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Analog Devices Inc./Maxim Integrated MAX1283BEUE+
- Part No.:
- MAX1283BEUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1283BEUE+.pdf
- Description:
- IC ADC 12BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,937
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Product details
Overview
MAX1283BEUE+ from Maxim Integrated is a 12-bit, 4-channel serial analog-to-digital converter (ADC) operating from a single +2.7V to +3.6V supply, featuring an internal +2.5V reference, 300ksps sampling rate, and software-configurable unipolar/bipolar pseudo-differential inputs. It integrates a track/hold circuit, 4-wire SPI/QSPI/MICROWIRE-compatible interface, and four power modes - including full power-down consuming only 2µA - for battery-powered data acquisition in medical instruments and portable logging systems.
For engineers reviewing the MAX1283BEUE+ datasheet, MAX1283BEUE+ pinout, MAX1283BEUE+ application, or MAX1283BEUE+ equivalent, this page delivers verified electrical specs, TSSOP-16 pin mapping, real-world use cases in pen digitizers and process control, and two validated alternative ADCs with documented functional and parametric differences.
Technical Context
The MAX1283BEUE+ employs successive-approximation register (SAR) architecture with integrated track/hold and analog input multiplexer. Its conversion timing is fully clocked by an external SCLK (up to 4.8MHz), with acquisition time of 625ns and conversion time of 3.3µs - both defined by 16 clock cycles per sample.
It supports dual reference configurations: internal 2.500V ±1.5% adjustable reference (via REFADJ) or external reference (1.0V to VDD). Input architecture enables pseudo-differential operation on CH0/CH1 and CH2/CH3 pairs, with COM as common-mode reference, requiring stability within ±0.5LSB during conversion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR - delivers 4096 discrete output codes with monotonic transfer function and no missing codes over temperature. |
| Sampling Rate | 300ksps - supports continuous high-speed acquisition at 3.3µs per conversion using 4.8MHz SCLK. |
| Supply Voltage | +2.7V to +3.6V single supply - enables direct integration into 3.3V embedded systems without level-shifting or auxiliary rails. |
| Reference | Internal +2.500V ±1.5% (adjustable via REFADJ) - eliminates need for external precision reference in cost-sensitive applications. |
| Power Consumption | 2.5mA typical in normal mode; 2µA in full power-down - extends battery life in portable instruments between conversions. |
| INL / DNL | ±1.0 LSB INL, ±1.0 LSB DNL - ensures accurate end-point calibration and linearity-critical measurements in medical sensors. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and automotive-adjacent environments without derating. |
Pinout & Package
MAX1283BEUE+ is housed in a 16-pin TSSOP package (4.4mm × 5.0mm, 0.65mm pitch) with exposed pad for thermal performance. Pin functions are electrically 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 locally; VDD2 powers digital core, VDD1 powers analog section - separation minimizes noise coupling. |
| GND | Analog/digital ground reference | Single ground plane required; COM and REFADJ stability depend on low-impedance GND return path. |
| CH0–CH3, COM | Analog input terminals | Support 4 single-ended or 2 pseudo-differential channels; COM sets zero-code voltage and must remain stable within ±0.5LSB. |
| REF, REFADJ | Reference buffer I/O | REF outputs 2.500V nominal; REFADJ adjusts output ±1.5% or disables buffer when pulled to VDD1 - enables external reference use. |
| SCLK, DIN, DOUT, CS, SSTRB | 4-wire serial interface | Fully compatible with SPI/QSPI/MICROWIRE masters; SSTRB provides strobe synchronized to MSB decision for DSP interfacing. |
| SHDN | Hardware shutdown control | Active-low input reduces supply current to 2µA; automatic wake-up occurs on CS assertion - no firmware overhead for power cycling. |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input mode | Unipolar or bipolar, single-ended or pseudo-differential - selected via 8-bit control byte, enabling flexible sensor interfacing without hardware changes. |
| Four programmable power modes | Normal (2.5mA), REDP (1.3mA), FASTPD (0.9mA), FULLPD (2µA) - allows dynamic power scaling based on sampling duty cycle in battery-operated devices. |
| Internal reference with adjustment | 2.500V ±1.5% output, adjustable via REFADJ pin - eliminates external reference IC and associated BOM cost while maintaining ±6LSB gain error spec. |
| Pseudo-differential architecture | CH0/CH1 and CH2/CH3 differential pairs with shared COM - rejects common-mode noise in noisy industrial environments without requiring matched external resistors. |
| Anti-aliasing-ready input bandwidth | 3MHz small-signal bandwidth - supports undersampling of higher-frequency transients while maintaining integrity up to Nyquist limit. |
Applications
| Portable Data Logging | Medical Instruments |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature, humidity, and pressure at 100Hz intervals over 72-hour deployment. IC Role / Device Role / Timing Role: ADC front-end digitizing four analog sensor outputs with internal reference and low-power sleep between samples. Use Value: 2µA full power-down current extends coin-cell lifetime beyond 12 months; 300ksps headroom accommodates burst-mode diagnostics. |
Use Scenario: Portable ECG monitor acquiring lead-I, lead-II, and lead-III signals with right-leg drive feedback loop. IC Role / Device Role / Timing Role: Simultaneous sampling of three differential biopotential channels using CH0/CH1, CH2/CH3, and COM-referenced analog front-end. Use Value: ±1.0 LSB INL ensures diagnostic-grade amplitude accuracy; pseudo-differential mode rejects 50/60Hz mains interference without external instrumentation amps. |
| Pen Digitizers | Process Control |
Use Scenario: Active stylus interface in tablet PCs measuring X/Y position and pressure via resistive touch overlay and force-sensing resistor. IC Role / Device Role / Timing Role: High-speed scanning of four analog electrodes (X+, X−, Y+, Y−) with configurable unipolar range and fast acquisition. Use Value: 625ns track/hold acquisition time enables sub-millisecond coordinate updates; SPI interface synchronizes with host processor DMA transfers. |
Use Scenario: Modular PLC analog input module conditioning 4–20mA current-loop signals from flow, pressure, and temperature transmitters. IC Role / Device Role / Timing Role: Isolated ADC channel digitizing conditioned voltage outputs from signal conditioners, with internal reference eliminating system-level reference drift. Use Value: -40°C to +85°C rating ensures reliability in uncontrolled cabinet environments; 3.6V max supply allows direct connection to 3.3V industrial backplane rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 8-pin SOIC, 200ksps, no internal reference (requires external 2.5V ref), 1.25mW @ 200ksps | Lacks REFADJ adjustability and pseudo-differential mode; simpler layout but higher BOM count | Choose when board space is constrained and external reference already exists in system. |
| MAX11131AUT+T | 12-bit, 500ksps, internal 2.048V ref, SPI-only (no QSPI/MICROWIRE), 1.8V–3.6V supply | Higher speed and lower voltage operation, but no SSTRB strobe for DSP sync and no SHDN pin | Prefer for ultra-low-voltage designs needing faster throughput, where DSP interface is not required. |
Compared with ADS7816U and MAX11131AUT+T, MAX1283BEUE+ uniquely combines QSPI/TMS320-compatible strobe output, adjustable internal reference, and hardware shutdown - making it optimal for portable, DSP-linked, and reference-integrated systems where pin count and power autonomy matter.
Availability
MAX1283BEUE+ is available at Aetrix Electronics and suitable for portable data logging, medical instrumentation, and industrial process control requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MAX1283BEUE+ 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 markets.
The MAX1282/MAX1283 family was designed specifically for low-power, multi-channel data acquisition in space-constrained, battery-operated systems - emphasizing integrated references, flexible input architectures, and seamless microcontroller interfacing.
FAQ
What is the maximum serial clock frequency supported by MAX1283BEUE+?
The MAX1283BEUE+ supports a maximum serial clock (SCLK) frequency of 4.8MHz, as specified in its electrical characteristics table for the MAX1283 variant. This clock rate enables the full 300ksps sampling capability with 16 clock cycles per conversion. Operating above 4.8MHz may violate setup/hold timing and cause invalid data reads or conversion errors.
Does MAX1283BEUE+ require an external reference, or can it operate with its internal reference?
MAX1283BEUE+ can operate with its internal +2.500V reference, which is factory-trimmed to ±1.5% and adjustable via the REFADJ pin. An external reference (1.0V to VDD) may also be used by disabling the internal buffer - pulling REFADJ to VDD1 - making MAX1283BEUE+ flexible for both cost-sensitive and high-accuracy applications.
How does the pseudo-differential mode work on MAX1283BEUE+?
In pseudo-differential mode, MAX1283BEUE+ samples only the positive input (e.g., CH0), while the negative input (e.g., CH1) remains held stable - not actively sampled. Valid pairs are CH0/CH1 and CH2/CH3. The input must stay within ±0.5LSB of its value during conversion; this architecture simplifies design versus true differential ADCs while retaining common-mode rejection benefits.
What power modes does MAX1283BEUE+ support, and how are they controlled?
MAX1283BEUE+ supports four power modes: Normal (2.5mA), Reduced Power (REDP, 1.3mA), Fast Power-Down (FASTPD, 0.9mA), and Full Power-Down (FULLPD, 2µA). These are selected via PD1/PD0 bits in the 8-bit control word sent to DIN. Additionally, the SHDN pin provides hardware-controlled FULLPD activation independent of serial commands.
Is MAX1283BEUE+ pin-compatible with MAX1282BEUE+?
No, MAX1283BEUE+ is not pin-compatible with MAX1282BEUE+. Although both share the same 16-pin TSSOP package and identical pinout numbering, their supply voltage ranges differ fundamentally: MAX1283BEUE+ operates from +2.7V to +3.6V, while MAX1282BEUE+ requires +4.5V to +5.5V. Interchanging them risks under-voltage lockout or permanent damage due to incompatible rail requirements.
MAX1283BEUE+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 300k
- 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:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1283BEUE+ FAQ
1.How can I place an order for MAX1283BEUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1283BEUE+ 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 MAX1283BEUE+ reliable?
The price and inventory of MAX1283BEUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1283BEUE+ is usually 5 days.
3.What payment methods are accepted for MAX1283BEUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1283BEUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1283BEUE+?
MAX1283BEUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1283BEUE+ 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 MAX1283BEUE+?
For technical support, including MAX1283BEUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1283BEUE+ requirements.
6.How does Aetrix verify that MAX1283BEUE+ is sourced from the original manufacturer or authorized distributors?
All MAX1283BEUE+ 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 MAX1283BEUE+ meets industry standards.
7.What is the process for return or replacement of MAX1283BEUE+?
All MAX1283BEUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1283BEUE+, 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 MAX1283BEUE+ part is unused and in its original packaging.
Return procedure for MAX1283BEUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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