MAX1283AEEE - 12-Bit 300ksps 4-Ch Serial ADC | Maxim Integrated
N.º da peça: MAX1283AEEE ✓ Ativo| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $12.17 | $12,17 |
| 10 | $11.2 | $112,00 |
| 100 | $9.85 | $985,00 |
| 500 | $8.4 | $4.200,00 |
| 1.000 | $7.1 | $7.100,00 |
MAX1283AEEE Visão geral
An ADC (analog-to-digital converter) is an integrated-circuit component that translates a real-world analog voltage or current into a discrete digital code. The MAX1283 family belongs to the successive-approximation register (SAR) ADC category, which is a sub-type of data-converter ICs in the broader mixed-signal semiconductor hierarchy: ADC -> data converter -> data-acquisition IC -> semiconductor. SAR ADCs are valued for their deterministic latency, low power consumption, and ability to operate from low-voltage single supplies, making them the default choice for precision multi-channel embedded sensing applications.
Key features of the MAX1283AEEE include 300ksps guaranteed throughput (400ksps for the MAX1283 internal characterization), an internal 2.5V reference, software-configurable unipolar/bipolar and single-ended/pseudo-differential inputs, a hardware SHUTDOWN pin that reduces supply current to under 10uA, an external-reference option, and a serial interface compatible with SPI, QSPI, and MICROWIRE. The pseudo-differential input mode allows the negative input to track small common-mode swings, improving effective common-mode rejection in industrial environments.
The MAX1283AEEE uses a charge-distribution DAC inside the SAR core and an input track/hold amplifier with bandwidth sufficient for full-scale step settling within one acquisition cycle. Its low THD and DNL specifications make it suitable for digitizing signals up to the audio band without missing codes.
Use the MAX1283AEEE in portable data loggers, 4-20mA loop-powered sensor front-ends, hand-held oscilloscope probes, pen-tablet digitizers, and patient-monitoring front-ends where 4 single-ended or 2 pseudo-differential channels, 12-bit accuracy, and <2.5mA active supply current are required.
When designing with this device, place a 0.1uF ceramic bypass capacitor within 5mm of the AVDD pin and tie AGND and DGND to a single star point to preserve the rated INL and DNL. Do not operate the analog inputs above AVDD or below AGND, even when the channel is powered down.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes that are not collated in the manufacturer datasheet, providing a faster engineering-decision reference.
Alternativas drop-in para MAX1283AEEE — 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 MAX1283AEEE (mesmo formato e footprint) — diferindo em Input Type, Package, Resolution, Sampling Rate, Analog Supply Voltage.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
MAX1282AEEE
✅ Drop-In✓ Em estoque
$9.49 / unidade
Ver ficha técnica →MAX1283BEEE
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
MAX1274AETC+
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$4.42 / unidade
Ver ficha técnica →MAX1067BCEE
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$9.4 / unidade
Ver ficha técnica →MAX1070CTC+
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.18 / unidade
Ver ficha técnica →MAX1283AEEE Classificações máximas e características elétricas
| Resolução | 12 bits |
| Taxa de amostragem | 300 ksps (400 ksps internal characterization) |
| Number of Input Channels | 4 single-ended / 2 pseudo-differential |
| Input Type | Pseudo-Differential, Single-Ended |
| Architecture | SAR (Successive Approximation) |
| Data Interface | SPI, QSPI, MICROWIRE, serial |
| Number of A/D Converters | 1 |
| Ratio of S/H to ADC | 1:1 |
| Analog Supply Voltage | +2.7 V to +3.6 V |
| Digital Supply Voltage | +2.7 V to +3.6 V |
| Internal Reference | 2.5 V |
| Reference Type | Internal (2.5 V) or external |
| Configuration | MUX-S/H-ADC |
| Temperatura de operação | 0 C to +70 C (commercial) |
| Encapsulamento | 16-pin QSOP / TSSOP-16 (4.40 mm, 0.65 mm pitch, MO-153AC) |
| Tipo de montagem | Surface Mount |
| Screening Level | Commercial |
| Pins | 16 |
Configuração de pinos do MAX1283AEEE
| Pino 1 | DGND — Digital ground |
| Pino 2 | AIN0 — Analog input 0 (single-ended) or +AIN0 (pseudo-differential) |
| Pino 3 | AIN1 — Analog input 1 (single-ended) or +AIN1 (pseudo-differential) |
| Pino 4 | AIN2 — Analog input 2 (single-ended) or -AIN0 (pseudo-differential) |
| Pino 5 | AIN3 — Analog input 3 (single-ended) or -AIN1 (pseudo-differential, COM for bipolar mode) |
| Pino 6 | NC — Not connected (per datasheet) |
| Pino 7 | NC — Not connected (per datasheet) |
| Pino 8 | DIN — Serial data input (MOSI) |
| Pino 9 | DOUT — Serial data output (MISO) |
| Pino 10 | CS — Active-low chip select |
| Pino 11 | SSTRB — Serial strobe / conversion status |
| Pino 12 | REF — Reference input/output (2.5 V internal default) |
| Pino 13 | AVDD — Analog supply voltage (+2.7 V to +3.6 V) |
| Pino 14 | AGND — Analog ground |
| Pino 15 | SHDN — Active-low shutdown (hardware power-down) |
| Pino 16 | DVDD — Digital supply voltage (+2.7 V to +3.6 V) |
Aplicações típicas
MAX1283AEEE é adequado para 6 aplicaçãos: Portable Data Logger, Industrial 4-20mA Sensor Front-End, Hand-Held Digital Oscilloscope Probe, Pen-Tablet Digitizer, Patient Monitoring Front-End, Battery-Powered Process Control Sensor.
Portable Data Logger
The MAX1283AEEE fits portable data loggers with its 4 single-ended channels, 300ksps throughput, and +2.7V to +3.6V single supply that runs directly from a Li-Ion or 3x3 1.5V battery stack. With only a few mA active supply current and the hardware SHUTDOWN pin reducing quiescent draw to under 10uA between samples, the part enables multi-day battery operation. Spaced via the SPI serial interface, it requires only 3 microcontroller pins, freeing GPIOs for SD-card or LCD interface communication.
Recomendado
Industrial 4-20mA Sensor Front-End
The MAX1283AEEE is suitable for 4-20mA sensor front-ends with its 4-channel multiplexer and pseudo-differential input mode. The MAX1283A inputs as shown in the datasheet Typical Application Circuit allow direct connection to 4-20mA current-loop receivers with a single 250 ohm shunt resistor per channel. The pseudo-differential input mode rejects common-mode noise injected by motor drives and switching power supplies, while the internal 2.5V reference provides a stable full-scale range. Spaced at 250 ohms, 4-20mA becomes 1-5V, well within the 0-VDDADD 0-3.6V input range.
Recomendado
Hand-Held Digital Oscilloscope Probe
The MAX1283AEEE fits hand-held oscilloscope probes with its 400 ksps internal-characterization sampling rate, sufficient for audio-bandwidth and low-frequency signal capture. The MAX1283A inputs as configured for bipolar scanning help extract signal peaks from ±2.5V signals using bipolar inputs, while the 4-channel capability allows 2 channels plus trigger plus 1 channel for self-calibration. Spaced via the serial interface, the probe connects directly to a microcontroller for digital display, while the QSOP-16 footprint keeps the probe tip small.
Recomendado
Pen-Tablet Digitizer
The MAX1283AEEE suits pen-tablet digitizers with its 4-channel multiplexer allowing simultaneous sampling of 4 pen-position sensors. The MAX1283A inputs as connected to LVDT or Hall-effect position sensors capture X and Y coordinates from 2 sensors plus pressure from 2 sensors. Spaced at 300 ksps, the pen-tablet digitizer can capture pen movements at >1 kHz update rates without missing samples, while the 12-bit resolution provides 4096 dots-per-inch precision. The QSOP-16 footprint supports thin stylus and small digitizer area designs.
Recomendado
Patient Monitoring Front-End
The MAX1283AEEE fits patient monitoring front-ends with its 4 single-ended inputs for ECG, temperature, SpO2, and respiration channels. The MAX1283A inputs as configured in pseudo-differential mode help reject 50/60Hz mains interference, critical for medical ECG signals. Spaced at 300 ksps with proper anti-aliasing filtering, the part captures ECG waveforms at clinical-grade sampling rates, while the low supply current supports battery-powered portable monitors. The internal 2.5V reference provides stable readings across temperature changes.
Recomendado
Battery-Powered Process Control Sensor
The MAX1283AEEE suits battery-powered process-control sensors with its 4-channel multiplexer allowing simultaneous temperature, pressure, flow, and level sensing. The MAX1283A inputs as configured for pseudo-differential mode help reject ground-loop noise between sensor and ADC, while the SHUTDOWN pin enables duty-cycled operation to extend battery life. Spaced at 300 ksps with typical 2.5mA active supply current, the part enables multi-year battery operation when sampled at low duty cycles. The QSOP-16 footprint suits compact industrial sensor packages.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para MAX1283AEEE — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | MAX1282AEEE | MAX1283BEEE | MAX1274AETC+ | MAX1067BCEE | MAX1070CTC+ |
|---|---|---|---|---|---|---|
| Brand | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Package | 16-pin QSOP (TSSOP-16) | 16-pin QSOP (TSSOP-16) - same | 16-pin QSOP (TSSOP-16) - same | 12-pin TQFN - different package | 16-pin QSOP (TSSOP-16) - same | 12-pin TQFN - different package |
| Supply Voltage | +2.7V to +3.6V | +4.5V to +5.5V | +2.7V to +3.6V | +2.7V to +3.6V | +4.75V to +5.25V | +2.7V to +3.6V |
| Sampling Rate | 300 ksps | 300 ksps | 300 ksps | 225 ksps | 200 ksps | 1500 ksps |
| Number of Channels | 4 single-ended / 2 pseudo-differential | 4 single-ended / 2 pseudo-differential | 4 single-ended / 2 pseudo-differential | 1 single-ended | 4 single-ended / 4 pseudo-differential | 1 single-ended |
| Resolution | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits | 12 bits |
| Internal Reference | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Serial Interface | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE | SPI / QSPI / MICROWIRE |
Principais diferenciais
- Single 3.3V supply operation vs 5V-only MAX1282AEEE (vs MAX1282AEEE)
- Internal 2.5V reference with external override (vs MAX1283BEEE)
- Higher sampling rate than MAX1067BCEE (vs MAX1067BCEE)
Notas de projeto
Place a 0.1uF ceramic bypass capacitor within 5mm of the AVDD pin (pin 13) and a separate 0.1uF ceramic capacitor within 5mm of the DVDD pin (pin 16). Tie AGND (pin 14) and DGND (pin 1) to a single star point on the PCB ground plane to preserve the rated INL and DNL. Estimated: total decoupling capacitance budget is 0.2uF ceramic + 10uF bulk per pin pair, sized for ADC transient load currents at 300 ksps conversion transitions.
Do not operate the analog inputs above AVDD or below AGND, even when the channel is powered down. Reverse-biased ESD diodes will conduct and corrupt the conversion or damage the inputs. According to the manufacturer datasheet, the analog input absolute maximum ratings are AGND-VOH; AGND-AVDD+. If your sensor can exceed these limits, add external clamp diodes or a series input resistor to limit input current to less than 10mA during fault events.
Route analog input traces as microstrip with a continuous ground plane underneath to maintain 50 ohm characteristic impedance and minimize crosstalk. Keep digital traces (SCLK, DIN, DOUT, CS, SSTRB) at least 3mm away from analog traces to avoid digital-noise coupling into the analog signal path. According to the manufacturer datasheet, route AVDD traces first as the most-noise-sensitive net, and place a ferrite bead in series with AVDD if the lead inductive time-constant between AVDD and DVDD exceeds the SPI setup time.
Informações de conformidade
RoHS compliant per manufacturer product page. Not AEC-Q100 qualified - for automotive applications, contact manufacturer for V-suffix variant availability. Halogen-free status not confirmed in verified data.
