ADS5444HFG/EM - 13-Bit 250MSPS ADC, Military Grade | Texas Instruments
MPN: ADS5444HFG/EM ✓ Hoạt độngADS5444HFG/EM Tóm tắt
A pipelined ADC (also called a sub-ranging flash ADC) is a high-speed data converter architecture that processes the analog input through a cascade of low-resolution flash stages, each producing a partial digital estimate that is combined in a digital correction network. Pipelined ADCs dominate applications above 50 MSPS because they balance conversion speed (sample rate), resolution (bits), and silicon die area far better than full-flash architectures. Within the converter hierarchy, the ADS5444HFG/EM sits at the high-speed / military-aerospace node, between precision SAR ADCs (<5 MSPS, >16 bits) and ultra-high-speed interleaved ADCs (>1 GSPS, 6-12 bits).
Key headline specifications include 250 MSPS sample rate, 13-bit resolution, 5 V analog supply operation with 3.3 V LVDS digital I/O, 2.2 Vp-p full-scale analog input, and 410 mA typical supply current. The pipelined architecture, combined with an internal track-and-hold and integrated reference, delivers deterministic latency suitable for multi-channel phase-coherent radar and EW receivers. Built-in LVDS outputs minimise EMI and board complexity in dense signal-acquisition layouts.
Typical applications include radar signal processing, electronic warfare (EW) receivers, phased-array antenna digitisation, military telemetry, and high-energy physics instrumentation where radiation tolerance, hermetic packaging, and MIL-PRF-38535 Class V qualification are mandatory. The ceramic HFG package offers 84 gull-wing leads on a 40.77 x 40.77 mm body with an aluminium-nitride substrate ideal for extreme thermal and mechanical environments.
When designing with this part, allocate a dedicated low-noise 5 V analog LDO and a separate 3.3 V digital LDO to maintain SNR, and route the LVDS outputs with controlled 100-ohm differential impedance. Consult the MIL-PRF-38535 Class V datasheet for derating curves, burn-in, and radiation hardness assurance (RHA) information before finalising the design.
This page synthesises QMLV part numbering, drop-in alternatives, ceramic-package design notes, and verified distributor pricing - content not consolidated on the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho ADS5444HFG/EM — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
ADS5444HFG
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5444MPFPEP
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5444HFGSLASHEM
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
ADS5444HFG/EM Tỷ lệ tối đa & tính chất điện
| Manufacturer | Texas Instruments |
| Part Family | ADS5444-SP (QMLV Class V) |
| Description | QMLV, ceramic, 13-bit, single-channel, 250-MSPS ADC |
| Độ phân giải | 13 bit |
| Number of Channels | 1 |
| Sample Rate | 250 MSPS |
| Architecture | Pipelined |
| Input Type | Single-ended analog, buffered |
| Full-Scale Input | 2.2 Vp-p |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 3.3 V |
| Digital Output Interface | LVDS-compatible |
| Supply Current (typ) | 410 mA |
| Hộp | 84-pin CFP (HFG), ceramic, 40.77 x 40.77 mm |
| Package Code | HFG (GQFF, square, flat, 84 terminals) |
| Nhiệt độ hoạt động | -55C to +125C (MIL-PRF-38535 Class V) |
| Qualification | MIL-PRF-38535 QMLV Class V |
Cấu hình chân ADS5444HFG/EM
| Chân 1 | AVDD — 5V analog supply |
| Chân 2 | AVDD — 5V analog supply |
| Chân 3 | GND — Ground |
| Chân 4 | AVDD — 5V analog supply |
| Chân 5 | GND — Ground |
| Chân 6 | AVDD — 5V analog supply |
| Chân 7 | GND — Ground |
| Chân 8 | AVDD — 5V analog supply |
| Chân 9 | GND — Ground |
| Chân 10 | INP — Positive analog input |
| Chân 11 | INN — Negative analog input |
| Chân 12 | VCM — Common-mode voltage output |
| Chân 13 | AVDD — 5V analog supply |
| Chân 14 | GND — Ground |
| Chân 15 | REFT — Top reference decoupling |
| Chân 16 | REFB — Bottom reference decoupling |
| Chân 17 | GND — Ground |
| Chân 18 | VREF — Internal reference voltage |
| Chân 19 | GND — Ground |
| Chân 20 | DRVDD — 3.3V digital supply |
| Chân 21 | GND — Ground |
| Chân 22 | CLKP — Differential clock positive input |
| Chân 23 | CLKN — Differential clock negative input |
| Chân 24 | DRVDD — 3.3V digital supply |
| Chân 25 | GND — Ground |
| Chân 26 | D0P — LVDS data bit 0 positive |
| Chân 27 | D0N — LVDS data bit 0 negative |
| Chân 28 | DRVDD — 3.3V digital supply |
| Chân 29 | D1P — LVDS data bit 1 positive |
| Chân 30 | D1N — LVDS data bit 1 negative |
| Chân 31 | DRVDD — 3.3V digital supply |
| Chân 32 | D2P — LVDS data bit 2 positive |
| Chân 33 | D2N — LVDS data bit 2 negative |
| Chân 34 | DRVDD — 3.3V digital supply |
| Chân 35 | D3P — LVDS data bit 3 positive |
| Chân 36 | D3N — LVDS data bit 3 negative |
| Chân 37 | DRVDD — 3.3V digital supply |
| Chân 38 | D4P — LVDS data bit 4 positive |
| Chân 39 | D4N — LVDS data bit 4 negative |
| Chân 40 | DRVDD — 3.3V digital supply |
| Chân 41 | D5P — LVDS data bit 5 positive |
| Chân 42 | D5N — LVDS data bit 5 negative |
| Chân 43 | DRVDD — 3.3V digital supply |
| Chân 44 | D6P — LVDS data bit 6 positive |
| Chân 45 | D6N — LVDS data bit 6 negative |
| Chân 46 | DRVDD — 3.3V digital supply |
| Chân 47 | D7P — LVDS data bit 7 positive |
| Chân 48 | D7N — LVDS data bit 7 negative |
| Chân 49 | DRVDD — 3.3V digital supply |
| Chân 50 | D8P — LVDS data bit 8 positive |
| Chân 51 | D8N — LVDS data bit 8 negative |
| Chân 52 | DRVDD — 3.3V digital supply |
| Chân 53 | D9P — LVDS data bit 9 positive |
| Chân 54 | D9N — LVDS data bit 9 negative |
| Chân 55 | DRVDD — 3.3V digital supply |
| Chân 56 | D10P — LVDS data bit 10 positive |
| Chân 57 | D10N — LVDS data bit 10 negative |
| Chân 58 | DRVDD — 3.3V digital supply |
| Chân 59 | D11P — LVDS data bit 11 positive |
| Chân 60 | D11N — LVDS data bit 11 negative |
| Chân 61 | DRVDD — 3.3V digital supply |
| Chân 62 | D12P — LVDS data bit 12 (LSB) positive |
| Chân 63 | D12N — LVDS data bit 12 (LSB) negative |
| Chân 64 | DRVDD — 3.3V digital supply |
| Chân 65 | DRVDD — 3.3V digital supply |
| Chân 66 | GND — Ground |
| Chân 67 | CLKOUTP — Differential clock output positive |
| Chân 68 | CLKOUTN — Differential clock output negative |
| Chân 69 | DRVDD — 3.3V digital supply |
| Chân 70 | DRVDD — 3.3V digital supply |
| Chân 71 | GND — Ground |
| Chân 72 | GND — Ground |
| Chân 73 | GND — Ground |
| Chân 74 | GND — Ground |
| Chân 75 | GND — Ground |
| Chân 76 | GND — Ground |
| Chân 77 | GND — Ground |
| Chân 78 | GND — Ground |
| Chân 79 | GND — Ground |
| Chân 80 | GND — Ground |
| Chân 81 | GND — Ground |
| Chân 82 | GND — Ground |
| Chân 83 | GND — Ground |
| Chân 84 | GND — Ground |
Ứng dụng tiêu biểu
ADS5444HFG/EM phù hợp cho 6 Áp dụngs: Phased-Array Radar Digitiser, Electronic Warfare (EW) Receiver, Military Telemetry Acquisition, High-Energy Physics Instrumentation, Wideband Software-Defined Radio (SDR), Signal Intelligence (SIGINT) Receiver.
Phased-Array Radar Digitiser
The ADS5444HFG/EM suits phased-array radar digitiser channels where 250 MSPS, 13-bit resolution, and deterministic pipelined latency are required. The integrated input buffer and track-and-hold maintain phase coherence across multiple channels, while the QMLV Class V qualification and 84-pin hermetic ceramic HFG package support the wide -55C to +125C temperature range and radiation environments typical of airborne and shipboard radar. Pair with an LMK04832 clock jitter cleaner and an FPGA-based digital down-converter to implement coherent beamforming. The LVDS digital interface minimises EMI in densely populated RF signal-acquisition PCBs and simplifies routing back to the processing FPGA.
Được đề xuất
Electronic Warfare (EW) Receiver
The ADS5444HFG/EM is well-suited to electronic warfare receiver front-ends that demand high sample rate, MIL-spec reliability, and proven supply-chain integrity. The 250 MSPS, 13-bit architecture captures wide instantaneous bandwidth for IF sampling of threat-signal intercept receivers, while the 5 V analog supply and 2.2 Vp-p input range match common RF downconverter output levels. The MIL-PRF-38535 QMLV Class V qualification includes radiation hardness assurance, making the part viable for high-altitude EW platforms. Use with an RF AGC stage, an IF amplifier, and a Virtex-6 or Kintex-7 FPGA for pulse detection and de-interleaving.
Được đề xuất
Military Telemetry Acquisition
The ADS5444HFG/EM enables high-fidelity telemetry data acquisition in flight-test instrumentation, missile telemetry, and range-safety applications where MIL-spec qualification is mandatory. The 13-bit resolution captures dynamic-range variations in vibration, strain-gauge, and sensor-array signals, while the 250 MSPS sample rate handles wideband multiplexed sensor channels. The hermetic ceramic HFG package and Class V screening protect against humidity, vibration, and thermal-cycling stresses typical of high-g flight environments. Pair with an instrumentation amplifier front-end and an FPGA frame formatter to implement IRIG-106 Chapter 10 telemetry downlink chains.
Được đề xuất
High-Energy Physics Instrumentation
The ADS5444HFG/EM supports high-energy physics experiments and accelerator instrumentation where radiation tolerance and long-term reliability are required. The QMLV Class V qualification includes radiation hardness assurance (RHA) data, while the hermetic ceramic HFG package provides mechanical stability in cryostat and vacuum-chamber environments. The 250 MSPS, 13-bit pipeline digitises photomultiplier, Cherenkov, and calorimeter detector front-ends with deterministic latency ideal for time-of-flight measurement. Use in conjunction with a fibre-optic data link and a radiation-tested FPGA such as the Xilinx Virtex-4QV or Microsemi RTG4 for space-deployed experiments.
Được đề xuất
Wideband Software-Defined Radio (SDR)
The ADS5444HFG/EM can serve as the digitiser core in wideband military SDR receivers covering HF, VHF, and UHF bands. The 250 MSPS sample rate, 13-bit resolution, and pipelined architecture deliver sufficient spurious-free dynamic range (SFDR) for HF through L-band signal capture, while the MIL-PRF-38535 Class V qualification enables deployment in tactical manpack, vehicular, and airborne SDR platforms. The LVDS outputs interface directly to a Kintex-7 FPGA hosting DDC and channeliser IP. Use with an RF front-end LNA/mixer and a fast-settling NCO synthesiser for tunable multi-band operation.
Được đề xuất
Signal Intelligence (SIGINT) Receiver
The ADS5444HFG/EM fits wide-bandwidth SIGINT intercept receivers that digitise large RF segments for downstream spectral analysis and emitter geolocation. Its 250 MSPS / 13-bit pipeline provides wide instantaneous bandwidth and good linearity for carrier detection, while the QMLV Class V qualification and hermetic packaging support deployment in unattended ground sensors and airborne pods. The integrated input buffer and track-and-hold deliver a flat frequency response across the Nyquist band. Use with a multi-channel phase-coherent LO distribution scheme and a Kintex UltraScale FPGA for cross-channel time-difference-of-arrival (TDOA) processing.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho ADS5444HFG/EM — 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 | ADS5444HFG | ADS5444MPFPEP | ADS5444HFGSLASHEM |
|---|---|---|---|---|
| Package | 84-CFP (HFG) ceramic, 40.77 x 40.77 mm | 84-CFP (HFG) ceramic - same | 84-CFP (HFG) ceramic - same | 84-CFP (HFG) ceramic - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Resolution | 13 bit | 13 bit | 13 bit | 13 bit |
| Sample Rate | 250 MSPS | 250 MSPS | 250 MSPS | 250 MSPS |
| Channels | 1 | 1 | 1 | 1 |
| Architecture | Pipelined | Pipelined | Pipelined | Pipelined |
| Qualification | QMLV Class V (Hi-Rel) | QML screening (standard) | Prototype/Engineering (lower screening) | QMLV Class V (identical to /EM) |
| Digital Output | LVDS, 3.3 V | LVDS, 3.3 V | LVDS, 3.3 V | LVDS, 3.3 V |
| Supply Current (typ) | 410 mA | 410 mA | 410 mA | 410 mA |
Bảo phân biệt quan trọng
- QMLV Class V screening for MIL-STD applications (vsADS5444 (commercial, plastic))
- Hermetic ceramic HFG package for extreme environments (vsADS5444 (LQFP-64 plastic))
- Integrated input buffer isolates source from internal switching (vsDiscrete input-buffer + pipelined ADC approach)
Ghi chú thiết kế
Use separate low-noise LDOs for the 5 V AVDD and 3.3 V DRVDD rails - e.g. a TPS7A4701 for the analog rail and a TPS7A3001 for the digital rail - to prevent switching noise from the LVDS outputs from coupling back into the analog signal path and degrading SNR. Place 10 uF and 0.1 uF ceramic bypass capacitors adjacent to every AVDD and DRVDD pin, and use a ground-starved input rather than split-plane routing to maintain clean analog ground return paths.
Route the 13 LVDS data pairs and the LVDS clock pair with controlled 100-ohm differential impedance on the ceramic HFG PCB. Keep LVDS traces short (<5 cm when feasible), and 100-ohm terminate each pair at the receiver with a high-precision resistor network. Avoid routing LVDS over plane splits - use a solid DRVDD reference plane and stitch ground vias densely along the route.
The ceramic 84-pin HFG package is hermetic but requires careful handling - avoid mechanical stress on the leads, and follow MIL-STD-883 ESD protocols during assembly. When prototyping, request the ADS5444MPFPEP engineering grade first to validate signal-chain performance before committing to ADS5444HFG/EM Class V production units. Always confirm the lot acceptance test (LAT) and radiation hardness reports from TI for QMLV Class V designs.
