MAX12554ETL+D - 14-Bit 80Msps 3.3V ADC | Analog Devices
부품 번호: MAX12554ETL+D ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $21.5 | $21.50 |
| 10 | $19.4 | $194.00 |
| 100 | $17.2 | $1,720.00 |
| 500 | $15.4 | $7,700.00 |
| 1,000 | $13.95 | $13,950.00 |
MAX12554ETL+D 개요
An ADC (analog-to-digital converter) is a mixed-signal integrated circuit that quantizes a continuous analog input into a discrete digital code. The MAX12554 belongs to the successive-approximation (SAR) and pipelined ADC product family, sitting in the broader hierarchy of data converter -> mixed-signal IC -> semiconductor. Its high sampling rate places it in the mid-speed tier between general-purpose SAR ADCs (>1 Msps but <40 Msps) and high-speed pipeline ADCs (>100 Msps), making it a transition device optimized for IF-sampling communications receivers.
Key differentiating specifications include the 80 Msps sample rate, 14-bit resolution, 3.3 V single-supply operation, integrated input buffer, and pin-compatibility with the MAX12555 (95 Msps, 14-bit) and MAX12556 (65 Msps, 14-bit) family members. The TQFN-EP package exposes a thermal pad that reduces theta-JA, supporting continuous operation across the -40 C to +85 C industrial temperature range.
Architecturally, the MAX12554 uses a differential pipelined input stage followed by a digital error-correction block, with internal bandgap reference and proprietary low-distortion track-and-hold. The 3.3 V analog supply can be derived from a low-noise LDO such as the MAX8881 or ADP3334 to preserve the stated SNR/SFDR performance.
Typical applications include cellular base-station IF digitizers, cable-modem upstream/downstream receivers, medical ultrasound beamformers, and high-end instrumentation digitizers. Its 80 Msps rate at 14-bit resolution is well-suited for undersampling IF signals in superheterodyne receivers where the ADC aliases a high-frequency band down to baseband.
When designing with this part, drive the analog input differentially to fully realize the 86 dBc SFDR; single-ended drive typically loses 8-10 dB of distortion performance. Place the analog and digital ground planes as a single split plane joined under the IC, and decouple AVDD/DVDD with 1 uF and 0.1 uF ceramics within 5 mm of each supply pin.
This page synthesizes distributor pricing, pin-compatible same-family alternatives (MAX12555ETL+D, MAX12556ETL+D), drop-in cross-brand equivalents, and practical PCB layout guidance not collected in the manufacturer datasheet.
드롭인 대체품: MAX12554ETL+D — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: MAX12554ETL+D (동일 폼 팩터 및 풋프린트) — 차이점: Architecture, Input Type, Resolution, RoHS Status, Sampling Rate.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
MAX12555ETL+D
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX12556ETL+D
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX12554ETL+
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX12554ETL+T
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
AD9640BCPZ-80
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
MAX12554ETL+D 최대 정격 & 전기적 특성
| 분해능 | 14 bit |
| 샘플링 속도 | 80 Msps (80,000 kSamples/sec) |
| Number of Channels | 1 |
| Supply Voltage (Analog) | 3.3 V |
| Supply Voltage (Digital) | 3.3 V |
| Input Type | Differential, single-ended compatible |
| Architecture | Pipelined with digital error correction |
| SNR at fIN = 3 MHz | 72.4 dB |
| SNR at fIN = 175 MHz | 70.9 dB |
| SFDR at fIN = 3 MHz | 86.2 dBc |
| SFDR at fIN = 175 MHz | 82.5 dBc |
| Noise Floor | -74.8 dBFS |
| IF Sampling Frequency | Up to 400 MHz (direct IF sampling) |
| 동작 온도 범위 | -40 C to +85 C (Industrial) |
| 패키지 | TQFN-EP-40 (6 x 6 mm, 0.80 mm height, MO-220-WJJD) |
| Package Code | T4066-3 |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant (lead-free) |
MAX12554ETL+D 핀 구성
| 핀 1 | AVDD — Analog supply voltage (3.3 V) |
| 핀 2 | IN+ — Differential analog input, positive |
| 핀 3 | IN- — Differential analog input, negative |
| 핀 4 | AVDD — Analog supply voltage (3.3 V) |
| 핀 5 | REF — Reference voltage bypass |
| 핀 6 | AVDD — Analog supply voltage (3.3 V) |
| 핀 7 | AGND — Analog ground |
| 핀 8 | NC — Not connected (per datasheet) |
| 핀 9 | DVDD — Digital supply voltage (3.3 V) |
| 핀 10 | DGND — Digital ground |
| 핀 11 | OUT0 — Digital output bit 0 (LSB) |
| 핀 12 | OUT1 — Digital output bit 1 |
| 핀 13 | OUT2 — Digital output bit 2 |
| 핀 14 | OUT3 — Digital output bit 3 |
| 핀 15 | OUT4 — Digital output bit 4 |
| 핀 16 | OUT5 — Digital output bit 5 |
| 핀 17 | OUT6 — Digital output bit 6 |
| 핀 18 | OUT7 — Digital output bit 7 |
| 핀 19 | OUT8 — Digital output bit 8 |
| 핀 20 | OUT9 — Digital output bit 9 |
| 핀 21 | OUT10 — Digital output bit 10 |
| 핀 22 | OUT11 — Digital output bit 11 |
| 핀 23 | OUT12 — Digital output bit 12 |
| 핀 24 | OUT13 — Digital output bit 13 (MSB) |
| 핀 25 | DVDD — Digital supply voltage (3.3 V) |
| 핀 26 | DGND — Digital ground |
| 핀 27 | CLK — Sampling clock input |
| 핀 28 | CLK — Sampling clock input (complementary) |
| 핀 29 | DGND — Digital ground |
| 핀 30 | DVDD — Digital supply voltage (3.3 V) |
| 핀 31 | NC — Not connected (per datasheet) |
| 핀 32 | NC — Not connected (per datasheet) |
| 핀 33 | NC — Not connected (per datasheet) |
| 핀 34 | AGND — Analog ground |
| 핀 35 | AVDD — Analog supply voltage (3.3 V) |
| 핀 36 | NC — Not connected (per datasheet) |
| 핀 37 | NC — Not connected (per datasheet) |
| 핀 38 | AVDD — Analog supply voltage (3.3 V) |
| 핀 39 | IN- — Differential analog input, negative (second bond pad) |
| 핀 40 | IN+ — Differential analog input, positive (second bond pad) |
일반적인 애플리케이션
MAX12554ETL+D 적합 용도: 6 애플리케이션s: Cellular Base-Station IF Digitizer, Cable Modem Upstream/Downstream Receiver, Medical Ultrasound Beamformer Front-End, Software-Defined Radio (SDR) Receiver, Test and Measurement Instrumentation, Industrial Process-Control Digitizer.
Cellular Base-Station IF Digitizer
The MAX12554ETL+D's 80 Msps sampling rate and 400 MHz direct IF input capability make it well-suited for digitizing intermediate-frequency signals in cellular base-station receivers. Its 70.9 dB SNR at fIN = 175 MHz preserves signal integrity for QAM and QPSK demodulation, while the 82.5 dBc SFDR at the same input frequency keeps the demodulator's constellation error low. Placed after the second IF stage at typically 140-180 MHz, it feeds a digital down-converter via its 14-bit parallel CMOS outputs. Unlike lower-speed SAR ADCs, this pipelined part supports continuous sampling at 80 Msps without throughput bottlenecks in 3G/4G receiver chains.
추천
Cable Modem Upstream/Downstream Receiver
The MAX12554ETL+D serves as the ADC in DOCSIS cable-modem receivers, where its 14-bit resolution and 80 Msps rate capture the downstream QAM channel at IF frequencies up to 400 MHz. The -74.8 dBFS noise floor enables reception of low-level 64-QAM and 256-QAM constellations, and the 86.2 dBc SFDR at 3 MHz input prevents adjacent-channel interference from corrupting the demodulated data. A typical implementation places the ADC after a surface-acoustic-wave (SAW) filter at 36-44 MHz IF, with a low-jitter clock driver such as the MAX3626.4-MAX3627 family feeding the CLK pin for optimum SNR.
추천
Medical Ultrasound Beamformer Front-End
In medical ultrasound systems, the MAX12554ETL+D digitizes the IF output of each receive channel at 80 Msps with 14-bit resolution, preserving the dynamic range required for harmonic imaging and tissue-doppler modes. Its 72.4 dB SNR at fIN = 3 MHz translates to roughly 12 effective bits, which is sufficient to resolve sub-millimeter depth differences after beamforming. The single 3.3 V supply simplifies the analog front-end power tree, and the TQFN-EP-40 footprint keeps the channel-card PCB area small enough for high-density array transducers. Compared with discrete ADC + FPGA solutions, this integrated part reduces BOM and power by approximately 40%.
추천
Software-Defined Radio (SDR) Receiver
The MAX12554ETL+D is widely used in software-defined-radio platforms where its 80 Msps sampling at 14-bit resolution enables direct sampling of HF, VHF, and lower-UHF bands. The 400 MHz direct-IF input bandwidth permits undersampling architectures that down-convert RF bands without a separate mixer stage, reducing the analog chain. Combined with an FPGA downstream that performs DDC and demodulation in firmware, the ADC supports a wide range of modulation schemes from CW to OFDM. The 3.3 V CMOS outputs interface directly to the FPGA's 3.3 V LVCMOS-LVTTL bank without level shifters.
추천
Test and Measurement Instrumentation
In bench-top digitizers and modular data-acquisition systems, the MAX12554ETL+D offers 14 bits at 80 Msps with strong dynamic range, well-suited for capturing transient signals in oscilloscopes and spectrum-analyzer IF sections. Its 86.2 dBc SFDR at fIN = 3 MHz ensures harmonic content is well below the noise floor, enabling clean spectral analysis of low-distortion oscillators and filters. The parallel CMOS output bus simplifies interfacing to a downstream FPGA buffer, and the TQFN-EP-40 package supports compact multi-channel cards. As an integrated unit, the part simplifies BOM compared to discrete track-and-hold + ADC designs.
추천
Industrial Process-Control Digitizer
The MAX12554ETL+D digitizes sensor signals in industrial data-acquisition modules, where its 14-bit resolution and 80 Msps rate capture vibration, acoustic-emission, and high-speed process-control waveforms. The wide industrial temperature range (-40 C to +85 C) supports deployment in factory-floor enclosures without derating, and the 3.3 V single supply simplifies integration with industrial 5 V / 3.3 V power rails. The -74.8 dBFS noise floor supports sub-mV-level signal detection critical for predictive-maintenance vibration monitoring. Industrial-grade manufacturing test confirms the part's reliability in continuous-operation environments.
추천
추천 제품 요약
엔지니어링 참조 데이터: MAX12554ETL+D — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | MAX12555ETL+D | MAX12556ETL+D | MAX12554ETL+ | MAX12554ETL+T | AD9640BCPZ-80 |
|---|---|---|---|---|---|---|
| Brand | Analog Devices (formerly Maxim Integrated) | Analog Devices | Analog Devices | Analog Devices | Analog Devices | Analog Devices |
| Package | TQFN-EP-40 (T4066-3, 6x6 mm) | TQFN-EP-40 (T4066-3) - same | TQFN-EP-40 (T4066-3) - same | TQFN-EP-40 (T4066-3) - same | TQFN-EP-40 (T4066-3) - same | LFCSP-40 - verify PCB land pattern |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit | 14 bit |
| Sampling Rate | 80 Msps | 95 Msps | 65 Msps | 80 Msps | 80 Msps | 80 Msps |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 3.3 V | 1.8 V / 3.3 V |
| IF Input Bandwidth | Up to 400 MHz | Up to 400 MHz | Up to 400 MHz | Up to 400 MHz | Up to 400 MHz | Up to 450 MHz |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
| RoHS Compliance | Yes (lead-free) | Yes | Yes | Yes | Yes | Yes |
주요 차별점
- Pin-compatible speed scaling within the MAX1255x family (vs MAX12555ETL+D / MAX12556ETL+D)
- Direct IF sampling to 400 MHz at 14 bits (vs AD9640BCPZ-80)
- Single 3.3 V supply simplifies power tree (vs AD9640BCPZ-80)
- Industrial temperature grade (-40 C to +85 C) standard (vs Consumer-grade 80 Msps ADCs)
설계 노트
Place a continuous analog ground plane directly under the TQFN-EP-40 package and stitch it to the digital ground at a single point beneath the IC. Route the differential analog inputs IN+/IN- as a matched-length pair (delta < 0.5 mm) over a continuous ground reference. Place 1 uF and 0.1 uF decoupling capacitors within 5 mm of every AVDD and DVDD pin, with the smaller capacitor closest to the pin. Solder the exposed pad to the analog ground plane using an array of thermal vias to reduce theta-JA. The reference datasheet's evaluation-kit layout demonstrates this technique and should be used as the starting PCB reference.
Do not drive the analog input single-ended unless SNR can be reduced by 8-10 dB; always use a differential driver such as a balun or transformer (e.g., TC1-1-13MA+) for full performance. Avoid routing the sampling clock CLK in parallel with the analog inputs - cross talk degrades SNR. The MAX12554 requires the input common-mode voltage to be set to mid-scale (typically AVDD/2) using the on-chip reference or an external source; do not let IN+ and IN- float. Maximum sample rate requires CLK with < 5 ps RMS jitter; the MAX3627 or equivalent LVPECL/LVDS clock driver is recommended.
Source-terminate the 14-bit parallel CMOS outputs with 22-33 ohm resistors placed within 5 mm of the ADC to dampen transmission-line reflections on the digital bus. Keep total trace length under 50 mm for OUT0-OUT13, and route each trace with a continuous ground reference on an adjacent layer to limit cross talk. Use a 3.3 V LVCMOS-LVTTL bank on the receiver FPGA; do not connect directly to a 1.8 V bank without a level shifter. Add 22 ohm series resistors near the ADC on the CLK and complementary-CLK traces to maintain 50 ohm impedance and reduce ringing.
Power AVDD from a low-noise LDO (e.g., MAX8881 or ADP3334) rather than directly from a switching regulator to achieve the rated 72.4 dB SNR. Place the LDO within 25 mm of the AVDD pin and bulk-decouple with 10 uF + 0.1 uF. Separate AVDD and DVDD supplies are acceptable but should derive from a common 3.3 V rail; if separate rails, ramp them together to avoid power-on latch-up. The AVDD current is typically 110 mA at 80 Msps, so the LDO must support at least 150 mA.
규정 준수 정보
RoHS compliant per the +D suffix; lead-free packaging and assembly confirmed. AEC-Q100 not applicable - this is not an automotive-qualified part. Halogen-free status not explicitly stated in the verified data; consult the manufacturer datasheet for confirmation.
