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Analog Devices Inc./Maxim Integrated MAX1282BCUE
- Part No.:
- MAX1282BCUE
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1282BCUE.pdf
- Description:
- 4-CHANNEL, SERIAL 12-BIT ADC
- Quantity:
- Payment:
- Shipping:
Inventory:442
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Product details
Overview
MAX1282BCUE from Maxim Integrated is a 12-bit, 4-channel, single-supply analog-to-digital converter (ADC) with internal +2.5V reference, 400ksps sampling rate, and SPI/QSPI/MICROWIRE-compatible 4-wire serial interface. It operates from +4.5V to +5.5V, supports software-configurable unipolar/bipolar and single-ended/pseudo-differential inputs, and targets portable data acquisition in battery-powered instrumentation.
For engineers reviewing the MAX1282BCUE datasheet, MAX1282BCUE pinout, MAX1282BCUE application, or MAX1282BCUE equivalent, this page delivers verified technical context, real-world timing and accuracy specs, TSSOP-16 package details, and validated alternative options for industrial and medical signal conditioning designs.
Technical Context
The MAX1282BCUE implements successive-approximation register (SAR) architecture with integrated track/hold and 4-channel analog multiplexer. Its conversion cycle requires 16 SCLK periods at up to 6.4MHz, delivering 400ksps throughput with ±1 LSB INL and ±1 LSB DNL over 0°C to +70°C.
It features four programmable power modes (normal, REDP, FASTPD, FULLPD), hardwired SHDN pin, and reference buffer with ±1.5% REFADJ adjustment range. The device accepts external references from 1V to VDD and supports pseudo-differential input pairs CH0/CH1 and CH2/CH3 with COM as common reference.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit - delivers 4096 discrete output codes for high-fidelity sensor digitization |
| Sampling Rate | 400ksps - enables real-time capture of signals up to 200kHz full-linear bandwidth |
| INL / DNL | ±1 LSB - ensures monotonicity and <0.025% integral error across full temperature range |
| Supply Voltage | +4.5V to +5.5V - compatible with standard 5V logic rails and industrial power domains |
| Reference | Internal +2.5V ±0.5% - eliminates need for external precision reference in cost-sensitive designs |
| Power Modes | Four selectable (FULLPD = 2µA) - allows dynamic current scaling between conversions for extended battery life |
| SINAD | 70dB at 100kHz - supports accurate measurement of low-distortion analog waveforms |
Pinout & Package
MAX1282BCUE is housed in a 16-pin Thin Shrink Small Outline Package (TSSOP) with 0.65mm pitch, JEDEC MO-153 compliant, and rated for 0°C to +70°C operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Positive supply inputs | Must be tied together and decoupled locally; dual pins reduce supply impedance and improve PSR |
| GND | Analog/digital ground reference | Single ground plane required; COM must remain stable to ±0.5LSB relative to GND during conversion |
| CH0–CH3, COM | Analog input channels and common reference | Supports 4 single-ended or 2 pseudo-differential inputs; COM sets zero-code voltage in unipolar mode |
| REF, REFADJ | Reference buffer output and adjustment terminal | REF provides 2.500V ±0.5%; REFADJ allows ±1.5% fine-tuning or disables buffer when pulled to VDD1 |
| SCLK, DIN, DOUT, CS, SSTRB | 4-wire serial interface signals | Direct SPI/QSPI/MICROWIRE compatibility; SSTRB enables TMS320 DSP synchronization without glue logic |
| SHDN | Hardware shutdown control | Active-low input reduces supply current to 2µA (typ); automatic wake-up occurs on CS assertion |
Key Features
| Feature | Design Value |
|---|---|
| 4-channel analog multiplexer + track/hold | Enables sequential sampling of multiple sensors without external signal routing or hold capacitors |
| Software-configurable input mode | Single-ended or pseudo-differential operation selected via serial control byte - no hardware changes needed |
| Internal reference buffer with REFADJ | Eliminates external reference IC; ±1.5% adjustability compensates for system-level gain drift |
| Low-power operation (2.5mA @ 400ksps) | Reduces thermal load in dense PCB layouts and extends runtime in portable medical instruments |
| 16-pin TSSOP package | Compact 5mm × 4.4mm footprint supports high-density mixed-signal board designs with minimal layout area |
Applications
| Portable Data Logging | Medical Instrumentation |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 100Hz intervals. IC Role / Device Role / Timing Role: ADC front-end digitizing four analog sensor outputs with internal reference and low-power sleep modes between samples. Use Value: 2.5mA active current and 2µA full shutdown enable >1-year battery life on two AA cells while maintaining 12-bit resolution. |
Use Scenario: Handheld ECG monitor acquiring lead I, II, III, and AVR signals with baseline stability and noise immunity. IC Role / Device Role / Timing Role: Pseudo-differential ADC rejecting common-mode interference from body-coupled noise sources. Use Value: ±0.2 LSB channel-to-channel offset matching ensures consistent amplitude scaling across all leads without per-channel calibration. |
| Battery-Powered Instruments | Process Control Sensors |
|
Use Scenario: Field-deployable pH/ORP meter requiring precision analog input, low self-heating, and wide supply tolerance. IC Role / Device Role / Timing Role: Single-supply ADC operating from 4.5V–5.5V with internal 2.5V reference, eliminating external LDO dependency. Use Value: ±15ppm/°C REF temperature coefficient ensures <0.01% full-scale drift over 0°C–70°C operating range. |
Use Scenario: Industrial PLC analog input module measuring 4–20mA loop signals from pressure, flow, and level transmitters. IC Role / Device Role / Timing Role: High-accuracy ADC with 70dB SINAD and 76dB IMD supporting multi-channel simultaneous sampling in noisy factory environments. Use Value: 76dB channel-to-channel crosstalk prevents signal bleed between adjacent 4–20mA channels during multiplexed acquisition. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 2.7V–5.25V supply, 200ksps, no internal reference, requires external 2.5V ref | Lacks integrated reference and REFADJ; better suited for systems already using precision external reference | Select when reference sharing across multiple ADCs is required and board space permits external ref IC |
| AD7490BRUZ | 2.7V–5.25V supply, 1MSPS, internal 2.5V ref, 16-channel mux, SPI interface | Higher speed and channel count but larger 24-lead TSSOP package and higher 3.5mA typical supply current | Choose when expanding to >4 channels or requiring >400ksps throughput without sacrificing resolution |
Compared with ADS7822U and AD7490BRUZ, MAX1282BCUE offers optimal balance of integrated reference, low 2.5mA active current, compact 16-pin TSSOP, and guaranteed ±1 LSB linearity - making it ideal for space-constrained, battery-aware 4-channel data loggers where external reference overhead is undesirable.
Availability
MAX1282BCUE is available at Aetrix Electronics and suitable for portable data logging, medical instrumentation, and battery-powered instruments requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MAX1282BCUE includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX1282BCUE belongs to Maxim's high-accuracy, low-power SAR ADC product line, engineered specifically for portable and battery-operated measurement systems needing integrated reference and flexible input configuration.
FAQ
What is the operating temperature range for MAX1282BCUE?
The MAX1282BCUE is specified for operation from 0°C to +70°C. This commercial-grade temperature range is explicitly defined in the ordering information table for the MAX1282BCUE variant and confirmed by absolute maximum ratings and electrical characteristics test conditions. The 'C' suffix denotes this grade, distinguishing it from the 'E' grade (-40°C to +85°C) versions like MAX1282BEUE.
Does MAX1282BCUE include an internal voltage reference?
Yes, MAX1282BCUE integrates a precision +2.500V ±0.5% internal reference with a dedicated REF pin and adjustable REFADJ terminal. The reference buffer supports ±1.5% voltage adjustment and can be disabled by pulling REFADJ to VDD1, enabling use of an external reference from 1V to VDD. This eliminates the need for external reference ICs in most applications.
What serial interface protocols does MAX1282BCUE support?
MAX1282BCUE supports SPI, QSPI, and MICROWIRE protocols via its 4-wire serial interface (SCLK, DIN, DOUT, CS). It requires CPOL = 0 and CPHA = 0 for SPI compatibility and includes SSTRB for direct TMS320-family DSP synchronization. No external logic is needed for interface translation.
How many analog input channels does MAX1282BCUE provide?
MAX1282BCUE provides four analog input channels (CH0–CH3) plus a common (COM) terminal, supporting either four single-ended inputs or two pseudo-differential pairs (CH0/CH1 and CH2/CH3). Channel selection is controlled via an 8-bit serial command word, and the input configuration (unipolar/bipolar, single-ended/pseudo-differential) is software configurable.
What power-saving modes are available on MAX1282BCUE?
MAX1282BCUE offers four software-selectable power modes: normal operation (2.5mA), reduced power (REDP, 1.3mA), fast power-down (FASTPD, 0.9mA), and full power-down (FULLPD, 2µA). Additionally, it features a hardwired SHDN pin for hardware-initiated shutdown. Serial interface access automatically wakes the device from any power-down state.
MAX1282BCUE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 400k
- Number of Inputs:
- 2, 4
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- 4-Wire Serial, Microwire, QSPI, SPI
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 4.5V ~ 5.5V
- Voltage - Supply, Digital:
- 4.5V ~ 5.5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1282BCUE FAQ
1.How can I place an order for MAX1282BCUE through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1282BCUE on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX1282BCUE reliable?
The price and inventory of MAX1282BCUE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1282BCUE is usually 5 days.
3.What payment methods are accepted for MAX1282BCUE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1282BCUE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1282BCUE?
MAX1282BCUE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1282BCUE order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX1282BCUE?
For technical support, including MAX1282BCUE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1282BCUE requirements.
6.How does Aetrix verify that MAX1282BCUE is sourced from the original manufacturer or authorized distributors?
All MAX1282BCUE products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX1282BCUE meets industry standards.
7.What is the process for return or replacement of MAX1282BCUE?
All MAX1282BCUE units undergo pre-shipment inspection (PSI). If there is an issue with MAX1282BCUE, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX1282BCUE part is unused and in its original packaging.
Return procedure for MAX1282BCUE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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