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Analog Devices Inc./Maxim Integrated MAX1083BCUE+
- Part No.:
- MAX1083BCUE+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MAX1083BCUE+.pdf
- Description:
- IC ADC 10BIT 300KSPS 16-TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,614
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Product details
Overview
MAX1083BCUE+ from Maxim Integrated is a 10-bit, 4-channel serial analog-to-digital converter (ADC) operating from a single +2.7V to +3.6V supply, featuring internal +2.5V reference, 300ksps sampling rate, and software-configurable unipolar/bipolar pseudo-differential inputs. It integrates track/hold, 4-wire SPI/QSPI/MICROWIRE-compatible interface, and four power modes-including full power-down consuming only 2µA-for battery-powered data acquisition in portable medical instruments and process control systems.
For engineers reviewing the MAX1083BCUE+ datasheet, MAX1083BCUE+ pinout, MAX1083BCUE+ application, or MAX1083BCUE+ equivalent, this page delivers verified electrical parameters, validated TSSOP-16 pin functions, confirmed low-power operation across temperature, and real-world use cases aligned with its 300ksps throughput, ±1 LSB INL, and internal reference architecture.
Technical Context
The MAX1083BCUE+ employs successive-approximation register (SAR) architecture with integrated track/hold and analog input multiplexer. Its conversion timing is fully clock-driven by an external SCLK (up to 4.8MHz), requiring exactly 16 clock cycles per conversion at 300ksps, with aperture delay of 10ns and acquisition time of 625ns.
It supports dual input configurations: unipolar single-ended (CH0–CH3 vs. COM) and pseudo-differential (CH0/CH1 or CH2/CH3), where only the positive input is sampled while the negative side must remain stable within ±0.5LSB. Internal reference buffer provides 2.500V ±20mV output with ±15ppm/°C TC and ±1.0 LSB gain error over –40°C to +85°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit SAR ADC - delivers 1024 discrete digital codes for precise analog signal digitization. |
| Sampling Rate | 300ksps - enables real-time capture of signals up to 150kHz Nyquist bandwidth in high-fidelity data logging. |
| INL (Integral Nonlinearity) | ±1 LSB - ensures monotonic transfer function and <0.1% full-scale error after calibration. |
| Supply Voltage | +2.7V to +3.6V single supply - compatible with Li-ion and 3.3V system rails without level-shifting. |
| Reference | Internal +2.500V ±20mV - eliminates external reference component count and reduces BOM cost and board space. |
| Power Consumption | 2.5mA (normal), 2µA (full power-down) - extends battery life in portable instrumentation between conversions. |
| Operating Temperature | –40°C to +85°C - qualified for industrial and medical environments with guaranteed performance across range. |
Pinout & Package
MAX1083BCUE+ is housed in a 16-pin TSSOP package (5.0mm × 4.4mm, 0.65mm pitch), RoHS-compliant and lead-free.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD1, VDD2 (Pins 1, 16) | Positive supply inputs | Must be tied together and decoupled locally; powers analog and digital sections independently for noise isolation. |
| GND (Pin 10) | Analog/digital ground reference | Single-point connection required to minimize ground bounce and ensure ±0.5LSB COM stability. |
| CH0–CH3 (Pins 2–5) | Analog input channels | Software-selectable as single-ended or pseudo-differential pairs (CH0/CH1, CH2/CH3); support rail-to-rail input swing. |
| COM (Pin 6) | Common-mode reference | Sets zero-code voltage in single-ended mode; must be stable to ±0.5LSB for accurate offset performance. |
| SHDN (Pin 7) | Hardware shutdown control | Active-low input; pulls supply current to 2µA typical when asserted, enabling rapid wake-up between samples. |
| REF (Pin 8) | Reference buffer output / external REF input | Provides 2.500V nominal output; disable internal buffer by pulling REFADJ to VDD1 to use external 1V–VDD reference. |
| REFADJ (Pin 9) | Reference buffer adjustment | Allows ±1.5% fine-tuning of REF output; bypass with 0.01µF capacitor to GND for noise suppression. |
| DOUT (Pin 11) | Serial data output | MSB-first, 12-bit frame (10 data + 2 sub-LSBs) clocked on SCLK rising edge; high-impedance when CS = high. |
| SSTRB (Pin 12) | Serial strobe output | Pulses high for one SCLK period before MSB decision; synchronizes DSP capture of conversion result. |
| DIN (Pin 13) | Serial data input | Accepts 8-bit control byte defining channel, polarity, and power mode; latched on SCLK rising edge. |
| CS (Pin 14) | Chip select | Active-low enable; initiates serial interface and powers up device from power-down states automatically. |
| SCLK (Pin 15) | Serial clock input | Drives both data transfer and conversion timing; 4.8MHz max frequency defines 300ksps throughput. |
Key Features
| Feature | Design Value |
|---|---|
| 4-wire SPI/QSPI/MICROWIRE interface | Direct connection to microcontrollers and TMS320-family DSPs without glue logic-reduces PCB complexity and firmware overhead. |
| Four software-selectable power modes | Normal (2.5mA), reduced-power (1.3mA), fast power-down (0.9mA), and full power-down (2µA)-enables adaptive energy management per sample. |
| Pseudo-differential input architecture | Supports CH0/CH1 and CH2/CH3 differential pairs while maintaining single-ended simplicity-improves noise rejection without dedicated differential drivers. |
| Internal reference with ±15ppm/°C TC | Stable 2.500V ±20mV output over –40°C to +85°C eliminates need for external precision reference and associated layout sensitivity. |
| Track/hold acquisition time: 625ns | Enables accurate sampling of fast transients; acquisition window defined by SCLK edges-simplifies timing-critical system design. |
Applications
| Portable Data Logging | Medical Instrumentation |
|---|---|
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: 4-channel ADC digitizes multiple analog sensors simultaneously; internal reference ensures consistent scaling across varying battery voltage. Use Value: 2µA full power-down current extends runtime; 300ksps headroom allows oversampling for noise reduction without external clocking complexity. |
Use Scenario: Handheld ECG monitor acquiring lead-II and lead-III signals with simultaneous respiration sensing via thermistor. IC Role / Device Role / Timing Role: Pseudo-differential mode captures biopotential differences while rejecting common-mode interference; COM pin referenced to patient ground. Use Value: ±1 LSB INL guarantees diagnostic-grade linearity; single 3.3V supply simplifies isolated power architecture and meets IEC 60601 creepage requirements. |
| Battery-Powered Instruments | Process Control Sensors |
Use Scenario: Field-deployable pH/ORP meter using glass electrode and reference electrode, operating from two AA cells for >6 months. IC Role / Device Role / Timing Role: Unipolar single-ended mode reads high-impedance electrode outputs; internal 2.5V reference avoids drift from aging batteries. Use Value: 1.3mA reduced-power mode maintains responsiveness during standby; SHDN pin enables MCU-controlled wake-on-event. |
Use Scenario: DIN-rail mounted analog input module converting 4–20mA current loop signals from flow, pressure, and level transmitters. IC Role / Device Role / Timing Role: Four independent channels condition and digitize loop-powered sensor outputs; REFADJ allows calibration trim without hardware change. Use Value: ±3.0 LSB gain error spec accommodates field calibration; TSSOP-16 footprint enables dense channel packing in compact enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit, multi-channel, low-power ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, 200ksps, +2.7V to +5.25V supply, no internal reference - requires external REF and higher supply headroom. | Lower resolution limits dynamic range in precision medical or sensor applications; lacks bipolar input support. | Select only if 8-bit accuracy suffices and external reference is already present in design; not drop-in for MAX1083BCUE+. |
| AD7476ARTZ-REEL7 | Single-channel, 1MSPS, +2.35V to +5.25V, no internal reference or multiplexer - requires external channel selection and REF. | Not suitable for 4-channel simultaneous sampling; higher speed irrelevant where 300ksps is adequate. | Choose only for ultra-high-speed single-signal monitoring; adds complexity for multi-channel systems due to missing MUX and REF. |
Compared with ADS7822U and AD7476ARTZ-REEL7, the MAX1083BCUE+ uniquely integrates 4-channel MUX, internal 2.5V reference, and pseudo-differential capability in a single 16-pin TSSOP-reducing component count, layout area, and calibration effort for portable and industrial data acquisition.
Availability
MAX1083BCUE+ is available at Aetrix Electronics and suitable for portable data logging, battery-powered instrumentation, and industrial process control applications requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for MAX1083BCUE+ 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 industrial, medical, and communications markets.
The MAX1082/MAX1083 family was engineered for low-power, multi-channel data acquisition in space-constrained, battery-operated systems-emphasizing integrated reference, flexible input configuration, and seamless microcontroller interfacing.
FAQ
What is the maximum sampling rate supported by the MAX1083BCUE+?
The MAX1083BCUE+ supports a maximum sampling rate of 300ksps, achieved with a 4.8MHz serial clock frequency and 16 clock cycles per conversion. This rate is specified under conditions of +2.7V to +3.6V supply, bipolar input mode, and 75kHz sine-wave input. Performance remains stable across the full –40°C to +85°C operating temperature range, making the MAX1083BCUE+ suitable for time-critical industrial sensing where deterministic throughput is essential.
Does the MAX1083BCUE+ require an external reference voltage?
No, the MAX1083BCUE+ includes an internal +2.500V reference with ±20mV initial accuracy and ±15ppm/°C temperature coefficient, eliminating the need for an external reference in most applications. However, it supports external reference operation: disable the internal buffer by pulling REFADJ to VDD1 and apply a 1V to VDD reference to the REF pin. The MAX1083BCUE+ maintains full specification compliance in either mode, but internal reference usage simplifies design and reduces BOM cost.
How does the pseudo-differential input mode work on the MAX1083BCUE+?
The MAX1083BCUE+ supports pseudo-differential mode by selecting input pairs CH0/CH1 or CH2/CH3, where only the positive input (e.g., CH0) is actively sampled while the negative input (e.g., CH1) serves as a stable reference point. Unlike true differential ADCs, the negative input is not sampled-so it must remain stable within ±0.5LSB relative to GND during conversion. This architecture retains the noise-rejection benefits of differential signaling while avoiding the complexity of matched input drivers, making the MAX1083BCUE+ ideal for cost-sensitive sensor interfaces.
What power modes are available on the MAX1083BCUE+ and how do they affect wake-up time?
The MAX1083BCUE+ offers four software-selectable power modes: normal (2.5mA), reduced-power (1.3mA), fast power-down (0.9mA), and full power-down (2µA). When entering any power-down state, the device wakes automatically upon CS assertion or SCLK activity, with full turn-on time under 1µs-fast enough to enable power gating between individual conversions. This behavior is confirmed in the datasheet's Note 11 and enables aggressive energy optimization in duty-cycled systems without sacrificing responsiveness.
Is the MAX1083BCUE+ pin-compatible with other devices in the MAX1082/MAX1083 family?
Yes, the MAX1083BCUE+ shares identical pinout and package (16-pin TSSOP) with all MAX1082 and MAX1083 variants, including MAX1082ACUE+, MAX1083AEUE+, and MAX1082BCUE+. Electrical compatibility is maintained across supply voltage ranges (+2.7V–+3.6V for MAX1083, +4.5V–+5.5V for MAX1082), but direct substitution requires verifying supply rail alignment and timing specifications-e.g., MAX1083BCUE+ uses 4.8MHz SCLK for 300ksps, whereas MAX1082 variants require 6.4MHz for 400ksps. The MAX1083BCUE+ is not a drop-in replacement for MAX1082-series parts without system-level validation.
MAX1083BCUE+ 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:
- 10
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1083BCUE+ FAQ
1.How can I place an order for MAX1083BCUE+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1083BCUE+ 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 MAX1083BCUE+ reliable?
The price and inventory of MAX1083BCUE+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1083BCUE+ is usually 5 days.
3.What payment methods are accepted for MAX1083BCUE+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1083BCUE+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1083BCUE+?
MAX1083BCUE+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1083BCUE+ 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 MAX1083BCUE+?
For technical support, including MAX1083BCUE+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1083BCUE+ requirements.
6.How does Aetrix verify that MAX1083BCUE+ is sourced from the original manufacturer or authorized distributors?
All MAX1083BCUE+ 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 MAX1083BCUE+ meets industry standards.
7.What is the process for return or replacement of MAX1083BCUE+?
All MAX1083BCUE+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1083BCUE+, 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 MAX1083BCUE+ part is unused and in its original packaging.
Return procedure for MAX1083BCUE+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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