ADS62P22IRGC25 - Dual 12-Bit 65MSPS ADC | Texas Instruments
MPN: ADS62P22IRGC25 ✓ Hoạt độngADS62P22IRGC25 Tóm tắt
What is a pipeline ADC? A pipeline analog-to-digital converter is a high-speed Nyquist-rate architecture that processes an input sample through a sequence of low-resolution flash or multiplying-DAC stages, each handling a fraction of the overall conversion and yielding one output sample per clock cycle after pipeline latency is filled. Within the broader IC taxonomy it sits alongside successive-approximation (SAR), flash, and sigma-delta converters, occupying the niche where 10-14 bit resolution and tens-to-hundreds of MSPS are required, as in communications, instrumentation, and medical imaging.
Key features include a maximum sample rate of 65 MSPS per channel, integrated digital processing with fine gain correction in 0.05 dB steps, and a coarse 3.5 dB gain stage that lets the user trade dynamic range against SNR. The 12-bit core guarantees no missing codes across the full operating range, and the part shares a footprint and digital interface with TI's pin-compatible 14-bit ADS62P4x family, simplifying upgrades and A/B testing between resolutions.
Architecture-wise, the device uses differential input buffers, on-chip references, and a selectable output mode that lets one PCB layout drive parallel CMOS or DDR LVDS signaling. The 64-pin HVQCCN package exposes analog and digital supplies separately, enabling isolation between noisy digital return currents and sensitive analog ground references for high spurious-free dynamic range (SFDR).
Typical applications include multi-carrier wireless infrastructure receivers, ultrasound beam-former front ends, portable medical imaging data acquisition, and dual-channel IF digitisation in software-defined radios. The device's 95 dB channel-to-channel crosstalk and integrated gain control make it particularly attractive where two matched channels are required without external matching networks.
When designing in this ADC, decouple AVDD and DRVDD separately and place a low-impedance ground return directly under the exposed thermal pad to minimise digital noise coupling into the analog front end. Always verify input common-mode and clock duty cycle against the datasheet specifications to maintain SFDR performance.
Bộ thay thế dễ dàng lắp đặt cho ADS62P22IRGC25 — 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 ADS62P22IRGC25 (cùng hình factor và footprint) — khác nhau ở Package, Output Interface, Number of Channels, Resolution, Input Type.
ADS62P42IRGCR
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS62P24IRGCR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADS62P28IRGCR
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
ADS62P48IRGC25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS6242IRGZR
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →ADS62P22IRGC25 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 12 bit |
| Number of Channels | 2 |
| Sampling Rate (max) | 65 MSPS per channel |
| Architecture | Pipeline |
| Input Type | Differential |
| Data Interface | CMOS / DDR LVDS (selectable) |
| Hộp | 64-pin VQFN (RGC) 9x9 mm |
| Kiểu lắp đặt | Surface Mount |
| Khoảng nhiệt độ hoạt động | -40C to +85C (Industrial) |
| Supply Voltage - Analog (AVDD) | 3.3 V (typical) |
| Supply Voltage - Digital (DRVDD) | 1.8 V to 3.3 V (typical) |
| Channel-to-Channel Crosstalk | 95 dB |
| Coarse Gain | 3.5 dB |
| Fine Gain Adjustment | 0.05 dB steps up to 6 dB |
| Digital Processing | Offset correction, fine gain correction |
| Trạng thái RoHS | Compliant |
| Cấp MSL | 3 |
Cấu hình chân ADS62P22IRGC25
| Chân 1 | AINP_A — Analog input positive, channel A |
| Chân 2 | AINN_A — Analog input negative, channel A |
| Chân 3 | VCM_A — Common-mode voltage output, channel A |
| Chân 4 | AVDD — Analog supply voltage |
| Chân 5 | AGND — Analog ground |
| Chân 6 | REF — Reference voltage decoupling |
| Chân 7 | AVDD — Analog supply voltage |
| Chân 8 | AGND — Analog ground |
| Chân 9 | AINP_B — Analog input positive, channel B |
| Chân 10 | AINN_B — Analog input negative, channel B |
| Chân 11 | VCM_B — Common-mode voltage output, channel B |
| Chân 12 | AVDD — Analog supply voltage |
| Chân 13 | AGND — Analog ground |
| Chân 14 | CLK — ADC sample clock input |
| Chân 15 | CLKB — Complementary clock input (optional) |
| Chân 16 | DRVDD — Digital output supply voltage |
| Chân 17 | DRGND — Digital ground |
| Chân 18 | RESET — Hardware reset, active low |
| Chân 19 | CS — Serial interface chip select |
| Chân 20 | SCLK — Serial interface clock |
| Chân 21 | SDATA — Serial interface data |
| Chân 22 | SEN — Serial interface enable |
| Chân 23 | DRVDD — Digital output supply voltage |
| Chân 24 | DRGND — Digital ground |
| Chân 25 | D0_A — Channel A data output bit 0 (LSB) |
| Chân 26 | D1_A — Channel A data output bit 1 |
| Chân 27 | D2_A — Channel A data output bit 2 |
| Chân 28 | D3_A — Channel A data output bit 3 |
| Chân 29 | D4_A — Channel A data output bit 4 |
| Chân 30 | D5_A — Channel A data output bit 5 |
| Chân 31 | D6_A — Channel A data output bit 6 |
| Chân 32 | D7_A — Channel A data output bit 7 |
| Chân 33 | D8_A — Channel A data output bit 8 |
| Chân 34 | D9_A — Channel A data output bit 9 |
| Chân 35 | D10_A — Channel A data output bit 10 |
| Chân 36 | D11_A — Channel A data output bit 11 (MSB) |
| Chân 37 | DRGND — Digital ground |
| Chân 38 | DRVDD — Digital output supply voltage |
| Chân 39 | D0_B — Channel B data output bit 0 (LSB) |
| Chân 40 | D1_B — Channel B data output bit 1 |
| Chân 41 | D2_B — Channel B data output bit 2 |
| Chân 42 | D3_B — Channel B data output bit 3 |
| Chân 43 | D4_B — Channel B data output bit 4 |
| Chân 44 | D5_B — Channel B data output bit 5 |
| Chân 45 | D6_B — Channel B data output bit 6 |
| Chân 46 | D7_B — Channel B data output bit 7 |
| Chân 47 | D8_B — Channel B data output bit 8 |
| Chân 48 | D9_B — Channel B data output bit 9 |
| Chân 49 | D10_B — Channel B data output bit 10 |
| Chân 50 | D11_B — Channel B data output bit 11 (MSB) |
| Chân 51 | DRGND — Digital ground |
| Chân 52 | DRVDD — Digital output supply voltage |
| Chân 53 | DCLKP — DDR LVDS data clock positive (LVDS mode) |
| Chân 54 | DCLKN — DDR LVDS data clock negative (LVDS mode) |
| Chân 55 | FCLKP — DDR LVDS frame clock positive (LVDS mode) |
| Chân 56 | FCLKN — DDR LVDS frame clock negative (LVDS mode) |
| Chân 57 | LCLKP — DDR LVDS bit clock positive (LVDS mode) |
| Chân 58 | LCLKN — DDR LVDS bit clock negative (LVDS mode) |
| Chân 59 | DRVDD — Digital output supply voltage |
| Chân 60 | DRGND — Digital ground |
| Chân 61 | AVDD — Analog supply voltage |
| Chân 62 | AGND — Analog ground |
| Chân 63 | AVDD — Analog supply voltage |
| Chân 64 | AGND — Analog ground |
Ứng dụng tiêu biểu
ADS62P22IRGC25 phù hợp cho 6 Áp dụngs: Multi-Carrier Wireless Basestation Receiver, Ultrasound Beam-Former Front End, Portable Medical Imaging Data Acquisition, Software-Defined Radio IF Digitisation, Test and Measurement Instrumentation, Industrial Process Control Data Acquisition.
Multi-Carrier Wireless Basestation Receiver
The ADS62P22IRGC25 fits multi-carrier wireless basestation receivers because of dual matched 12-bit 65 MSPS pipeline cores with 95 dB channel-to-channel crosstalk and integrated 3.5 dB coarse / 0.05 dB fine gain for SFDR/SNR trade-off. Each channel can directly digitise an IF or baseband I/Q pair, allowing the FPGA/ASIC to perform channelisation, decimation, and digital predistortion on multiple carriers simultaneously. Unlike a single-channel ADC that requires two parts and matching networks, the dual integrated channel simplifies PCB layout, reduces component count, and improves channel-to-channel phase coherence critical for beam-forming and MIMO systems.
Được đề xuất
Ultrasound Beam-Former Front End
In portable and cart-based ultrasound imaging, the ADS62P22IRGC25's dual 65 MSPS channels enable beam-former front-end digitisation where phase-aligned matched channels are critical for image reconstruction. The 12-bit resolution and integrated gain stages (3.5 dB coarse, fine 0.05 dB steps up to 6 dB) allow TGC (time-gain-compensation) adjustment in the digital domain. With 95 dB crosstalk isolation, the dual ADC preserves low-amplitude echo signals in the presence of strong adjacent-channel transmissions. Designers value the VQFN-64 footprint's pin-compatibility with the broader ADS62Pxx family, simplifying prototype iteration between channels-per-board trade-offs.
Được đề xuất
Portable Medical Imaging Data Acquisition
Portable medical imaging data-acquisition systems benefit from the ADS62P22IRGC25's low power consumption at 65 MSPS, dual matched channels, and selectable CMOS or DDR LVDS outputs that flexibly interface with low-power FPGAs or application processors. The 12-bit pipeline architecture delivers Nyquist-rate sampling for physiological waveform capture, while the integrated digital processing block (offset correction, fine gain) reduces the host DSP's post-processing load. Industrial -40C to +85C temperature range and HVQCCN package suit portable enclosures where thermal management and mechanical reliability matter.
Được đề xuất
Software-Defined Radio IF Digitisation
In software-defined radio (SDR) platforms, the ADS62P22IRGC25 digitises intermediate-frequency (IF) signals on both I and Q paths simultaneously, eliminating I/Q mismatch that plagues discrete dual-ADC designs. The 12-bit, 65 MSPS per-channel rate allows digitisation of IF signals up to approximately 30 MHz, sufficient for narrow-band and many wide-band communications waveforms. CMOS or DDR LVDS digital outputs simplify interface to modern FPGAs implementing the digital down-conversion and demodulation. The VQFN-64 (RGC) footprint and pin-compatibility with the ADS62P4x 14-bit family allow SDR designers to swap resolution without PCB rework as channel requirements evolve.
Được đề xuất
Test and Measurement Instrumentation
Automated test equipment (ATE) and bench instruments benefit from the ADS62P22IRGC25's dual matched 65 MSPS channels for sampling oscilloscope and signal-analyzer front ends. The integrated gain control (3.5 dB coarse + fine gain) supports input-range scaling in the digital domain, while the 12-bit resolution and 95 dB channel isolation maintain measurement fidelity across differential probes. Selectable CMOS or DDR LVDS digital output modes allow flexible interface to either legacy parallel buses or high-speed serial LVDS link controllers.
Được đề xuất
Industrial Process Control Data Acquisition
Industrial process-control and condition-monitoring systems leverage the ADS62P22IRGC25's dual channels to digitise vibration, acoustic, or process signals simultaneously. The 12-bit pipeline ADC at 65 MSPS per channel captures transient events that slower SAR ADCs would miss, while the integrated digital processing simplifies per-channel calibration. The industrial -40C to +85C operating temperature and surface-mount VQFN-64 package suit harsh factory-floor enclosures where reliability and wide input range matter for long-life deployments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS62P22IRGC25 — 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 | ADS62P42IRGCR | ADS62P24IRGCR | ADS62P28IRGCR | ADS62P48IRGC25 | ADS6242IRGZR |
|---|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Package | VQFN-64 (RGC) 9x9 mm | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGC) 9x9 mm - same | VQFN-64 (RGZ) 9x9 mm - same footprint family |
| Resolution | 12 bit | 14 bit | 12 bit | 12 bit | 14 bit | 12 bit |
| Sampling Rate (max) | 65 MSPS/ch | 65 MSPS/ch | 105 MSPS/ch | 125 MSPS/ch | 65 MSPS/ch | 42 MSPS/ch |
| Number of Channels | 2 | 2 | 2 | 2 | 2 | 2 |
| Data Interface | CMOS / DDR LVDS | CMOS / DDR LVDS | CMOS / DDR LVDS | Serial LVDS only | CMOS / DDR LVDS | CMOS / DDR LVDS |
| Channel Crosstalk | 95 dB | 95 dB | 85 dB | 85 dB | 95 dB | 85 dB |
| 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
- Pin-compatible 14-bit upgrade path on same PCB (vsADS62P42IRGCR)
- Dual matched channels with 95 dB crosstalk (vsDiscrete dual-ADC design with two single-channel ADCs)
- Integrated digital gain control (vsADS6242IRGZR)
Ghi chú thiết kế
Decouple AVDD and DRVDD separately to prevent digital switching noise from coupling into the analog front end. Place a 10 uF bulk capacitor and a 0.1 uF ceramic decoupling cap close to each AVDD pin, and similarly for each DRVDD pin. Reference the analog and digital grounds at a single point under the exposed thermal pad to maintain the 95 dB channel crosstalk specification. Estimated total supply current at 65 MSPS is approximately 130 mA from AVDD plus digital output current depending on output mode (CMOS vs DDR LVDS).
Route the analog differential inputs (AINP_A/AINN_A, AINP_B/AINN_B) as length-matched 100 ohm differential traces, kept short and isolated from the digital output bus and clock lines. The exposed thermal pad of the VQFN-64 (RGC) package must be soldered to a continuous ground plane to meet the datasheet thermal resistance. Place the input common-mode capacitors (VCM_A, VCM_B) directly at the respective pins.
Maintain a 50% duty-cycle clock with low jitter (less than approximately 1 ps RMS) at the CLK input to preserve SNR and SFDR; SNR degrades roughly proportional to log(t_jitter). When using DDR LVDS output mode, route the LVDS pairs (DCLK, FCLK, LCLK and data) as length-matched 100 ohm differential traces, terminated close to the receiver. Confirm input common-mode voltage is within the datasheet-specified range for the chosen input configuration.
Do not exceed the absolute maximum AVDD rating; reverse supply connection will damage the device. When migrating firmware between ADS62P22IRGC25 and pin-compatible ADS62P42 (14-bit), update the serial-interface register configuration because register addresses and defaults differ between resolution grades. Always assert RESET after power-up and before initial configuration, per the datasheet power-up sequence.
Thông tin tuân thủ
RoHS compliant per TI product page. Industrial temperature grade (-40C to +85C). Not AEC-Q100 qualified - choose automotive-graded variant for automotive applications.
