My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX1282BCUE+T
- Part No.:
- MAX1282BCUE+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1282BCUE+T.pdf
- Description:
- IC ADC 12BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,467
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX1282BCUE+T from Maxim Integrated is a 12-bit, 4-channel serial analog-to-digital converter (ADC) with internal +2.5V reference, 400ksps sampling rate, and single +4.5V to +5.5V supply operation. It integrates a track/hold circuit, software-configurable unipolar/bipolar and single-ended/pseudo-differential input modes, and SPI/QSPI/MICROWIRE-compatible 4-wire serial interface - used in portable data loggers and battery-powered medical instruments.
For engineers reviewing the MAX1282BCUE+T datasheet, MAX1282BCUE+T pinout, MAX1282BCUE+T application, or MAX1282BCUE+T equivalent, key selection criteria include its 400ksps throughput at 2.5mA supply current, ±1 LSB INL over 0°C to +70°C, TSSOP-16 package compatibility, and support for pseudo-differential channel pairs (CH0/CH1, CH2/CH3).
Technical Context
The MAX1282BCUE+T employs successive-approximation register (SAR) architecture with integrated track/hold and 4-channel analog multiplexer. Its conversion timing is fully clocked by an external SCLK (up to 6.4MHz), with acquisition time fixed at 400ns and conversion time of 2.5µs per sample.
It supports four software-selectable power modes (normal, REDP, FASTPD, FULLPD) and features a reference-buffer amplifier with ±1.5% REFADJ adjustment range. The device uses a hardwired SHDN pin and automatically powers up on serial interface access, enabling low-duty-cycle operation between conversions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR ADC - delivers 4096 discrete output codes with monotonic transfer function and no missing codes over temperature. |
| Sampling Rate | 400ksps - enables real-time capture of signals up to 200kHz full-linear bandwidth (–3dB point) with SINAD > 68dB. |
| INL / DNL | ±1 LSB INL, ±1 LSB DNL - ensures accurate end-point calibration and linearity-critical applications like process control transducers. |
| Reference | Internal +2.500V ±0.8mV (±0.032%) - stable over temperature (±15ppm/°C), adjustable via REFADJ pin; external reference also supported (1V to VDD). |
| Supply Current | 2.5mA at 400ksps - scales down to 0.9mA (FASTPD) and 2µA (FULLPD), critical for battery life in portable instrumentation. |
| Input Configuration | Software-selectable 4-channel single-ended or 2-channel pseudo-differential - supports CH0/CH1 and CH2/CH3 differential pairs with COM as common reference. |
| Operating Temp | 0°C to +70°C - specified performance guaranteed across industrial ambient range without derating. |
Pinout & Package
MAX1282BCUE+T is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad for thermal enhancement. Pin functions are validated per Maxim's 19-1688 Rev 0 datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 | Positive supply inputs | Must be tied together and decoupled; VDD1 powers analog core, VDD2 powers digital interface - both require 4.5V–5.5V for MAX1282BCUE+T operation. |
| CH0–CH3 | Analog input channels | Single-ended inputs referenced to COM; in pseudo-differential mode, CH0/CH1 and CH2/CH3 form differential pairs - input voltage range: GND to VDD1. |
| COM | Common-mode reference | Sets zero-code voltage in single-ended mode; must remain stable within ±0.5LSB (±0.1LSB for best accuracy) during conversion. |
| REF | Reference buffer output / external ref input | Provides 2.500V nominal output when internal reference enabled; disable buffer by pulling REFADJ to VDD1 to use external reference (1V–VDD). |
| REFADJ | Reference adjust input | Allows ±1.5% fine-tuning of internal reference; bypass with 0.01µF capacitor to GND; threshold for buffer disable is VDD1 – 1.0V. |
| SCLK, DIN, DOUT, CS, SSTRB | Serial interface signals | 4-wire SPI-compatible interface: CS active-low enables communication; SCLK up to 6.4MHz clocks 8-bit control byte and 12-bit result; SSTRB pulses before MSB for DSP synchronization. |
| SHDN | Hardware shutdown control | Active-low pin reduces supply current to 2µA (typ); overrides software power modes and forces full power-down regardless of PD bits. |
| GND | Analog/digital ground | Single ground plane recommended; pin 10 serves as primary return for analog and digital sections - critical for noise-sensitive ADC performance. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated track/hold + multiplexer | Eliminates need for external T/H circuitry; 400ns acquisition time enables high-fidelity sampling of fast-rising sensor outputs. |
| Four software-selectable power modes | Enables dynamic power scaling: 2.5mA (normal), 1.3mA (REDP), 0.9mA (FASTPD), 2µA (FULLPD) - ideal for duty-cycled data acquisition systems. |
| Pseudo-differential input architecture | Supports true differential measurements (CH0–CH1, CH2–CH3) while retaining single-ended simplicity - improves CMRR without requiring matched external components. |
| SPI/QSPI/MICROWIRE/TMS320 compatibility | Direct connection to microcontrollers and DSPs without level shifters or glue logic; SSTRB output synchronizes with MSB for deterministic timing in real-time control loops. |
| Internal +2.5V reference with ±1.5% adjustability | Reduces BOM count and layout area; REFADJ allows system-level gain calibration; ±15ppm/°C TC ensures stability across operating temperature range. |
Applications
| Portable Data Logging | Medical Instrumentation |
|---|---|
|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 100Hz intervals over 72-hour deployments. IC Role / Device Role / Timing Role: Primary ADC digitizing four analog sensor outputs sequentially; internal reference eliminates need for precision external voltage source. Use Value: 2.5mA active current and 2µA shutdown current extend battery life; 400ksps headroom supports burst-mode diagnostics without firmware change. |
Use Scenario: Handheld ECG monitor acquiring lead-II and lead-III signals with simultaneous respiration and SpO₂ analog inputs. IC Role / Device Role / Timing Role: Front-end ADC providing 12-bit resolution and pseudo-differential mode to reject common-mode noise from electrode interfaces. Use Value: ±1 LSB INL ensures diagnostic-grade amplitude fidelity; COM pin stability requirement (<±0.5LSB) aligns with clinical signal integrity standards. |
| Battery-Powered Test Equipment | Industrial Process Control |
|
Use Scenario: Portable multimeter with auto-ranging analog front-end measuring DC voltage, AC RMS, and resistance using shared channel resources. IC Role / Device Role / Timing Role: Configurable 4-channel ADC supporting unipolar (voltage) and bipolar (current loop) input ranges via software control. Use Value: Single-supply +4.5V to +5.5V operation simplifies power design; REFADJ pin enables factory calibration to compensate for PCB trace resistance errors. |
Use Scenario: PLC analog input module conditioning 4–20mA transmitter signals from flow, pressure, and temperature sensors in hazardous-area enclosures. IC Role / Device Role / Timing Role: High-accuracy ADC interfacing to isolated current-to-voltage converters; internal reference reduces calibration drift vs. external references. Use Value: ±6.0 LSB gain error (max) and ±6.0 LSB offset error (max) meet Class 0.1 industrial accuracy requirements; TSSOP package supports compact modular I/O card layouts. |
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 |
|---|---|---|---|
| ADS7816U | 8-pin SOIC, 200ksps, no internal reference, requires external 2.5V ref; 1.5mW typical power at 200ksps. | Limited to single-channel input; lacks multiplexer, track/hold, and software-configurable modes - suitable only for simple point-measurement tasks. | Select when board space is constrained and system already provides precision reference; not drop-in due to pin count, channel count, and feature set mismatch. |
| MAX11100ETE+ | TQFN-16, 1MSPS, internal 4.096V reference, 2.5V–3.6V supply only; supports 8-channel scan mode. | Higher speed and resolution but incompatible supply range (2.5V–3.6V vs. 4.5V–5.5V); different reference voltage complicates signal chain scaling. | Choose for higher throughput in low-voltage systems; MAX1282BCUE+T remains preferred for 5V legacy designs requiring proven 0°C–+70°C reliability. |
Compared with ADS7816U and MAX11100ETE+, the MAX1282BCUE+T uniquely balances 400ksps throughput, integrated reference, 4-channel flexibility, and 5V single-supply operation - making it optimal for cost-sensitive, space-constrained portable instrumentation where full-feature integration reduces total solution size and validation effort.
Availability
MAX1282BCUE+T is available at Aetrix Electronics and suitable for portable data logging, battery-powered medical devices, and industrial process monitoring requiring stable component supply across extended production lifecycles.
Supply support for MAX1282BCUE+T 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) is a fabless semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX1282/MAX1283 family was designed for portable, low-power, multi-channel data acquisition systems requiring integrated reference, flexible input configuration, and robust serial interface - targeting applications where size, power, and accuracy must coexist.
FAQ
What is the maximum serial clock frequency supported by MAX1282BCUE+T?
The MAX1282BCUE+T supports a maximum SCLK frequency of 6.4MHz under standard operating conditions (VDD = 4.5V–5.5V, TA = 0°C to +70°C). This enables the full 400ksps sampling rate with 16 clock cycles per conversion. Exceeding 6.4MHz may cause timing violations in the internal SAR logic or reduced AC performance due to aperture jitter increase.
Does MAX1282BCUE+T support true differential input mode?
No, the MAX1282BCUE+T implements pseudo-differential input architecture: only the positive input (IN+) is actively sampled, while the negative input (IN−) is held stable during conversion. True differential sampling (simultaneous IN+/IN− capture) is not supported. Differential operation is limited to CH0/CH1 and CH2/CH3 channel pairs with COM as reference.
Can MAX1282BCUE+T operate with an external reference voltage?
Yes, MAX1282BCUE+T supports external reference operation. To enable it, pull REFADJ to VDD1 to disable the internal reference buffer, then apply a stable 1.0V to VDD voltage to the REF pin. Performance specifications (e.g., INL, gain error) assume the external reference meets noise and stability requirements outlined in the datasheet - deviations degrade effective resolution.
What is the purpose of the SSTRB pin on MAX1282BCUE+T?
The SSTRB (Serial Strobe) pin on MAX1282BCUE+T pulses high for one SCLK period immediately before the MSB of the conversion result appears on DOUT. This strobe enables precise synchronization with TMS320-family DSPs and other controllers that require deterministic data-valid timing - eliminating need for additional edge-detection logic or software polling delays.
How does the SHDN pin interact with software power modes in MAX1282BCUE+T?
The SHDN pin on MAX1282BCUE+T is hardware-override: when pulled low, it forces immediate entry into full power-down mode (2µA supply current), regardless of software-configured PD bits or active conversion state. Releasing SHDN returns the device to its last software-selected power mode - making it ideal for system-level sleep/wake coordination independent of firmware state.
MAX1282BCUE+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 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:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1282BCUE+T FAQ
1.How can I place an order for MAX1282BCUE+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1282BCUE+T 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+T reliable?
The price and inventory of MAX1282BCUE+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1282BCUE+T is usually 5 days.
3.What payment methods are accepted for MAX1282BCUE+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1282BCUE+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1282BCUE+T?
MAX1282BCUE+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1282BCUE+T 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+T?
For technical support, including MAX1282BCUE+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1282BCUE+T requirements.
6.How does Aetrix verify that MAX1282BCUE+T is sourced from the original manufacturer or authorized distributors?
All MAX1282BCUE+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX1282BCUE+T?
All MAX1282BCUE+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX1282BCUE+T, 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+T part is unused and in its original packaging.
Return procedure for MAX1282BCUE+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX1282BCUE+T Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
