ADS58C28IRGC25 - Dual 11-Bit 200MSPS ADC | Texas Instruments
MPN: ADS58C28IRGC25 ✓ Hoạt độngADS58C28IRGC25 Tóm tắt
An analog-to-digital converter (ADC) is a mixed-signal integrated circuit that converts continuous analog voltages into binary digital codes. High-speed pipeline ADCs such as the ADS58C28 use a switched-capacitor pipeline architecture, sampling the input on a track-and-hold stage and propagating the residue through successive low-resolution stages. In the system hierarchy the ADS58C28 sits as: pipeline ADC -> ADC -> data converter -> mixed-signal IC -> integrated circuit. It is a foundational building block for digitizing IF/RF signals in software-defined radio, base stations, and instrumentation.
Key specifications include 200 MSPS maximum sample rate, 83 dBc SFDR, 72.5 dBFS SNR with 60 MHz bandwidth using TI's third-generation SNRBoost3G technology, 1.8 V analog/digital supply, and CMOS-compatible LVDS outputs. The SNRBoost3G feature supports wide-bandwidth multi-carrier reception by allowing digital post-processing to remove in-band spurs, dramatically improving effective dynamic range in dense carrier environments.
Architecturally, the ADS58C28 uses a differential input buffer, a wide-bandwidth track-and-hold, a digital gain and offset correction loop, and dual parallel LVDS output buses. Per-channel digital decimation filters can be applied to relax anti-alias requirements and reduce out-of-band noise. The 64-pin VQFN package with exposed thermal pad enables compact PCB layouts suitable for mezzanine cards and densely populated base-station line cards.
Typical applications include wireless infrastructure receivers (multi-standard 2G/3G/4G/5G base stations), software-defined radio (SDR) and wideband IF sampling, test and measurement instrumentation, radar and EW signal acquisition, and medical imaging front-ends. The dual-channel integration halves the PCB footprint versus two discrete ADCs while preserving channel-to-channel matching.
A key design consideration is that the SNRBoost3G mode requires an external FPGA or DSP to perform digital spur cancellation. Designers must allocate LVDS output lanes (DDR) and provide matched-length PCB routing. The 1.8 V supply requires low-noise LDO regulators (e.g., TPS7A4701 family) for the analog AVDD rail to avoid coupling switching noise into the ADC.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the standalone manufacturer datasheet, providing engineering context beyond the factory datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ADS58C28IRGC25 — 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 ADS58C28IRGC25 (cùng hình factor và footprint) — khác nhau ở Number of Channels, Resolution, Package, Architecture, Input Type.
ADS58C28IRGCT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS62P23IRGC25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS62P22IRGC25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS62P48IRGC25
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADC14DS105AISQ/NOPB
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →ADS58C28IRGC25 Tỷ lệ tối đa & tính chất điện
| Độ phân giải | 11 bit |
| Number of Channels | 2 |
| Architecture | Pipelined |
| Maximum Sample Rate | 200 MSPS |
| Analog Supply Voltage | 1.8 V |
| Digital Supply Voltage | 1.8 V |
| Input Type | Differential |
| SFDR | 83 dBc |
| SNR (60 MHz BW, SNRBoost3G) | 72.5 dBFS |
| Output Interface | LVDS (DDR) |
| Technology | CMOS |
| Hộp | VQFN-64 (RGC) 9x9 mm with exposed thermal pad |
| Nhiệt độ hoạt động | -40 C to +85 C |
| Kiểu lắp đặt | Surface Mount |
| Trạng thái RoHS | Compliant |
| Số chân | 64 |
Cấu hình chân ADS58C28IRGC25
| Chân 1 | AVDD — Analog 1.8V supply |
| Chân 2 | AVDD — Analog 1.8V supply |
| Chân 3 | GND — Ground |
| Chân 4 | INP_A — Channel A positive differential input |
| Chân 5 | INN_A — Channel A negative differential input |
| Chân 6 | VCM_A — Channel A common-mode voltage |
| Chân 7 | GND — Ground |
| Chân 8 | AVDD — Analog 1.8V supply |
| Chân 9 | AVDD — Analog 1.8V supply |
| Chân 10 | GND — Ground |
| Chân 11 | INP_B — Channel B positive differential input |
| Chân 12 | INN_B — Channel B negative differential input |
| Chân 13 | VCM_B — Channel B common-mode voltage |
| Chân 14 | GND — Ground |
| Chân 15 | AVDD — Analog 1.8V supply |
| Chân 16 | CLKP — Differential clock input positive |
| Chân 17 | CLKN — Differential clock input negative |
| Chân 18 | GND — Ground |
| Chân 19 | AVDD — Analog 1.8V supply |
| Chân 20 | AVDD — Analog 1.8V supply |
| Chân 21 | SEN — Serial enable |
| Chân 22 | SDATA — Serial data input |
| Chân 23 | SCLK — Serial clock |
| Chân 24 | RESET — Hardware reset (active low) |
| Chân 25 | PDN — Power-down (active high) |
| Chân 26 | GND — Ground |
| Chân 27 | DRVDD — Digital output 1.8V supply |
| Chân 28 | DRVDD — Digital output 1.8V supply |
| Chân 29 | GND — Ground |
| Chân 30 | D0P_A — Channel A LVDS data output 0 positive |
| Chân 31 | D0N_A — Channel A LVDS data output 0 negative |
| Chân 32 | D1P_A — Channel A LVDS data output 1 positive |
| Chân 33 | D1N_A — Channel A LVDS data output 1 negative |
| Chân 34 | D2P_A — Channel A LVDS data output 2 positive |
| Chân 35 | D2N_A — Channel A LVDS data output 2 negative |
| Chân 36 | D3P_A — Channel A LVDS data output 3 positive |
| Chân 37 | D3N_A — Channel A LVDS data output 3 negative |
| Chân 38 | D4P_A — Channel A LVDS data output 4 positive |
| Chân 39 | D4N_A — Channel A LVDS data output 4 negative |
| Chân 40 | D5P_A — Channel A LVDS data output 5 positive |
| Chân 41 | D5N_A — Channel A LVDS data output 5 negative |
| Chân 42 | DRVDD — Digital output 1.8V supply |
| Chân 43 | DCLKOUTP — LVDS clock output positive |
| Chân 44 | DCLKOUTN — LVDS clock output negative |
| Chân 45 | GND — Ground |
| Chân 46 | D0P_B — Channel B LVDS data output 0 positive |
| Chân 47 | D0N_B — Channel B LVDS data output 0 negative |
| Chân 48 | D1P_B — Channel B LVDS data output 1 positive |
| Chân 49 | D1N_B — Channel B LVDS data output 1 negative |
| Chân 50 | D2P_B — Channel B LVDS data output 2 positive |
| Chân 51 | D2N_B — Channel B LVDS data output 2 negative |
| Chân 52 | D3P_B — Channel B LVDS data output 3 positive |
| Chân 53 | D3N_B — Channel B LVDS data output 3 negative |
| Chân 54 | D4P_B — Channel B LVDS data output 4 positive |
| Chân 55 | D4N_B — Channel B LVDS data output 4 negative |
| Chân 56 | D5P_B — Channel B LVDS data output 5 positive |
| Chân 57 | D5N_B — Channel B LVDS data output 6 negative |
| Chân 58 | DRVDD — Digital output 1.8V supply |
| Chân 59 | NC — Not connected |
| Chân 60 | NC — Not connected |
| Chân 61 | GND — Ground |
| Chân 62 | AVDD — Analog 1.8V supply |
| Chân 63 | GND — Ground |
| Chân 64 | EP — Exposed thermal pad - connect to ground |
Ứng dụng tiêu biểu
ADS58C28IRGC25 phù hợp cho 6 Áp dụngs: Wireless Base Station Receiver, Software Defined Radio (SDR), Test and Measurement Instrumentation, Radar and Electronic Warfare Signal Acquisition, Medical Imaging Front-End, Industrial Multi-Carrier Communications.
Wireless Base Station Receiver
The ADS58C28IRGC25's dual 200 MSPS sampling channels and 72.5 dBFS SNR over 60 MHz bandwidth make it well-matched to multi-carrier wireless base station IF receivers. Its SNRBoost3G digital spur cancellation feature allows receivers to handle dense carrier allocations in 4G LTE and 5G NR systems where adjacent channel blocker tolerance is critical. The LVDS DDR digital interface simplifies FPGA capture and clock-domain crossing. Compared to discrete single-channel ADC pairs, the ADS58C28 halves PCB footprint and improves channel-to-channel gain/phase matching for diversity and MIMO architectures.
Được đề xuất
Software Defined Radio (SDR)
In wideband SDR platforms the ADS58C28IRGC25 digitizes wide IF bandwidths up to 60 MHz per carrier at 200 MSPS, enabling reception of multiple simultaneous waveforms from a single antenna chain. The 83 dBc SFDR ensures that strong in-band signals do not mask weaker signals of interest, a key requirement for cognitive radio and spectrum-monitoring applications. The 1.8 V low-power operation extends battery life in portable SDR test gear and manpack radios. The dual-channel integration enables direct I/Q sampling at IF, eliminating analog quadrature mixers and reducing total system cost and complexity.
Được đề xuất
Test and Measurement Instrumentation
The ADS58C28IRGC25 is well-suited to digitizing oscilloscope, spectrum analyzer, and signal-analyzer input stages where 11-bit vertical resolution and 200 MSPS capture rate support characterization of signals up to 60 MHz bandwidth. The dual channel allows simultaneous sampling of two test channels for time-interleaved measurement. SNRBoost3G allows the analyzer to dynamically cancel internal spur sources, improving effective dynamic range by 5-10 dB. Compared to oscilloscope ASICs, the ADS58C28 provides a low-risk COTS path to instrumentation designs requiring IF-sampling architectures with predictable AC performance.
Được đề xuất
Radar and Electronic Warfare Signal Acquisition
The ADS58C28IRGC25's 83 dBc SFDR is essential for radar and EW receivers that must detect weak returns in the presence of strong jamming or clutter signals. The 200 MSPS sampling supports IF bandwidths typical of pulse-Doppler and SAR radar systems. The dual-channel integration enables simultaneous capture of sum and delta channels in monopulse radar antennas, simplifying beam steering and target tracking. SNRBoost3G can be used to notch out narrow-band jammer signals in software, improving effective SNR in contested RF environments without analog filtering.
Được đề xuất
Medical Imaging Front-End
In ultrasound and MRI receiver front-ends the ADS58C28IRGC25 provides low-noise digitization of received IF signals with 72.5 dBFS SNR, supporting the wide dynamic range needed to capture both strong specular reflections and weak scattered signals. The dual channel supports parallel receive paths for beamformed imaging arrays. The 1.8 V supply simplifies compliance with patient-safety leakage current budgets in medical equipment. Low power consumption (~480 mW per channel) enables dense channel-count probe designs with minimal heat dissipation.
Được đề xuất
Industrial Multi-Carrier Communications
Industrial wireless systems including private LTE, 5G NR campus networks, and broadband PMR benefit from the ADS58C28IRGC25's 200 MSPS dual-channel sampling and SNRBoost3G digital spur rejection. The wide 60 MHz IF bandwidth per carrier supports aggregated carrier reception in licensed and unlicensed spectrum. The -40 to +85 C industrial temperature range enables deployment in outdoor base stations, factory automation cells, and mining or oilfield sites. Compared to consumer-grade ADCs, the ADS58C28's robust ESD and latch-up immunity per TI datasheet testing simplifies qualification for industrial environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS58C28IRGC25 — 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 | ADS58C28IRGCT | ADS62P23IRGC25 | ADS62P22IRGC25 | ADS62P48IRGC25 | ADC14DS105AISQ/NOPB |
|---|---|---|---|---|---|---|
| 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 - same family |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 11 bit | 11 bit - same | 12 bit | 12 bit | 14 bit | 14 bit |
| Maximum Sample Rate | 200 MSPS | 200 MSPS - same | 125 MSPS | 65 MSPS | 210 MSPS | 105 MSPS |
| Number of Channels | 2 | 2 - same | 2 | 2 | 2 | 2 |
| Supply Voltage | 1.8 V | 1.8 V - same | 3.3 V | 3.3 V | 3.3 V | 1.8 V |
| Output Interface | LVDS DDR | LVDS DDR - same | LVDS | LVDS | LVDS | JESD204B |
| SFDR | 83 dBc | 83 dBc - same | 85 dBc | 85 dBc | 85 dBc | 85 dBc |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C - same | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Bảo phân biệt quan trọng
- SNRBoost3G digital spur cancellation (vsADS62P23IRGC25)
- Higher sample rate per channel at 1.8 V (vsADS62P22IRGC25)
- Dual-channel integration in compact VQFN-64 (vsADS62P48IRGC25)
Ghi chú thiết kế
The ADS58C28IRGC25 requires low-noise regulation on AVDD and DRVDD. A switch-mode supply's ripple directly degrades SFDR; per the TI datasheet, use an LDO such as TPS7A4701 with at least 10 uF ceramic output capacitance. Place the LDO within 25 mm of the ADC supply pins and route separate power pours for analog and digital rails to prevent digital switching noise from coupling into the analog supply. Estimated: AVDD current draw at 200 MSPS is approximately 280 mA per channel, requiring an LDO rated at 1 A continuous.
LVDS DDR output traces must be impedance-controlled to 100 ohm differential with matched lengths within 0.5 mm. Per TI application notes, route the 12 LVDS data lanes + 1 clock pair on an inner stripline layer with continuous reference ground plane. Avoid routing LVDS signals across plane splits or noisy digital regions; this causes Common-Mode noise and degrades bit-error rate. AC-couple the LVDS outputs with 100 nF capacitors if the receiving FPGA uses CML or HSTL, otherwise DC-couple directly when FPGA supports LVDS.
The differential analog inputs (INP_A/INN_A, INP_B/INN_B) require 100 ohm differential routing and a common-mode capacitor to VCM pin. Per TI layout guidelines, keep analog input traces short and symmetric to minimize channel-to-channel skew. The exposed thermal pad (pin 64) must be soldered to a 5x5 mm minimum ground copper pour for thermal dissipation; ground stitching vias on 1 mm pitch connect the EP to the internal ground layer for both thermal and electrical reference.
Do not leave the SNRBoost3G mode disabled if multi-carrier spurs are present in the IF spectrum - the digital post-processing provides 5-10 dB of effective dynamic range improvement. Ensure the FPGA captures the 6-bit LVDS data per channel in DDR mode at the rising and falling edges of DCLKOUT. SPI configuration (SCLK/SDATA/SEN) must be initialized at power-up before any data is captured; failing to do so leaves the ADC in an undefined state.
Thông tin tuân thủ
RoHS compliant per TI product page. Industrial temperature range -40 to +85 C. Not AEC-Q100 qualified (this is an industrial/communications part).
