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Analog Devices Inc./Maxim Integrated MAX1092BEEG+
- Part No.:
- MAX1092BEEG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1092BEEG+.pdf
- Description:
- IC ADC 10BIT 400KSPS 24-QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:5,291
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Product details
Overview
MAX1092BEEG+ from Maxim Integrated is a 10-bit, 400ksps successive-approximation analog-to-digital converter (ADC) with integrated +2.5V reference, software-configurable 4-channel single-ended or 2-channel pseudo-differential analog input, and byte-wide parallel (8 + 2) interface. It operates from a single +5V analog supply and supports digital logic levels from +2.7V to +5.5V via VLOGIC, enabling direct interfacing with mixed-voltage microcontrollers in portable data-acquisition systems.
For engineers reviewing the MAX1092BEEG+ datasheet, MAX1092BEEG+ pinout, MAX1092BEEG+ application, or MAX1092BEEG+ equivalent, key selection considerations include its -40°C to +85°C industrial temperature grade, 24-pin QSOP package, 2.5mA active current at 400ksps, ±0.5 LSB INL, and support for unipolar/bipolar input modes - all critical for battery-powered patient monitoring and energy management designs requiring precision, low power, and space efficiency.
Technical Context
The MAX1092BEEG+ employs a charge-redistribution SAR architecture with an internal track-and-hold stage offering 6MHz full-power bandwidth and 350kHz full-linear bandwidth. Its control byte (D7–D0) configures acquisition mode (internal/external), clock source (internal/external), unipolar/bipolar range, and channel selection - enabling flexible system-level timing control without external timing components.
It features dual power-down modes: standby (≤10µA) and full shutdown (≤2µA), triggered via software-controlled PD bits. The device tri-states INT on CS high and supports high-byte enable (HBEN) for 10-bit result multiplexing across an 8-bit data bus - essential for resource-constrained 8-bit µP interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for precise signal digitization in sensor and control loops. |
| Max Sampling Rate | 400ksps - supports real-time capture of fast transients up to ~175kHz input frequency (SINAD >56dB). |
| Integral Nonlinearity | ±0.5 LSB - ensures monotonicity and <0.05% full-scale error after gain/offset calibration. |
| Analog Input Channels | 4 single-ended or 2 pseudo-differential - enables compact multi-sensor monitoring without external MUX. |
| Supply Current (400ksps) | 2.5mA at VDD = VLOGIC = +5V - enables operation from coin-cell or low-power LDOs in portable devices. |
| Reference | +2.5V internal bandgap - eliminates need for external reference IC and reduces BOM count and layout area. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and medical environments where thermal stability is critical. |
| Package | 24-pin QSOP - 8.7mm × 3.9mm footprint compatible with standard surface-mount assembly processes. |
Pinout & Package
MAX1092BEEG+ is housed in a 24-pin QSOP (Quad Small Outline Package) with 0.65mm lead pitch, optimized for high-density PCB layouts and automated assembly. Pin 24 is GND; pins 1–23 provide analog inputs, digital I/O, control, and power connections as detailed below.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 HBEN | High-Byte Enable | Selects whether D7–D0 carry LSBs (HBEN=0) or MSBs (HBEN=1); enables 10-bit readout over 8-bit bus. |
| 2–7 D7–D2 | Digital Output Bus (LSB) | Three-state outputs delivering lower 6 bits of conversion result; driven only when CS low and RD active. |
| 8 D1/D9 | Multiplexed Data Line | Outputs D1 (HBEN=0) or D9 (HBEN=1); allows full 10-bit result access without widening data path. |
| 9 D0/D8 | Multiplexed Data Line | Outputs D0 (HBEN=0) or D8 (HBEN=1); completes 10-bit parallel interface in space-constrained systems. |
| 10 INT | Interrupt Output | Active-low open-drain signal indicating conversion completion and data readiness; tri-stated when CS high. |
| 11 RD | Read Strobe Input | Falling edge initiates data read; latches conversion result onto D7–D0/D1/D0 bus when CS is asserted. |
| 12 WR | Write Strobe Input | Rising edge loads control byte (channel, mode, power-down) and triggers acquisition/conversion sequence. |
| 13 CLK | Clock Input/Output | Accepts external 100kHz–7.6MHz clock; tied to VDD/GND to enable internal 6MHz clock generator. |
| 14 CS | Chip Select | Active-low enable; places INT, D7–D0, D1/D9, D0/D8 in high-impedance state when deasserted. |
| 15–18 CH3–CH0 | Analog Input Channels | Four single-ended inputs referenced to COM; configurable as two pseudo-differential pairs (CH0/CH1, CH2/CH3). |
| 19 COM | Analog Common Reference | Sets zero-code voltage in single-ended mode; must remain stable to ±0.5 LSB during conversion. |
| 20 GND | Analog & Digital Ground | Single ground pin shared by analog and digital sections; requires low-impedance PCB connection to minimize noise coupling. |
| 21 REFADJ | Reference Adjust/Disable | Connect to VDD to disable internal reference when using external REF; bypass with 0.01µF capacitor. |
| 22 REF | Reference Output/Input | Provides +2.5V internal reference; accepts external reference when REFADJ = VDD; bypass with 4.7µF capacitor. |
| 23 VDD | +5V Analog Supply | Powers analog core and T/H stage; requires local 0.1µF ceramic decoupling to GND. |
| 24 VLOGIC | +2.7V to +5.5V Digital Supply | Independently powers digital I/O; enables interoperability with 3.3V or 5V µPs without level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| Software-Configurable Input Multiplexer | Supports 4 single-ended or 2 pseudo-differential channels via control byte - eliminates external analog switches in multi-sensor systems. |
| Internal +2.5V Reference | ±2ppm/°C tempco and ±100mV adjust range - provides stable scaling without external reference IC or trimming components. |
| Two Power-Down Modes | Standby (≤10µA) and full shutdown (≤2µA) - extends battery life in intermittent-sampling applications like energy meters. |
| Flexible Clock Architecture | Internal 6MHz clock or external 100kHz–7.6MHz source - simplifies timing design while supporting undersampling of high-frequency signals. |
| Independent Digital Supply (VLOGIC) | +2.7V to +5.5V range - enables direct interface with 3.3V FPGAs or 5V µCs without level translation circuitry. |
| Fast Wake-Up (2µs) | Enables rapid sampling bursts after wake-up - critical for responsive touchscreens and event-triggered data logging. |
Applications
| Industrial Control Systems | Data Logging |
|---|---|
Use Scenario: Monitoring temperature, pressure, and flow sensors in PLC I/O modules with limited board space and thermal cycling. IC Role / Device Role / Timing Role: 10-bit ADC digitizing 4 analog sensor outputs with ±0.5 LSB linearity and -40°C to +85°C operation. Use Value: Eliminates external reference and level shifters, reducing component count and improving long-term measurement stability under thermal stress. |
Use Scenario: Battery-powered environmental logger capturing soil moisture, light, and humidity at 10ksps intervals over weeks. IC Role / Device Role / Timing Role: Low-power ADC with 400µA current at 10ksps and 2µA shutdown mode extending operational lifetime. Use Value: Enables >1-year battery life using CR2032 cells while maintaining 10-bit resolution across temperature and supply voltage variation. |
| Energy Management | Patient Monitoring |
Use Scenario: Smart meter front-end measuring AC voltage/current waveforms with harmonic analysis capability. IC Role / Device Role / Timing Role: 400ksps SAR ADC with 6MHz full-power bandwidth supporting undersampling of 50/60Hz fundamentals and harmonics. Use Value: Captures >3rd harmonic content without anti-alias filter complexity, enabling accurate RMS and THD calculation in compact meter designs. |
Use Scenario: Portable ECG/SpO₂ monitor acquiring biopotential signals with low noise and high CMRR requirements. IC Role / Device Role / Timing Role: Pseudo-differential ADC rejecting common-mode noise from electrode interfaces while providing 10-bit dynamic range. Use Value: Achieves >72dB SFDR and <78dB crosstalk between channels - critical for artifact-free waveform visualization and arrhythmia detection. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, SPI interface, no internal reference, 200ksps max rate | Limited to lower-precision, serial-interface systems with tighter cost constraints | Choose when 8-bit resolution suffices and PCB space permits serial interface routing. |
| MAX11100ETE+ | 12-bit resolution, 500ksps, internal 2.048V reference, 16-pin TQFN | Higher precision required for medical diagnostics or high-fidelity audio sampling | Choose when >10-bit ENOB and smaller 4mm × 4mm package are prioritized over parallel interface simplicity. |
Compared with MAX1092BEEG+, ADS7822U trades resolution and parallel speed for lower cost and smaller footprint, while MAX11100ETE+ upgrades resolution and sampling rate but requires redesign for SPI interface and different reference voltage - making MAX1092BEEG+ optimal for cost-sensitive, 10-bit, µP-native parallel systems needing industrial temperature range and integrated reference.
Availability
MAX1092BEEG+ is available at Aetrix Electronics and suitable for industrial control systems, portable data loggers, and patient monitoring devices requiring stable component supply, guaranteed -40°C to +85°C operation, and long-term production continuity.
Supply support for MAX1092BEEG+ 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 semiconductor company specializing in high-performance analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX1090/MAX1092 family was designed for space- and power-constrained data-acquisition systems requiring integrated reference, flexible input configuration, and parallel µP interfacing - targeting portable instrumentation and embedded sensing.
FAQ
What is the operating temperature range of the MAX1092BEEG+?
The MAX1092BEEG+ is rated for -40°C to +85°C operation, as confirmed by its "E" grade suffix and electrical characteristics tables in the official datasheet. This extended industrial temperature range ensures reliable performance in demanding environments such as factory automation controllers and outdoor energy meters where ambient temperatures fluctuate widely. The MAX1092BEEG+ maintains specified INL, DNL, and reference accuracy across this full range.
Does the MAX1092BEEG+ require an external clock to operate?
No, the MAX1092BEEG+ does not require an external clock. It includes an internal 6MHz clock generator that can be enabled by setting bits D7=1 and D6=0 in the control byte. When using internal clock mode, the CLK pin must be tied to either VDD or GND to prevent floating. External clock operation (100kHz–7.6MHz) is optional and used when precise aperture control or synchronization with system clocks is needed. The MAX1092BEEG+ functions fully with either clock source.
How many analog input channels does the MAX1092BEEG+ support?
The MAX1092BEEG+ supports four single-ended analog input channels (CH0–CH3) or two pseudo-differential channel pairs (CH0/CH1 and CH2/CH3), as explicitly defined in the General Description and Pin Configurations sections of the datasheet. This is distinct from the MAX1090 (8-channel) and is fixed per the MAX1092 part number. Channel selection is performed via the A2–A0 address bits in the control byte, and the SGL/DIF bit determines the input mode.
Can the MAX1092BEEG+ interface directly with a 3.3V microcontroller?
Yes, the MAX1092BEEG+ can interface directly with a 3.3V microcontroller using its VLOGIC pin. The datasheet specifies VLOGIC operation from +2.7V to +5.5V, and digital outputs (D7–D0, D1/D9, D0/D8, INT) are referenced to VLOGIC. With VLOGIC = 3.3V, output VOH is ≥2.8V and VOL is ≤0.4V - compatible with standard 3.3V CMOS input thresholds. No level-shifting circuitry is required when using the MAX1092BEEG+ in mixed-voltage systems.
What power-down current does the MAX1092BEEG+ achieve in shutdown mode?
In full power-down mode, the MAX1092BEEG+ draws ≤2µA total supply current, as specified in the Electrical Characteristics table under "Shutdown mode" for IDD and IREF. This ultra-low current enables multi-year battery operation in intermittent-sampling applications such as wireless sensor nodes and portable diagnostic tools. The shutdown state is entered by setting PD1=PD0=0 in the control byte, and wake-up occurs in 2µs upon exit from power-down.
MAX1092BEEG+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 400k
- Number of Inputs:
- 2, 4
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- Parallel
- 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:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1092BEEG+ FAQ
1.How can I place an order for MAX1092BEEG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1092BEEG+ 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 MAX1092BEEG+ reliable?
The price and inventory of MAX1092BEEG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1092BEEG+ is usually 5 days.
3.What payment methods are accepted for MAX1092BEEG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1092BEEG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1092BEEG+?
MAX1092BEEG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1092BEEG+ 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 MAX1092BEEG+?
For technical support, including MAX1092BEEG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1092BEEG+ requirements.
6.How does Aetrix verify that MAX1092BEEG+ is sourced from the original manufacturer or authorized distributors?
All MAX1092BEEG+ 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 MAX1092BEEG+ meets industry standards.
7.What is the process for return or replacement of MAX1092BEEG+?
All MAX1092BEEG+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1092BEEG+, 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 MAX1092BEEG+ part is unused and in its original packaging.
Return procedure for MAX1092BEEG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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