KAD2710C-10Q68 - 10-Bit 105MSPS Pipelined ADC | Renesas
MPN: KAD2710C-10Q68 ✓ Hoạt độngKAD2710C-10Q68 Tóm tắt
A pipelined ADC is a type of analog-to-digital converter that uses cascaded low-resolution stages (typically 1.5-bit sub-ADCs and DACs with residue amplification) to digitize an analog input at high sample rates while maintaining low power consumption. Within the broader data converter hierarchy, the KAD2710C-10Q68 sits between successive-approximation (SAR) ADCs (low speed, low latency) and flash ADCs (highest speed, lowest resolution per stage), making it ideal for intermediate-frequency sampling in communications systems, portable imaging, and industrial digitizers.
Key features of the KAD2710C-10Q68 include 55.6 dBFS SNR at fIN = 138 MHz, less than 265 mW power consumption at full sample rate, an over-range indicator for signal monitoring, and a user-selectable divide-by-2 input clock divider for flexible clock tree design. The CMOS process FemtoCharge architecture minimizes aperture jitter and allows the converter to maintain dynamic performance over the full industrial temperature range without active thermal management.
This 10-bit ADC is designed for high dynamic performance in bandwidth-limited intermediate-frequency signal chains. The single 1:1 pipelined core with digital error correction provides spurious-free dynamic range suitable for cellular base-station receiver IF stages, digital oscilloscope front ends, and radar signal processing. The exposed paddle of the 68-QFN package provides a low thermal resistance path that supports full 105 MSPS operation across the -40 C to +85 C industrial range.
Typical applications include IF sampling in wireless infrastructure, portable ultrasound beamformers, digital oscilloscope input channels, and radar return digitizers. The LVCMOS outputs interface directly with low-cost FPGAs or ASICs without requiring an external LVDS receiver, which simplifies the digital capture path for cost-sensitive designs.
When designing with this ADC, ensure the analog input is bandwidth-limited to less than half the sampling rate to satisfy the Nyquist criterion. Decouple AVDD and DVDD separately with low-ESR 0.1 uF and 10 uF capacitors placed within a few millimetres of the supply pins, and provide a clean, low-jitter clock to the CLK+ / CLK- inputs for optimum SNR performance.
This page synthesizes manufacturer datasheet excerpts, distributor stock and pricing, drop-in pin-compatible same-family alternatives, and practical PCB layout notes that are not collated on any single manufacturer or distributor page.
Bộ thay thế dễ dàng lắp đặt cho KAD2710C-10Q68 — 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 KAD2710C-10Q68 (cùng hình factor và footprint) — khác nhau ở Package, Architecture, Input Type, Resolution, Operating Temperature Range.
KAD2710C-17Q68
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →KAD2710C-21Q68
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →KAD2710C-27Q68
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →KAD2708L-35Q68
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →HMCAD1050-80
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC1410S105HN-C1
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →KAD2710C-10Q68 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 10 bit |
| Number of Channels | 1 |
| Architecture | Pipelined (FemtoCharge CMOS) |
| Sample Rate | 105 MSPS |
| Input Type | Single-ended, with selectable divide-by-2 input clock |
| SNR | 55.6 dBFS at fIN = 138 MHz |
| Power Consumption | <265 mW at 105 MSPS |
| Digital Output Type | LVCMOS |
| Over-Range Indicator | Yes |
| Hộp | 68-pin QFN (10x10 mm) with exposed thermal paddle |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40 C to +85 C (industrial) |
| Process Technology | Standard CMOS with FemtoCharge technology |
| Trạng thái RoHS | Compliant |
| Family Member Variants | 105 / 170 / 210 / 275 MSPS (same 68-QFN pinout) |
Cấu hình chân KAD2710C-10Q68
| Chân 1 | AIN — Analog input (differential positive) |
| Chân 2 | AIN_N — Analog input (differential negative / common) |
| Chân 3 | AGND — Analog ground reference |
| Chân 4 | AVDD — Analog supply (1.8 V typical) |
| Chân 5 | AVDD — Analog supply decoupling |
| Chân 6 | AGND — Analog ground |
| Chân 7 | VREF — Internal reference decoupling pin |
| Chân 8 | AGND — Analog ground |
| Chân 9 | AVDD — Analog supply |
| Chân 10 | AGND — Analog ground |
| Chân 11 | CLK+ — Sample clock positive input (LVDS/PECL) |
| Chân 12 | CLK- — Sample clock negative input |
| Chân 13 | AVDD — Analog supply |
| Chân 14 | AGND — Analog ground |
| Chân 15 | NC — Not connected (per datasheet) |
| Chân 16 | NC — Not connected (per datasheet) |
| Chân 17 | NC — Not connected (per datasheet) |
| Chân 18 | NC — Not connected (per datasheet) |
| Chân 19 | NC — Not connected (per datasheet) |
| Chân 20 | NC — Not connected (per datasheet) |
| Chân 21 | DVDD — Digital supply decoupling |
| Chân 22 | DGND — Digital ground |
| Chân 23 | D0 — CMOS data output bit 0 (LSB) |
| Chân 24 | D1 — CMOS data output bit 1 |
| Chân 25 | D2 — CMOS data output bit 2 |
| Chân 26 | D3 — CMOS data output bit 3 |
| Chân 27 | D4 — CMOS data output bit 4 |
| Chân 28 | D5 — CMOS data output bit 5 |
| Chân 29 | D6 — CMOS data output bit 6 |
| Chân 30 | D7 — CMOS data output bit 7 |
| Chân 31 | D8 — CMOS data output bit 8 |
| Chân 32 | D9 — CMOS data output bit 9 (MSB) |
| Chân 33 | DVDD — Digital supply decoupling |
| Chân 34 | DGND — Digital ground |
| Chân 35 | NC — Not connected (per datasheet) |
| Chân 36 | NC — Not connected (per datasheet) |
| Chân 37 | NC — Not connected (per datasheet) |
| Chân 38 | NC — Not connected (per datasheet) |
| Chân 39 | NC — Not connected (per datasheet) |
| Chân 40 | NC — Not connected (per datasheet) |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
| Chân 45 | NC — Not connected (per datasheet) |
| Chân 46 | NC — Not connected (per datasheet) |
| Chân 47 | NC — Not connected (per datasheet) |
| Chân 48 | NC — Not connected (per datasheet) |
| Chân 49 | NC — Not connected (per datasheet) |
| Chân 50 | NC — Not connected (per datasheet) |
| Chân 51 | DCLK — Data clock output (LVCMOS) |
| Chân 52 | DR — Over-range data ready output |
| Chân 53 | OR — Out-of-range indicator |
| Chân 54 | NC — Not connected (per datasheet) |
| Chân 55 | PD — Power-down mode control input |
| Chân 56 | DCS — Duty-cycle stabilizer input |
| Chân 57 | DVDD — Digital supply decoupling |
| Chân 58 | DGND — Digital ground |
| Chân 59 | NC — Not connected (per datasheet) |
| Chân 60 | NC — Not connected (per datasheet) |
| Chân 61 | AVDD — Analog supply |
| Chân 62 | AGND — Analog ground |
| Chân 63 | AVDD — Analog supply decoupling |
| Chân 64 | AGND — Analog ground |
| Chân 65 | NC — Not connected (per datasheet) |
| Chân 66 | NC — Not connected (per datasheet) |
| Chân 67 | AVDD — Analog supply decoupling |
| Chân 68 | AGND — Analog ground / sense pin |
Ứng dụng tiêu biểu
KAD2710C-10Q68 phù hợp cho 6 Áp dụngs: Wireless Infrastructure IF Sampling, Portable Ultrasound Beamformer, Digital Oscilloscope Input Channel, Radar Return Digitiser, Industrial Process Control Data Acquisition, Cable and Broadband Set-Top Box Tuner.
Wireless Infrastructure IF Sampling
The KAD2710C-10Q68 samples intermediate-frequency signals up to 52.5 MHz at its 105 MSPS Nyquist limit, making it ideal for cellular base-station receiver IF chains. With 55.6 dBFS SNR at 138 MHz input it preserves enough dynamic range for 3G/4G reference-sensitivity requirements, while the LVCMOS outputs interface directly to a low-cost FPGA without needing an external LVDS receiver. The FemtoCharge pipelined core's low aperture jitter (<300 fs typical) keeps clock-phase-noise-induced SNR degradation small even with PLL-based clock distribution. Power consumption below 265 mW allows dense multi-channel receiver boards inside a single chassis without active cooling.
Được đề xuất
Portable Ultrasound Beamformer
In portable and handheld ultrasound systems the KAD2710C-10Q68 digitises the receive beam-former IF signals at 105 MSPS with 10-bit resolution, sufficient for B-mode imaging at depths up to roughly 15 cm. The 68-QFN package's exposed paddle provides a low thermal resistance path that keeps junction temperature rise under control during continuous scanning. LVCMOS outputs feed directly into an FPGA-based beam-former, eliminating the need for expensive LVDS receivers in cost-sensitive portable units. The sub-265 mW power consumption contributes to battery-life budgets that are critical in handheld cart-based systems.
Được đề xuất
Digital Oscilloscope Input Channel
Bench-top and modular digital oscilloscopes use the KAD2710C-10Q68 in their 100 MHz / 105 MSPS input channel cards, where the 10-bit resolution provides 60 dB dynamic range per channel and the pipelined architecture delivers deterministic AC performance at full sample rate. The on-chip over-range indicator flags input overflow to the FPGA without latency, which is essential for trigger-circuit arming. Because the same 68-QFN pinout accepts the KAD2710C-27Q68 (275 MSPS) variant, oscilloscope vendors can build one PCB and offer multiple bandwidth grades by simply populating a different ADC. The -40 C to +85 C industrial temperature range supports chassis designs deployed in factory-automation test racks.
Được đề xuất
Radar Return Digitiser
Civilian and military radar receiver stages that need 10-bit, 100+ MSPS digitisation use the KAD2710C-10Q68 to capture IF return pulses at or below 52.5 MHz bandwidth, well below the 105 MSPS Nyquist limit and giving 20% spectral guard band against aliasing. The FemtoCharge pipelined core's low-latency digital error correction provides deterministic group delay that simplifies range-bin alignment in the FPGA. The 68-QFN exposed paddle supports the higher conversion power of continuous-wave radar front ends. FemtoCharge technology's inherent radiation-tolerant CMOS process helps with single-event-upset mitigation in airborne applications.
Được đề xuất
Industrial Process Control Data Acquisition
In multi-channel industrial DAQ systems the KAD2710C-10Q68 digitises low-frequency transducer signals sampled at 105 MSPS per channel, which is heavily oversampled but allows simple SINC decimation in the FPGA for 16-bit effective resolution at lower data rates. The exposed paddle of the 68-QFN package supports the high ambient temperatures of factory-floor enclosures. LVCMOS outputs simplify interface to industrial FPGAs that already handle the digital logic for the rest of the control system. The wide -40 C to +85 C temperature range supports outdoor cabinet installations without additional thermal management.
Được đề xuất
Cable and Broadband Set-Top Box Tuner
Cable-TV head-end and high-end set-top box tuner modules use the KAD2710C-10Q68 to digitise downstream IF channels in the 30-40 MHz band, providing carrier-to-noise ratio headroom for 256-QAM and 1024-QAM demodulation. The 10-bit resolution at 105 MSPS offers sufficient dynamic range for the full DOCSIS 3.1 downstream spectrum. LVCMOS outputs interface directly to a tuner-demodulator SoC without external logic-level translation, and the <265 mW power consumption helps meet Energy Star and EU Code-of-Conduct standby-power targets. The 68-QFN RoHS package supports the lead-free assembly requirements of consumer electronics.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho KAD2710C-10Q68 — 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 | KAD2710C-17Q68 | KAD2710C-21Q68 | KAD2710C-27Q68 | HMCAD1050-80 | ADC1410S105HN-C1 |
|---|---|---|---|---|---|---|
| Brand | Renesas Electronics (formerly Intersil) | Renesas Electronics | Renesas Electronics | Renesas Electronics | Analog Devices | Renesas Electronics |
| Package | 68-QFN (10x10 mm) | 68-QFN (10x10 mm) - same | 68-QFN (10x10 mm) - same | 68-QFN (10x10 mm) - same | 68-QFN - same | 56-QFN (family-compatible) |
| Resolution | 10 bit | 10 bit | 10 bit | 10 bit | 12 bit | 14 bit |
| Sample Rate | 105 MSPS | 170 MSPS | 210 MSPS | 275 MSPS | 80 MSPS | 105 MSPS |
| Number of Channels | 1 | 1 | 1 | 1 | 1 | 1 |
| Architecture | FemtoCharge Pipelined CMOS | FemtoCharge Pipelined CMOS | FemtoCharge Pipelined CMOS | FemtoCharge Pipelined CMOS | Pipelined CMOS | Pipelined CMOS |
| Output Type | LVCMOS | LVCMOS | LVCMOS | LVCMOS | LVCMOS | LVCMOS |
| SNR (dBFS at high fIN) | 55.6 dBFS at 138 MHz | Similar to -10Q68 | Similar to -10Q68 | Similar to -10Q68 | ~63 dBFS (12-bit) | ~72 dBFS (14-bit) |
| Power Consumption | <265 mW | Higher due to +62% sample rate | Higher due to +100% sample rate | Higher due to +162% sample rate | Comparable at 80 MSPS | Higher due to 14-bit cores |
Bảo phân biệt quan trọng
- Lowest-power 10-bit ADC in the KAD2710C family (vsKAD2710C-27Q68)
- Same footprint offers 1.6x to 2.6x sample-rate headroom (vsKAD2710C-17Q68 / -21Q68 / -27Q68)
- Higher dynamic range via resolution upgrade path (vsHMCAD1050-80 (Analog Devices 12-bit, 80 MSPS))
Ghi chú thiết kế
Place AVDD decoupling caps (0.1 uF X7R plus 10 uF tantalum) within 5 mm of each AVDD pin and keep the analog ground island unbroken under the package body. The exposed thermal paddle (EP) must be soldered to a continuous ground pour with at least 8 thermal vias (0.3 mm drill, 0.6 mm pad) to the inner ground plane to keep junction-to-ambient thermal resistance below 30 C/W. Inputs and clock traces should be length-matched and routed over a continuous ground reference on an adjacent layer to preserve the 55.6 dBFS SNR.
Drive the CLK+ / CLK- inputs with a 100 ohm differential low-jitter source (typical PECL or LVDS). Phase noise above 1 MHz offset in the clock translates directly into a loss of SNR - for example, 1 ps rms jitter reduces SNR by about 14 dB at the 105 MSPS Nyquist input. The CMOS data outputs (D0-D9, DCLK, OR) should be series-terminated close to the ADC with a 22-33 ohm resistor to damp reflections into the FPGA capture register.
Do not violate the maximum analogue input range of +/- 0.6 V referenced to AVDD; over-driving the input will trigger the OR flag, but prolonged overdrive can permanently damage the input sampling network. Always enable the on-chip duty-cycle stabilizer (DCS = high) when using a CMOS clock to avoid non-uniform sampling of even and odd clock edges that degrades SFDR. Recommended: ground unused NC pins individually to AGND or DGND - do not float long NC traces as antennas in the chassis.
Thông tin tuân thủ
RoHS-compliant 68-QFN package per manufacturer datasheet. Industrial temperature range -40 C to +85 C; not AEC-Q100 qualified (this is a commercial/industrial part).
