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Analog Devices Inc./Maxim Integrated MAX1092BCEG+
- Part No.:
- MAX1092BCEG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1092BCEG+.pdf
- Description:
- IC ADC 10BIT SAR 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,357
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Product details
Overview
MAX1092BCEG+ from Maxim Integrated is a 10-bit successive-approximation ADC with integrated +2.5V reference, 4-channel single-ended / 2-channel pseudo-differential analog input multiplexer, byte-wide parallel (8+2) interface, and software-configurable unipolar/bipolar operation. It operates from a single +5V analog supply and supports digital logic levels from +2.7V to +5.5V via VLOGIC, targeting low-power data-acquisition systems in patient monitoring and industrial control.
For engineers reviewing the MAX1092BCEG+ datasheet, MAX1092BCEG+ pinout, MAX1092BCEG+ application, or MAX1092BCEG+ equivalent, key selection criteria include its 400ksps sampling rate, ±0.5 LSB INL, internal track/hold with 6MHz full-power bandwidth, 2.5mA active current at full speed, and 2µA shutdown current - all in a compact 24-pin QSOP package rated for 0°C to +70°C.
Technical Context
The MAX1092BCEG+ implements a charge-redistribution SAR architecture with an on-chip track-and-hold stage, supporting both internal and external clock modes (7.6MHz max) and internal/external acquisition control. Its analog front-end allows software-selectable unipolar (0 to +2.5V) or bipolar (±1.25V) input ranges referenced to COM, with channel-to-channel offset matching of ±0.1 LSB.
Conversion timing is deterministic: 13 clock cycles per conversion, with aperture delay of 25ns and aperture jitter <200ps (internal clock) or <50ps (external clock). The device tri-states INT on CS high and uses HBEN to multiplex 10-bit output across an 8-bit data bus, enabling seamless interfacing with 8-bit microprocessors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes with monotonic transfer function and no missing codes over temperature. |
| Sampling Rate | 400ksps maximum - supports real-time digitization of signals up to 350kHz full-linear bandwidth without aliasing. |
| INL / DNL | ±0.5 LSB / ±1 LSB - ensures accurate representation of analog signals with minimal code-dependent gain/offset error. |
| Analog Inputs | 4 single-ended or 2 pseudo-differential channels - enables multi-sensor monitoring with shared COM reference and stable ±0.5 LSB hold requirement on IN−. |
| Power Consumption | 2.5mA at 400ksps, 2µA in shutdown - enables battery operation for >1 year in intermittent-sampling applications. |
| Reference | +2.5V internal bandgap (±20ppm/°C TC, ±100mV adjust range) - eliminates external reference component while maintaining 12-bit effective resolution in precision systems. |
| Interface | Byte-wide parallel (D7–D0 + D1/D9, D0/D8) with HBEN control - reduces MCU GPIO count and simplifies firmware by reusing 8-bit data lines for 10-bit results. |
Pinout & Package
MAX1092BCEG+ is housed in a 24-pin QSOP (0.154" wide) package with exposed pad for thermal enhancement. Pin pitch is 0.025", body dimensions are 3.9mm × 8.7mm × 1.4mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH3 | Analog input channels | Four single-ended inputs; in pseudo-differential mode, paired as CH0/CH1 and CH2/CH3 - requires stable COM reference within ±0.5 LSB during conversion. |
| COM | Analog ground reference | Sets zero-code voltage in single-ended mode; must remain stable to ±0.5 LSB during acquisition and conversion intervals. |
| VDD, GND | Analog power and ground | +5V analog supply with 0.1µF local bypass; shared analog/digital ground plane required to minimize noise coupling into T/H stage. |
| VLOGIC | Digital I/O supply | Independent +2.7V to +5.5V rail powers D0–D9, INT, RD, WR, CS - enables direct interfacing with 3.3V or 5V µPs without level shifters. |
| REF, REFADJ | Internal reference control | REF outputs +2.5V (bypassed with 4.7µF); REFADJ disables internal reference when tied to VDD for external reference use. |
| CS, RD, WR, CLK, HBEN | Parallel interface controls | Active-low chip select enables three-state outputs; RD latches data on falling edge; WR initiates acquisition/conversion; HBEN selects MSBs/LSBs on data bus. |
| D0/D8–D7, INT | Data and status outputs | Three-state bidirectional data lines; INT asserts low upon conversion completion and clears on first RD or new control byte write. |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input topology | Single-ended (4 ch) or pseudo-differential (2 ch) mode selected via SGL/DIF bit - eliminates need for external signal conditioning circuitry in multi-sensor systems. |
| Flexible reference architecture | Integrated +2.5V bandgap reference with ±100mV trim range and 20ppm/°C tempco - achieves ±2 LSB total error over 0°C to +70°C without calibration. |
| Low-noise track-and-hold | 6MHz full-power bandwidth and 350kHz full-linear bandwidth - supports undersampling of RF signals and accurate capture of fast transients in energy management systems. |
| Two-stage power-down control | Standby (10µA) and full shutdown (2µA) modes activated via PD0/PD1 bits - extends battery life in portable data loggers by >100× versus continuous operation. |
| Aperture jitter optimization | <50ps jitter in external clock mode - preserves SNR >60dB at 50kHz input frequency, critical for high-fidelity patient monitoring waveforms. |
Applications
| Patient Monitoring | Industrial Control Systems |
|---|---|
Use Scenario: Continuous acquisition of ECG, SpO₂, and respiration waveforms in portable bedside monitors. IC Role / Device Role / Timing Role: 10-bit ADC digitizing analog sensor outputs at 200–500ksps with low THD (-72dB) and high SINAD (60dB) to preserve diagnostic fidelity. Use Value: Internal +2.5V reference and 2.5mA active current enable single-supply, low-component-count front-end design meeting IEC 60601-2-27 immunity requirements. |
Use Scenario: Multi-point temperature and pressure sensing in PLC I/O modules with isolated fieldbus communication. IC Role / Device Role / Timing Role: 4-channel ADC scanning thermocouple and strain-gauge bridges using pseudo-differential mode to reject common-mode noise on long sensor cables. Use Value: ±0.1 LSB channel-to-channel offset matching and COM-referenced architecture reduce calibration overhead and improve system-level accuracy to ±0.1% FS. |
| Data Logging | Energy Management |
Use Scenario: Battery-powered environmental sensor nodes logging temperature, humidity, and light intensity over weeks between charges. IC Role / Device Role / Timing Role: Low-power ADC operating in periodic wake-up mode, sampling at 10ksps (400µA) then entering 2µA shutdown between readings. Use Value: Software-selectable power-down modes and fast 2µs wake-up time cut average current to <10µA, extending CR2032 battery life beyond 2 years. |
Use Scenario: Real-time voltage/current measurement in smart meter anti-tampering circuits and solar inverter DC-link monitoring. IC Role / Device Role / Timing Role: High-speed ADC capturing transient overvoltage events with 6MHz T/H bandwidth and 13-cycle deterministic conversion latency. Use Value: External acquisition mode enables precise trigger-aligned sampling; internal clock option simplifies µP firmware by offloading timing generation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit parallel-output ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, SPI interface, no internal reference, 200ksps max - smaller die size but lower precision and serial-only interface. | Best suited for cost-sensitive, space-constrained applications where 8-bit resolution suffices and µP lacks parallel bus. | Select ADS7822U only if resolution ≤8-bit and serial interface is preferred; MAX1092BCEG+ provides 2-bit higher resolution and parallel throughput advantage. |
| MAX1166BCAP+ | 12-bit resolution, I²C interface, internal reference, 100ksps - higher precision but slower and incompatible bus protocol. | Ideal for low-speed, high-accuracy sensor hubs where I²C simplifies routing and reduces pin count. | Choose MAX1166BCAP+ when 12-bit accuracy is mandatory and system already uses I²C; MAX1092BCEG+ delivers better speed and parallel compatibility for µP-based DAQ. |
Compared with ADS7822U and MAX1166BCAP+, the MAX1092BCEG+ uniquely balances 10-bit precision, 400ksps parallel throughput, integrated reference, and ultra-low shutdown current - making it optimal for battery-powered, µP-centric data-acquisition systems requiring both speed and efficiency.
Availability
MAX1092BCEG+ is available at Aetrix Electronics and suitable for patient monitoring, industrial control systems, and energy management applications requiring stable component supply, extended temperature validation, and long-term production continuity.
Supply support for MAX1092BCEG+ 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 MAX1092BCEG+ belongs to Maxim's low-power, high-speed ADC product line engineered specifically for space- and power-constrained data-acquisition systems requiring integrated references and flexible digital interfacing.
FAQ
What is the operating temperature range for the MAX1092BCEG+?
The MAX1092BCEG+ is specified for operation from 0°C to +70°C, as indicated by the 'C' grade suffix in its part number. This commercial-grade rating ensures reliable performance in indoor industrial equipment, portable medical devices, and consumer data loggers without requiring extended-temperature qualification.
Does the MAX1092BCEG+ require an external clock to operate?
No, the MAX1092BCEG+ supports both internal and external clock modes. When configured for internal clock mode (D7=1, D6=0), it generates its own 7.6MHz conversion clock - eliminating the need for an external oscillator and simplifying PCB layout. The CLK pin must be tied to VDD or GND in this mode to prevent floating.
How does the HBEN pin affect data readout on the MAX1092BCEG+?
The HBEN (High Byte Enable) pin determines how the 10-bit conversion result is presented on the 8-bit data bus: when HBEN = 1, D7–D0 carry bits D9–D2 (MSBs); when HBEN = 0, they carry D7–D0 (LSBs). This multiplexing allows full 10-bit resolution using only 8 data lines, reducing MCU pin count and simplifying firmware handling of the result.
Can the MAX1092BCEG+ interface directly with a 3.3V microprocessor?
Yes, the MAX1092BCEG+ supports independent digital supply via the VLOGIC pin, which accepts +2.7V to +5.5V. When VLOGIC = 3.3V, all digital outputs (D0–D9, INT, RD, WR, CS) are fully compatible with 3.3V CMOS logic levels - no level-shifting circuitry is required for interfacing with modern low-voltage µPs.
What is the minimum acquisition time required before conversion starts on the MAX1092BCEG+?
The MAX1092BCEG+ specifies a minimum acquisition time (tACQ) of 3.2µs in internal acquisition mode and 4µs in external acquisition mode. This time ensures the internal track-and-hold capacitor fully settles to within 1/2 LSB of the input voltage, preserving accuracy even with source impedances up to 3kΩ without external buffering.
MAX1092BCEG+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 24-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1092BCEG+ FAQ
1.How can I place an order for MAX1092BCEG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1092BCEG+ 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 MAX1092BCEG+ reliable?
The price and inventory of MAX1092BCEG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1092BCEG+ is usually 5 days.
3.What payment methods are accepted for MAX1092BCEG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1092BCEG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1092BCEG+?
MAX1092BCEG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1092BCEG+ 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 MAX1092BCEG+?
For technical support, including MAX1092BCEG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1092BCEG+ requirements.
6.How does Aetrix verify that MAX1092BCEG+ is sourced from the original manufacturer or authorized distributors?
All MAX1092BCEG+ 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 MAX1092BCEG+ meets industry standards.
7.What is the process for return or replacement of MAX1092BCEG+?
All MAX1092BCEG+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1092BCEG+, 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 MAX1092BCEG+ part is unused and in its original packaging.
Return procedure for MAX1092BCEG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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