MAX12553ETL+TG3U - 14-Bit 65Msps 3.3V ADC | Maxim Integrated
N.º da peça: MAX12553ETL+TG3U ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $18.45 | $18,45 |
| 10 | $16.5 | $165,00 |
| 100 | $14.2 | $1.420,00 |
| 500 | $12.05 | $6.025,00 |
| 1.000 | $10.45 | $10.450,00 |
MAX12553ETL+TG3U Visão geral
An ADC (Analog-to-Digital Converter) is a mixed-signal integrated circuit that samples continuous analog voltage and quantizes it into a discrete digital code. Pipelined ADCs use multiple cascaded low-resolution stages to achieve high sample rates (tens to hundreds of Msps) at moderate resolution (10-16 bits), and they sit within the IC hierarchy: data converter -> ADC -> pipelined ADC -> mixed-signal IC -> semiconductor. The MAX12553 is a representative member of this family, optimized for low power (3.3V supply) and small footprint.
Key specifications include 14-bit resolution, 65Msps maximum sample rate, a 3.3V analog/digital supply, and an LVDS-compatible 14-bit parallel digital interface. The differential analog input is internally biased with a common-mode reference, which removes the need for an external op-amp level shifter in many applications. The integrated bandgap reference and input track-and-hold minimize external BOM, while the on-chip duty-cycle equalizer corrects non-50% clocks.
The MAX12553 architecture uses a multi-stage pipelined core with per-stage error correction, achieving low integral nonlinearity (INL) and differential nonlinearity (DNL) suitable for communications, imaging, and instrumentation. The LVDS output bus reduces EMI relative to CMOS alternatives at the 65Msps data rate, simplifying PCB routing and reducing ground-bounce coupling into the analog front end.
Typical applications include high-speed digital oscilloscopes and data acquisition front ends, IF-sampling software-defined radio receivers, medical ultrasound beamformers, CCD/cis imaging pipelines, and baseband digitization in point-to-point microwave backhaul links. The wide input bandwidth and low aperture jitter make it well suited for undersampling IFs in communications receivers.
When designing with the MAX12553, drive the analog input with a low-noise differential amplifier (e.g., a fully-differential op-amp such as the MAX4108) and provide a low-jitter clock source to preserve SNR at high input frequencies. Decouple AVDD and DVDD with separate 0.1uF and 10uF capacitor networks placed close to the supply pins, and tie the exposed pad (EP) to a clean analog ground plane for thermal dissipation and ground reference integrity.
This page synthesizes the manufacturer datasheet, distributor pricing, drop-in same-package alternatives, and practical design notes not found in the datasheet alone, providing a self-contained reference for component evaluation, sourcing, and PCB bring-up.
Alternativas drop-in para MAX12553ETL+TG3U — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com MAX12553ETL+TG3U (mesmo formato e footprint) — diferindo em Duty-Cycle Equalizer, Input Type, Internal Reference, Operating Temperature Range, Package.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MAX12553ETL+G3U
✅ Drop-In✓ Em estoque
$8.12 / unidade
Ver ficha técnica →MAX12554ETL+
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MAX12555ETL+
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
MAX12553ETL+TG3U Classificações máximas e características elétricas
| Resolução | 14 bit |
| Sample Rate (max) | 65 Msps |
| Architecture | Pipelined |
| Number of Channels | 1 |
| Input Type | Differential / Single-Ended |
| Analog Supply Voltage | 3.3 V |
| Digital Supply Voltage | 3.3 V |
| Digital Output Interface | LVDS-compatible 14-bit Parallel |
| Encapsulamento | 40-pin TQFN-EP (6 mm x 6 mm x 0.8 mm) |
| Tipo de montagem | Surface Mount |
| Temperature Grade | Industrial |
| Faixa de temperatura de operação | -40 C to +85 C |
| Terminal Form | No Lead |
| Package Code | HVQCCN |
| Package Shape | Square |
| Internal Reference | Yes |
| Internal Track-and-Hold | Yes |
| Duty-Cycle Equalizer | Yes (on-chip) |
Configuração de pinos do MAX12553ETL+TG3U
| Pino 1 | GND — Ground |
| Pino 2 | AVDD — Analog 3.3 V supply |
| Pino 3 | INP — Positive analog input (differential) |
| Pino 4 | INN — Negative analog input (differential) |
| Pino 5 | CM — Common-mode reference (internal bias) |
| Pino 6 | REFIN — External reference input (or bypass for internal reference) |
| Pino 7 | REFOUT — Internal bandgap reference output |
| Pino 8 | GND — Ground |
| Pino 9 | AVDD — Analog 3.3 V supply |
| Pino 10 | GND — Ground |
| Pino 11 | DVDD — Digital 3.3 V supply (LVDS bias) |
| Pino 12 | GND — Ground |
| Pino 13 | CLK — Conversion clock input (positive) |
| Pino 14 | CLKB — Conversion clock input (negative / complement) |
| Pino 15 | GND — Ground |
| Pino 16 | OEB — Output enable (active low) |
| Pino 17 | D0+ — LVDS data output bit 0 (positive) |
| Pino 18 | D0- — LVDS data output bit 0 (negative) |
| Pino 19 | D1+ — LVDS data output bit 1 (positive) |
| Pino 20 | D1- — LVDS data output bit 1 (negative) |
| Pino 21 | D2+ — LVDS data output bit 2 (positive) |
| Pino 22 | D2- — LVDS data output bit 2 (negative) |
| Pino 23 | D3+ — LVDS data output bit 3 (positive) |
| Pino 24 | D3- — LVDS data output bit 3 (negative) |
| Pino 25 | D4+ — LVDS data output bit 4 (positive) |
| Pino 26 | D4- — LVDS data output bit 4 (negative) |
| Pino 27 | D5+ — LVDS data output bit 5 (positive) |
| Pino 28 | D5- — LVDS data output bit 5 (negative) |
| Pino 29 | D6+ — LVDS data output bit 6 (positive) |
| Pino 30 | D6- — LVDS data output bit 6 (negative) |
| Pino 31 | D7+ — LVDS data output bit 7 (positive) |
| Pino 32 | D7- — LVDS data output bit 7 (negative) |
| Pino 33 | D8+ — LVDS data output bit 8 (positive) |
| Pino 34 | D8- — LVDS data output bit 8 (negative) |
| Pino 35 | D9+ — LVDS data output bit 9 (positive) |
| Pino 36 | D9- — LVDS data output bit 9 (negative) |
| Pino 37 | D10+ — LVDS data output bit 10 (positive) |
| Pino 38 | D10- — LVDS data output bit 10 (negative) |
| Pino 39 | D11+ — LVDS data output bit 11 (positive) |
| Pino 40 | D11- — LVDS data output bit 11 (negative) |
Aplicações típicas
MAX12553ETL+TG3U é adequado para 6 aplicaçãos: Digital Oscilloscope and Data Acquisition Front End, IF-Sampling Software-Defined Radio Receiver, Medical Ultrasound Beamformer, CCD/CIS Imaging Pipeline Digitizer, Point-to-Point Microwave Backhaul Baseband Digitizer, Industrial Test and Measurement Instrumentation.
Digital Oscilloscope and Data Acquisition Front End
The MAX12553ETL+TG3U's 14-bit 65 Msps pipeline and wide input bandwidth make it a strong fit for 1-channel digital oscilloscope and data acquisition front ends, where it digitizes the post-attenuation analog signal with sufficient vertical resolution to resolve small signal features. The on-chip track-and-hold and internal common-mode reference eliminate a separate level-shift op-amp in the front end, reducing BOM and noise. The LVDS 14-bit parallel interface couples cleanly to an FPGA capture FIFO, and the 3.3 V supply aligns with mainstream low-power FPGA rails. Designers should drive the analog input with a low-noise fully-differential amplifier (e.g., MAX4108) and provide a low-jitter clock to preserve ENOB at high input frequencies.
Recomendado
IF-Sampling Software-Defined Radio Receiver
In software-defined radio receivers, the MAX12553ETL+TG3U serves as the IF digitizer, undersampling a high intermediate frequency directly to baseband. The combination of 14-bit resolution, 65 Msps sample rate, and wide input bandwidth allows the ADC to capture IFs of 30-150 MHz without an additional downconversion stage, simplifying the analog signal chain. The on-chip duty-cycle equalizer accommodates non-50% clocks from common FPGA/ASIC sources, easing timing closure. Place the ADC close to a low-jitter clock oscillator and decouple AVDD/DVDD separately to achieve the SNR required for narrowband demodulation in field-deployed SDR platforms.
Recomendado
Medical Ultrasound Beamformer
Ultrasound beamformers digitize each channel's echo return with a high-speed ADC, then apply time-domain delay-and-sum beamforming in a downstream FPGA. The MAX12553ETL+TG3U's 65 Msps sample rate, 14-bit resolution, and low latency pipelined architecture are well matched to mid-tier ultrasound systems operating at 5-10 MHz carrier frequencies. The on-chip track-and-hold and reference reduce per-channel analog complexity, and the LVDS interface simplifies multi-channel routing on the dense beamformer PCB. The -40 C to +85 C industrial temperature range suits portable cart-based ultrasound equipment where thermal management must be conservative.
Recomendado
CCD/CIS Imaging Pipeline Digitizer
In linear CCD and CIS (CMOS image sensor) imaging pipelines, the MAX12553ETL+TG3U digitizes the analog video output of the sensor at pixel-clock rates up to 65 Msps. The 14-bit resolution preserves dynamic range for scientific and machine-vision cameras, while the differential analog input with internal common-mode reference simplifies the interface to single-ended CCD outputs via a single in-amp. The on-chip duty-cycle equalizer accepts the irregular pixel clocks often generated by sensor timing controllers, avoiding the need for a precision clock generator. The small 6 mm x 6 mm TQFN package allows high-density multi-channel boards for line-scan cameras.
Recomendado
Point-to-Point Microwave Backhaul Baseband Digitizer
In point-to-point microwave backhaul radios, the MAX12553ETL+TG3U digitizes the I/Q baseband after the I/Q demodulator, providing the digital samples for forward error correction and modulation. Its 14-bit resolution supports 256-QAM and higher modulation orders, and the 65 Msps rate comfortably covers baseband bandwidths of 30-40 MHz. The LVDS interface reduces EMI emissions, which is critical for dense multi-radio outdoor units where FCC/ETSI spurious emissions must be controlled. The industrial temperature range suits outdoor enclosures with passive or forced-air cooling.
Recomendado
Industrial Test and Measurement Instrumentation
Bench-top and rack-mounted test instruments such as spectrum analyzers, signal analyzers, and arbitrary waveform digitizers require wide-bandwidth, high-linearity ADCs. The MAX12553ETL+TG3U's low INL/DNL, 14-bit resolution, and 65 Msps rate suit mid-bandwidth instrumentation front ends, where it follows a low-noise amplifier and anti-alias filter. The exposed-pad TQFN package provides a low thermal-resistance path to the PCB, allowing the ADC to operate at full speed without external heatsinking in well-ventilated instruments. Designers can pair it with a precision reference for absolute-accuracy applications or use the on-chip reference for compact designs.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MAX12553ETL+TG3U — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MAX12553ETL+G3U | MAX12554ETL+ | MAX12555ETL+ |
|---|---|---|---|---|
| Brand | Analog Devices (Maxim Integrated) | Analog Devices (Maxim Integrated) | Analog Devices (Maxim Integrated) | Analog Devices (Maxim Integrated) |
| Package | 40-pin TQFN-EP (6x6mm) | 40-pin TQFN-EP (6x6mm) - same | 40-pin TQFN-EP (6x6mm) - same | 40-pin TQFN-EP (6x6mm) - same |
| Resolution | 14 bit | 14 bit | 14 bit | 14 bit |
| Max Sample Rate | 65 Msps | 65 Msps | 80 Msps | 95 Msps |
| Channels | 1 | 1 | 1 | 1 |
| Supply Voltage | 3.3 V | 3.3 V | 3.3 V | 3.3 V |
| Output Interface | LVDS Parallel 14-bit | LVDS Parallel 14-bit | LVDS Parallel 14-bit | LVDS Parallel 14-bit |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Principais diferenciais
- On-chip duty-cycle equalizer (vs MAX12554ETL+)
- Single 3.3 V supply with LVDS output (vs AD9248BSTZ-65)
- Compact 6x6 mm TQFN-EP package (vs AD9248 (64-pin LQFP))
Notas de projeto
Decouple AVDD and DVDD with separate 0.1 uF and 10 uF ceramic capacitor networks placed as close as possible to the respective supply pins, and use a ferrite bead or small series resistor to isolate analog and digital supply rails. The MAX12553 draws both analog and digital current from a 3.3 V supply; if the upstream regulator has poor high-frequency PSRR, the residual switching noise will couple into the analog input and degrade SNR. A dedicated low-noise LDO (such as the MAX8881) is recommended for AVDD in SNR-sensitive applications.
The exposed pad (EP) of the 40-pin TQFN package must be soldered to a clean analog ground plane that is contiguous under the IC. The EP serves as both the primary ground reference and the main thermal dissipation path; an unsoldered or poorly connected EP will increase junction temperature and may cause timing errors or reduced SNR. Use multiple thermal vias in the EP land pattern to spread heat into inner ground layers, and keep high-speed digital LVDS traces on the opposite side of the board to minimize coupling into the analog input.
Clock jitter directly limits the achievable SNR of the MAX12553 at high analog input frequencies: SNR = 6.02 * ENOB + 1.76 dB, and the SNR ceiling is set by aperture jitter as 20*log10(1 / (2*pi*fIN*jitter)). For a 70 MHz IF input, an aperture jitter of 1 ps yields ~63 dBFS SNR. Use a low-jitter crystal oscillator (such as a clean CMOS or PECL oscillator with <1 ps jitter) and route the clock with a 50 ohm controlled-impedance trace, kept short and away from the analog input. The internal duty-cycle equalizer accepts non-50% clocks but does not compensate for jitter.
Route the 14 LVDS output pairs as 100 ohm differential pairs with length matching within 5 mils (0.13 mm) to minimize inter-symbol skew. Keep the LVDS output bus on the opposite side of the PCB from the analog input, with a continuous ground plane between them to provide shielding. Use a series 100 ohm termination at the receiver (typically the FPGA LVDS pins) rather than at the ADC, to absorb reflections. Avoid routing LVDS signals over plane splits, which force return currents through large loops and increase EMI.
Common pitfalls when using the MAX12553 include: (1) driving the analog input single-ended without a DC-blocking and bias network - the input is differential and requires the internal common-mode voltage to be present, (2) using a long, uncontrolled-impedance clock trace that injects jitter, (3) failing to solder the exposed pad, leading to thermal shutdown at high sample rates, and (4) not providing a stable REFOUT bypass capacitor (typically 0.1 uF plus 10 uF). Always consult the manufacturer datasheet reference design and evaluation kit layout when laying out the PCB.
Informações de conformidade
RoHS, REACH, lead-free, and halogen-free status not present in the verified web data; set to unknown. AEC-Q100 not applicable - this is a commercial/industrial-grade ADC, not an automotive-qualified part. Designers requiring automotive-grade should contact Analog Devices for MAX12553ETL+TG3U-AEC variants if available.
