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Analog Devices Inc./Maxim Integrated MAX1092ACEG+
- Part No.:
- MAX1092ACEG+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1092ACEG+.pdf
- Description:
- IC ADC 10BIT 400KSPS 24-QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,048
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Product details
Overview
MAX1092ACEG+ 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, and byte-wide parallel (8+2) interface. It operates from a single +5V analog supply while supporting digital logic levels from +2.7V to +5.5V via VLOGIC, delivers 400ksps sampling rate with 2.5mA supply current, and targets space-constrained, low-power data-acquisition systems such as portable patient monitors and industrial sensor nodes.
For engineers reviewing the MAX1092ACEG+ datasheet, MAX1092ACEG+ pinout, MAX1092ACEG+ application, or MAX1092ACEG+ equivalent, key selection criteria include its software-configurable unipolar/bipolar input mode, internal track-and-hold with 6MHz full-power bandwidth, fast 2µs wake-up from shutdown, and QSOP-24 package compatibility with board-level layout constraints for embedded measurement circuits.
Technical Context
The MAX1092ACEG+ implements a charge-redistribution SAR architecture with an integrated track-and-hold stage, supporting both internal and external clock modes (7.6MHz max) and internal/external acquisition control via ACQMOD bit. Its analog front-end enables pseudo-differential operation across CH0/CH1 and CH2/CH3 pairs, with COM referenced zero-code voltage and ±0.5 LSB stability requirement during conversion.
Digital interfacing uses an active-low parallel bus (CS, WR, RD, INT) with HBEN-controlled 10-bit data multiplexing (D0/D8 and D1/D9), tri-state outputs, and programmable power-down modes reducing current to 2µA. The device features on-chip +2.5V bandgap reference (±20ppm/°C TC, ±100mV adjust range) and REFADJ pin for external reference disable or fine-tuning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit SAR ADC with no missing codes over temperature |
| Sampling Rate | Up to 400ksps - supports real-time monitoring of sub-200kHz signals |
| Analog Input Channels | 4 single-ended or 2 pseudo-differential channels - matches compact sensor arrays |
| Reference | +2.5V internal bandgap (±0.5 LSB INL impact) - eliminates external reference component |
| Supply Current | 2.5mA at 400ksps, 400µA at 10ksps, 2µA in shutdown - enables battery operation |
| Power Supply | +5V analog (VDD), +2.7V to +5.5V digital (VLOGIC) - decouples noise-sensitive analog and flexible logic domains |
| Full-Power Bandwidth | 6MHz - permits undersampling of high-frequency transients without aliasing filters |
| INL / DNL | ±0.5 LSB / ±1 LSB - ensures monotonicity and <0.1% end-point linearity error |
Pinout & Package
MAX1092ACEG+ is housed in a 24-pin QSOP package (5.3mm × 7.6mm body, 0.635mm pitch), optimized for high-density PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH3 | Analog input channels | Single-ended inputs; paired as CH0/CH1 and CH2/CH3 for pseudo-differential mode |
| COM | Analog ground reference | Sets zero-code voltage in single-ended mode; must remain stable within ±0.5 LSB |
| REF / REFADJ | Reference buffer I/O | REF outputs +2.5V internal reference; REFADJ disables internal ref when tied to VDD |
| VDD / VLOGIC | Separate analog/digital supplies | VDD = +5V analog rail; VLOGIC = +2.7V to +5.5V logic rail - isolates digital switching noise |
| CS / WR / RD / INT | Parallel control interface | Active-low handshaking signals; INT asserts low upon conversion completion |
| D0/D8–D7 / HBEN | 10-bit multiplexed data bus | HBEN selects MSB (D8,D9) or LSB (D0–D7) output - reduces bus width vs. full 10-bit parallel |
| GND | Common analog/digital ground | Single ground pin requires careful star-point layout to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input mode | Unipolar (0 to +2.5V) or bipolar (±1.25V) operation selected via control byte - simplifies signal conditioning |
| Internal track-and-hold | 6MHz full-power bandwidth with 3.2µs acquisition time - captures fast transients without external THS |
| Two power-down modes | Standby (10µA) and full shutdown (2µA) - extends battery life between measurements |
| Byte-wide (8+2) parallel interface | HBEN-multiplexed 10-bit output on 8 pins - saves PCB routing vs. dedicated 10-bit bus |
| On-chip +2.5V reference | ±20ppm/°C tempco, ±100mV adjust range via REFADJ - eliminates external reference IC and trim components |
| Input protection diodes | Clamps CH0–CH3 to GND–300mV / VDD+300mV - withstands ESD and overvoltage without external TVS |
Applications
| Industrial Sensor Interface | Patient Vital Sign Monitoring |
|---|---|
Use Scenario: Digitizing 4-channel analog outputs from RTD, thermocouple, or pressure sensors in PLC I/O modules. IC Role / Device Role / Timing Role: 10-bit ADC with software-selectable bipolar input and internal reference - replaces external op-amp gain stages and reference buffers. Use Value: Reduces BOM count by integrating reference, T/H, and multiplexer; 400ksps rate supports multi-sensor polling at >100Hz per channel. |
Use Scenario: Acquiring ECG, SpO₂, and respiration waveforms in portable clinical devices with strict power budgets. IC Role / Device Role / Timing Role: Low-power SAR ADC with 2µs wake-up and 2µA shutdown - enables duty-cycled sensing to extend battery life beyond 72 hours. Use Value: Internal +2.5V reference ensures consistent scaling across channels; pseudo-differential mode rejects common-mode noise from electrode interfaces. |
| Energy Meter Data Logging | Touchscreen Controller Interface |
Use Scenario: Sampling voltage/current transformer outputs in Class 0.5 electricity meters with anti-aliasing requirements. IC Role / Device Role / Timing Role: 6MHz full-power bandwidth ADC - allows undersampling of 50/60Hz fundamentals plus harmonics up to 3kHz. Use Value: Eliminates need for external anti-alias filter; ±0.5 LSB INL meets IEC 62053 linearity accuracy for revenue-grade metering. |
Use Scenario: Reading resistive touchscreen X/Y coordinate voltages in handheld HMIs with limited PCB area. IC Role / Device Role / Timing Role: 4-channel single-ended ADC with COM-referenced inputs - directly interfaces 4-wire touch panels without external op-amps. Use Value: Small QSOP-24 footprint fits tight space constraints; VLOGIC support for +3.3V microcontrollers simplifies level-shifting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit parallel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX1092BCPG+ | Same functionality but rated for -40°C to +85°C industrial temperature range vs. 0°C to +70°C for MAX1092ACEG+ | Required for outdoor or factory-floor deployments where ambient exceeds 70°C | Select MAX1092BCPG+ when extended temperature operation is mandatory; otherwise MAX1092ACEG+ suffices for commercial environments. |
| ADS7822U | 8-bit resolution, SPI interface, 200ksps max, no internal reference - requires external REF and serial controller | Suitable for cost-sensitive, lower-accuracy applications where serial interface is preferred over parallel | Choose ADS7822U only if 8-bit resolution and SPI are acceptable; MAX1092ACEG+ provides higher precision, integrated reference, and faster parallel throughput. |
Compared with MAX1092BCPG+, MAX1092ACEG+ offers lower cost and sufficient performance for commercial-grade instruments, while ADS7822U trades resolution, integration, and speed for interface simplicity and lower price - making MAX1092ACEG+ optimal for 10-bit, reference-free, parallel-interfaced designs.
Availability
MAX1092ACEG+ is available at Aetrix Electronics and suitable for industrial sensor interfaces, portable medical devices, energy metering systems, and touchscreen controllers requiring stable component supply across production lifecycles.
Supply support for MAX1092ACEG+ 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 MAX1092ACEG+ belongs to Maxim's low-power, high-accuracy data-acquisition ADC family, engineered specifically for battery-operated and space-constrained measurement systems needing integrated references and minimal external components.
FAQ
What is the operating temperature range for MAX1092ACEG+?
The MAX1092ACEG+ is specified for 0°C to +70°C ambient operation. This commercial-grade temperature range suits indoor instrumentation, consumer medical devices, and office automation equipment. For applications requiring extended thermal resilience, the pin-compatible MAX1092BCPG+ variant supports -40°C to +85°C and is available through Aetrix Electronics.
Does MAX1092ACEG+ require an external clock source?
No - MAX1092ACEG+ supports both internal and external clock modes. In internal clock mode (D7=1, D6=0), it generates its own 7.6MHz conversion clock, eliminating external timing components. External clock mode (D7=D6=1) accepts 100kHz–7.6MHz TTL/CMOS signals for precise synchronization with system timing domains.
How does the HBEN pin affect data readout on MAX1092ACEG+?
The HBEN (High Byte Enable) pin controls multiplexing of the 10-bit conversion result onto the 8-bit data bus: when HBEN=1, D0/D8 and D1/D9 carry the two MSBs (bits 9–8); when HBEN=0, D0–D7 carry the eight LSBs (bits 7–0). This allows full 10-bit resolution using only 8 data lines, reducing PCB trace count and connector pin count.
Can MAX1092ACEG+ operate with a 3.3V digital supply?
Yes - MAX1092ACEG+ accepts VLOGIC from +2.7V to +5.5V, fully supporting 3.3V microcontrollers and FPGAs. The digital I/Os (D0–D7, CS, WR, RD, INT) are level-shifted internally, ensuring clean signal integrity without external level translators when interfacing with 3.3V logic systems.
What is the purpose of the REFADJ pin on MAX1092ACEG+?
The REFADJ pin serves dual functions: as an output for the internal bandgap reference (when used with external reference circuitry), or as an input to disable the internal +2.5V reference when tied to VDD. When using an external reference, connecting REFADJ to VDD shuts down the internal reference amplifier, reducing quiescent current by ~15µA and preventing reference conflict.
MAX1092ACEG+ 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:
- -
MAX1092ACEG+ FAQ
1.How can I place an order for MAX1092ACEG+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1092ACEG+ 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 MAX1092ACEG+ reliable?
The price and inventory of MAX1092ACEG+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1092ACEG+ is usually 5 days.
3.What payment methods are accepted for MAX1092ACEG+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1092ACEG+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1092ACEG+?
MAX1092ACEG+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1092ACEG+ 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 MAX1092ACEG+?
For technical support, including MAX1092ACEG+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1092ACEG+ requirements.
6.How does Aetrix verify that MAX1092ACEG+ is sourced from the original manufacturer or authorized distributors?
All MAX1092ACEG+ 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 MAX1092ACEG+ meets industry standards.
7.What is the process for return or replacement of MAX1092ACEG+?
All MAX1092ACEG+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX1092ACEG+, 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 MAX1092ACEG+ part is unused and in its original packaging.
Return procedure for MAX1092ACEG+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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