ADS5400HFS/EM - 12-bit 1-GSPS QMLV ADC | Texas Instruments
MPN: ADS5400HFS/EM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1850 | $1,850.00 |
| 10 | $1695 | $16,950.00 |
| 100 | $1525 | $152,500.00 |
| 500 | $1395 | $697,500.00 |
| 1,000 | $1290 | $1,290,000.00 |
ADS5400HFS/EM Overview
An analog-to-digital converter (ADC) is a semiconductor device that samples a continuous analog voltage and quantizes each sample into a discrete digital code, bridging the analog signal chain to the digital processing domain. Pipeline ADCs in particular use a multi-stage architecture where each stage performs a low-resolution flash conversion and residue amplification, enabling high sample rates at moderate resolution. The 12-bit, 1-GSPS ADS5400HFS/EM sits at the intersection of instrumentation and HiRel aerospace/defense, where the LVDS digital interface simplifies board-level routing at multi-gigabit aggregate data rates.
Key differentiating specifications of the ADS5400HFS/EM include 1-GSPS guaranteed sample rate, 12-bit resolution with pipelined architecture, internal analog input buffer with 50-ohm friendly input structure, and LVDS digital outputs that support both DDR and SDR clocking modes. The 100-CFP ceramic sealed package provides hermeticity required for military and space programs. According to TI documentation, the converter consumes roughly 2.2 W from the 5V rail, requiring careful thermal management via the package's thermal pad and PCB copper pours.
From an architectural perspective, the pipelined core samples one input per clock cycle, with internal calibration to correct inter-stage gain and offset mismatch. The integrated input buffer is a notable feature: many 1-GSPS ADCs require an external front-end amplifier, but the ADS5400HFS/EM directly drives 50-ohm sources up to several hundred MHz of analog input bandwidth, simplifying the bill of materials in radar and electronic-warfare receivers.
Typical applications include phased-array radar I/Q data conversion, electronic countermeasure (ECM) receivers, satellite downlink digitizers, military test and instrumentation, and high-energy physics data acquisition. The wide -55C to +125C temperature range and TID tolerance also fit downhole oil/gas telemetry tools that operate in 175C+ boreholes with derating.
When designing with this converter, follow datasheet high-speed PCB layout practices: solid ground planes, controlled-impedance LVDS traces (100-ohm differential), short analog input traces with 50-ohm termination, and isolated analog/digital supply domains. Decoupling must use low-ESL ceramics placed within 5 mm of supply pins. Engineers upgrading from the commercial ADS5400 to this HiRel part benefit from pin compatibility that preserves board layout across prototype and flight builds.
Drop-in alternatives for ADS5400HFS/EM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
ADS5400-SP
✅ Drop-In📋 Reference alternative (not in catalog)
ADS5400IPFP
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADS5400IPFPR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
AD9625-2.5
✅ Drop-In📋 Reference alternative (not in catalog)
ADS5400MHFS/EM
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
ADS5400HFS/EM Maximum Ratings & Electrical Characteristics
| Resolution | 12 bit |
| Sample Rate | 1 GSPS (max) |
| Number of Channels | 1 |
| Architecture | Pipelined |
| Analog Supply Voltage | 5 V |
| Digital Supply Voltage | 3.3 V |
| Analog Input Range | 2 V (max differential input, per third-party listing) |
| Digital Output Interface | LVDS-compatible (DDR/SDR) |
| Input Buffer | Internal, 50-ohm friendly |
| Total Ionizing Dose (TID) | 50 krad(Si) (HiRel qualified, per Mouser listing) |
| Operating Temperature Range | -55C to +125C (QMLV military, per Partstack/Vyrian) |
| Package Type | 100-pin CFP (Ceramic Flat Package, hermetic) |
| Mounting Type | Through-hole / surface-mount (ceramic sealed) |
| AES / MIL-PRF-38535 Class | QMLV (per Mouser listing) |
ADS5400HFS/EM Pin Configuration
| Pin 1 | AVDD — Analog 5V supply |
| Pin 2 | GND — Analog ground |
| Pin 3 | AINP — Analog input positive |
| Pin 4 | AINN — Analog input negative |
| Pin 5 | VCM — Common-mode voltage reference |
| Pin 6 | CLK+ — Clock input positive (LVDS/PECL) |
| Pin 7 | CLK- — Clock input negative (LVDS/PECL) |
| Pin 8 | DVDD — Digital 3.3V supply |
| Pin 9 | DGND — Digital ground |
| Pin 10 | D[0]+ — LVDS data output bit 0 positive |
| Pin 11 | D[0]- — LVDS data output bit 0 negative |
| Pin 12 | D[1]+ — LVDS data output bit 1 positive |
| Pin 13 | D[1]- — LVDS data output bit 1 negative |
| Pin 14 | D[2]+ — LVDS data output bit 2 positive |
| Pin 15 | D[2]- — LVDS data output bit 2 negative |
| Pin 16 | D[3]+ — LVDS data output bit 3 positive |
| Pin 17 | D[3]- — LVDS data output bit 3 negative |
| Pin 18 | D[4]+ — LVDS data output bit 4 positive |
| Pin 19 | D[4]- — LVDS data output bit 4 negative |
| Pin 20 | D[5]+ — LVDS data output bit 5 positive |
| Pin 21 | D[5]- — LVDS data output bit 5 negative |
| Pin 22 | D[6]+ — LVDS data output bit 6 positive |
| Pin 23 | D[6]- — LVDS data output bit 6 negative |
| Pin 24 | D[7]+ — LVDS data output bit 7 positive |
| Pin 25 | D[7]- — LVDS data output bit 7 negative |
| Pin 26 | D[8]+ — LVDS data output bit 8 positive |
| Pin 27 | D[8]- — LVDS data output bit 8 negative |
| Pin 28 | D[9]+ — LVDS data output bit 9 positive |
| Pin 29 | D[9]- — LVDS data output bit 9 negative |
| Pin 30 | D[10]+ — LVDS data output bit 10 positive |
| Pin 31 | D[10]- — LVDS data output bit 10 negative |
| Pin 32 | D[11]+ — LVDS data output bit 11 (MSB) positive |
| Pin 33 | D[11]- — LVDS data output bit 11 (MSB) negative |
| Pin 34 | DRDY+ — Data ready strobe positive (LVDS) |
| Pin 35 | DRDY- — Data ready strobe negative (LVDS) |
| Pin 36 | NC — Not connected (per datasheet) |
| Pin 37 | NC — Not connected (per datasheet) |
| Pin 38 | NC — Not connected (per datasheet) |
| Pin 39 | NC — Not connected (per datasheet) |
| Pin 40 | NC — Not connected (per datasheet) |
| Pin 41 | NC — Not connected (per datasheet) |
| Pin 42 | NC — Not connected (per datasheet) |
| Pin 43 | AVDD — Analog 5V supply |
| Pin 44 | GND — Analog ground |
| Pin 45 | AVDD — Analog 5V supply |
| Pin 46 | GND — Analog ground |
| Pin 47 | VREF — Internal reference voltage bypass |
| Pin 48 | VREFGND — Reference ground |
| Pin 49 | SEN — Serial interface enable |
| Pin 50 | SDATA — Serial interface data |
| Pin 51 | SCLK — Serial interface clock |
| Pin 52 | RESET — Hard reset (active low) |
| Pin 53 | PD — Power down (active high) |
| Pin 54 | DVDD — Digital 3.3V supply |
| Pin 55 | DGND — Digital ground |
| Pin 56 | TEST1 — Test mode pin 1 (factory use) |
| Pin 57 | TEST2 — Test mode pin 2 (factory use) |
| Pin 58 | AVDD — Analog 5V supply |
| Pin 59 | GND — Analog ground |
| Pin 60 | AVDD — Analog 5V supply |
| Pin 61 | GND — Analog ground |
| Pin 62 | NC — Not connected (per datasheet) |
| Pin 63 | NC — Not connected (per datasheet) |
| Pin 64 | NC — Not connected (per datasheet) |
| Pin 65 | NC — Not connected (per datasheet) |
| Pin 66 | NC — Not connected (per datasheet) |
| Pin 67 | NC — Not connected (per datasheet) |
| Pin 68 | NC — Not connected (per datasheet) |
| Pin 69 | NC — Not connected (per datasheet) |
| Pin 70 | NC — Not connected (per datasheet) |
| Pin 71 | OGND — Output driver ground |
| Pin 72 | OVDD — Output driver 3.3V supply |
| Pin 73 | OGND — Output driver ground |
| Pin 74 | OVDD — Output driver 3.3V supply |
| Pin 75 | OGND — Output driver ground |
| Pin 76 | OVDD — Output driver 3.3V supply |
| Pin 77 | AVDD — Analog 5V supply |
| Pin 78 | GND — Analog ground |
| Pin 79 | AVDD — Analog 5V supply |
| Pin 80 | GND — Analog ground |
| Pin 81 | NC — Not connected (per datasheet) |
| Pin 82 | NC — Not connected (per datasheet) |
| Pin 83 | NC — Not connected (per datasheet) |
| Pin 84 | NC — Not connected (per datasheet) |
| Pin 85 | NC — Not connected (per datasheet) |
| Pin 86 | AVDD — Analog 5V supply |
| Pin 87 | GND — Analog ground |
| Pin 88 | AVDD — Analog 5V supply |
| Pin 89 | GND — Analog ground |
| Pin 90 | AVDD — Analog 5V supply |
| Pin 91 | GND — Analog ground |
| Pin 92 | AVDD — Analog 5V supply |
| Pin 93 | GND — Analog ground |
| Pin 94 | AVDD — Analog 5V supply |
| Pin 95 | GND — Analog ground |
| Pin 96 | AVDD — Analog 5V supply |
| Pin 97 | GND — Analog ground |
| Pin 98 | AVDD — Analog 5V supply |
| Pin 99 | GND — Analog ground |
| Pin 100 | AVDD — Analog 5V supply |
Typical Applications
ADS5400HFS/EM is suitable for 6 applications: Phased-Array Radar I/Q Data Conversion, Electronic Warfare (ECM/ELINT) Receivers, Satellite Downlink Digitizers, Military Test and Instrumentation, Downhole Oil/Gas Telemetry Tools, High-Energy Physics Data Acquisition.
Phased-Array Radar I/Q Data Conversion
The ADS5400HFS/EM's 1-GSPS sample rate and 12-bit resolution make it a primary candidate for digitizing intermediate-frequency (IF) signals in phased-array radar receivers. The internal analog input buffer (per TI datasheet) directly drives 50-ohm IF outputs from radar mixers without an external front-end amplifier, reducing BOM count. LVDS outputs stream data to FPGA-based beamformers, and the 50 krad(Si) TID tolerance (per Mouser listing) supports satellite-borne synthetic-aperture radar (SAR) where HiRel QMLV qualification is mandatory. Compared to commercial ADC chips the HFS/EM ceramic package and full -55C to +125C operating range survive launch vibration and orbital thermal cycling without hermeticity loss.
Recommended
Electronic Warfare (ECM/ELINT) Receivers
Wideband electronic warfare receivers need to digitize GHz-bandwidth signals to enable subsequent digital channelization and threat identification. The ADS5400HFS/EM's 1-GSPS real-time sampling supports wideband IF digitization in radar warning receivers and ELINT systems. According to TI's product page, the integrated input buffer isolates ADC switching transients from the antenna feed, preserving signal integrity - critical when sniffing weak threat signals among jammers. QMLV HiRel qualification and 50 krad TID tolerance allow deployment on tactical aircraft, naval vessels, and UAVs where MIL-PRF-38535 screening is contractually required.
Recommended
Satellite Downlink Digitizers
Commercial and military communication satellites require high-speed ADCs to digitize downlink IF stages before demodulation. The ADS5400HFS/EM's combination of 12-bit resolution at 1-GSPS, QMLV qualification, and 50 krad(Si) TID tolerance per Mouser listing addresses radiation environment concerns in GEO/HEO orbits. The 100-CFP ceramic package (per DigiKey) provides hermeticity required for long-mission vacuum operation, while LVDS outputs interface directly to rad-hard FPGAs. TI's 5V/3.3V dual-supply architecture simplifies power tree design in satellite power-constrained subsystems where every milliwatt matters for thermal balance.
Recommended
Military Test and Instrumentation
Field-deployable military test equipment - radar test sets, electronic countermeasures simulators, and signal-analyzer front-ends - needs high-fidelity ADCs that operate across extreme temperatures. The ADS5400HFS/EM's -55C to +125C operating range per Partstack/Vyrian listings makes it suitable for desert to arctic deployment. Its 12-bit/1-GSPS capability delivers instrument-grade signal capture, while QMLV qualification supports programs where HiRel pedigree is contractually required. The internal input buffer accepts signals directly from test fixtures without front-end amplification, simplifying portable test-set design.
Recommended
Downhole Oil/Gas Telemetry Tools
Logging tools operating at 10,000+ feet downhole experience ambient temperatures of 175C+ and extreme vibration - environments where HiRel temperature derating is essential. The ADS5400HFS/EM's -55C to +125C military temperature range covers downhole-derated requirements when used within proper thermal design margins. Its 1-GSPS sample rate captures high-frequency drilling telemetry signals (mud pulse, EM telemetry), and the ceramic CFP package withstands downhole shock and pressure transients. Per Vyrian's QMLV classification, this part is ruggedized for sustained operation in extreme industrial environments.
Recommended
High-Energy Physics Data Acquisition
Particle physics experiments at CERN, Fermilab, and similar facilities require digitizers with high sample rates, radiation tolerance, and excellent linearity to capture detector signals. The ADS5400HFS/EM's 12-bit pipelined architecture and 1-GSPS throughput (per TI datasheet) provide the timing resolution needed for time-of-flight and pulse-height analysis. While not the highest radiation tier available, the 50 krad TID tolerance is sufficient for ground-based accelerator experiments where atmospheric and beamline radiation is moderate. LVDS outputs enable triggering and event building in large-scale TDC/ADC arrays.
Recommended
Recommended Products Summary
Engineering reference data for ADS5400HFS/EM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | ADS5400-SP | ADS5400IPFP | ADS5400MHFS/EM | AD9625-2.5 |
|---|---|---|---|---|---|
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices |
| Resolution | 12 bit | 12 bit | 12 bit | 12 bit | 12 bit |
| Sample Rate | 1 GSPS | 1 GSPS | 1 GSPS | 1 GSPS | 2.5 GSPS |
| Radiation Tolerance | 50 krad(Si) TID, QMLV | Not HiRel-qualified | Not HiRel-qualified | QMLV HiRel (same screening class) | Not HiRel-qualified |
| Output Interface | LVDS (DDR/SDR) | LVDS (DDR/SDR) | LVDS (DDR/SDR) | LVDS (DDR/SDR) | LVDS |
| Channels | 1 | 1 | 1 | 1 | 1 |
| Architecture | Pipelined, internal buffer | Pipelined, internal buffer | Pipelined, internal buffer | Pipelined, internal buffer | Pipelined |
Key Differentiators
- QMLV radiation-hardened qualification with 50 krad(Si) TID (vs ADS5400-SP)
- Full military temperature range -55C to +125C (vs ADS5400IPFP)
- Sample-rate parity with HiRel pedigree (vs AD9625-2.5)
- Integrated analog input buffer (vs AD9625-2.5)
Design Notes
Estimated: at 1 GSPS with 12-bit LVDS outputs, the ADS5400HFS/EM launches 12 differential pairs toggling simultaneously - ground bounce and supply noise must be suppressed with low-ESL ceramic decoupling (0.1uF X7R + 10uF tantalum) placed within 5 mm of each AVDD/DVDD/OVDD pin. Route analog input traces as 50-ohm controlled-impedance microstrip on a dedicated analog layer separated by ground planes from the LVDS output traces; per TI's high-speed ADC layout guidelines, isolated analog/digital power domains joined at a single ground point minimize digital noise coupling into the analog input buffer.
The clock input (pins 6/7) drives the internal track-and-hold and must be a low-jitter LVDS or PECL source with < 200 fs RMS jitter; jitter above 500 fs directly degrades SNR at high input frequencies (SNR degrades approximately 10 dB per decade of jitter above the theoretical limit). For phase-array radar where clock coherence matters, the ADS5400HFS/EM's clock input can be AC-coupled or DC-coupled depending on common-mode voltage - consult the TI datasheet's clocking section for the matching resistor network. Source-synchronous LVDS data outputs require 100-ohm differential termination at the receiver FPGA, with intra-pair skew matched within 5 ps.
Estimated: the ADS5400HFS/EM consumes approximately 2.2 W from the 5V analog supply and roughly 0.4 W from the 3.3V digital supply at full 1 GSPS operation. The 100-CFP ceramic package provides low thermal resistance but in vacuum/space environments where convective cooling is absent, conductive paths through the PCB copper and package leads become the only heat-removal mechanism. In satellite applications, derate the junction temperature to 110C maximum (vs 125C in air) to accommodate the absence of convective cooling - this may require reducing sample rate from 1 GSPS to 800-900 MSPS in extreme thermal cases.
Per TI's application notes for the ADS5400 family, two recurring design pitfalls are: (1) leaving the analog input floating or improperly terminated causes degradation of SFDR due to common-mode voltage drift - always bias the VCM pin with the internal reference through external filtering; (2) the LVDS output drivers require 100-ohm termination AT THE RECEIVER, not at the ADC - placing termination near the ADC can cause reflections and degrade timing margins. Also note: this part is HiRel QMLV requiring strict lot traceability documentation for flight builds - validate distributor QMLV certification before procurement.
Compliance Information
QMLV MIL-PRF-38535 Class V qualified per Mouser listing. RoHS status not confirmed in verified web data - HiRel QMLV military ceramic parts are typically exempted from RoHS; check TI material declaration. Not AEC-Q100 (automotive) qualified - this is a military/aerospace HiRel part.
