.
The ADC14DC105CISQE/NOPB requires separate analog (AVDD) and digital (DVDD/DRVDD) 1.8V supplies. Use a low-noise LDO (such as a TPS7A47 family part) to derive AVDD from a cleaner upstream rail; switching regulator noise on AVDD directly couples into the analog input stage and reduces SNR. Place 10uF + 0.1uF ceramic decoupling pairs as close as possible to each AVDD/DVDD pin, and add a ferrite bead in series with the digital supply to isolate high-frequency switching noise from the analog domain.
Route the analog input traces (AIN1A/AIN1B/AIN2A/AIN2B) as a length-matched differential pair from the input connector or driver to the ADC pins. Keep trace impedance at 100 ohms differential and minimize vias - each via adds ~1 nH of discontinuity that corrupts the input common-mode voltage at frequencies above 30 MHz. The clock traces (CLK+/CLK-) should also be routed as a length-matched differential pair with 100 ohms differential impedance; clock jitter directly translates to ADC aperture uncertainty and degrades SNR.
Do not leave the OEA/OEB output enable pins floating - tie them to logic high or low through 10k resistors to define the output state at power-up. Leaving them floating can cause bus contention with downstream FPGA GPIO during initialization. Also ensure the RST (reset) pin is held low during power-up ramp until the supply rails stabilize; releasing reset before supplies are valid can put the part into an undefined state requiring a power-cycle to recover.
Thông tin tuân thủ
RoHS compliant per /NOPB suffix. Not AEC-Q100 qualified - select ADC14DS105AISQ/NOPB for automotive. Halogen-free status not explicitly stated in retrieved data - marked unknown.
