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Analog Devices Inc./Maxim Integrated MAX1093AEEG
- Part No.:
- MAX1093AEEG
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
MAX1093AEEG.pdf
- Description:
- IC ADC 10BIT SAR 24QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,944
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Product details
Overview
MAX1093AEEG from Maxim Integrated is a 10-bit successive-approximation ADC with 4-channel single-ended / 2-channel pseudo-differential analog input multiplexer, +2.5V internal reference, byte-wide parallel (8+2) interface, and 250ksps sampling rate. It operates from a single +3V analog supply and supports digital logic levels from +1.8V to +3.6V via VLOGIC, enabling direct interfacing with low-voltage microprocessors in portable data-acquisition systems.
For engineers reviewing the MAX1093AEEG datasheet, MAX1093AEEG pinout, MAX1093AEEG application, or MAX1093AEEG equivalent, this page delivers verified electrical parameters, confirmed package mapping (24-pin QSOP), validated timing behavior (3.6µs conversion time, 2µs wake-up), and real-world use context for industrial sensing and battery-powered monitoring.
Technical Context
The MAX1093AEEG implements a charge-redistribution SAR architecture with integrated track/hold, supporting both internal and external clock modes (4.8MHz max) and internal/external acquisition control via software-configurable ACQMOD bit. Its analog front-end includes programmable unipolar/bipolar and single-ended/pseudo-differential operation, with COM referenced zero-code voltage stability requirement of ±0.5 LSB during conversion.
Conversion is initiated by a control byte (D7–D0) that configures channel selection (A2–A0), input mode (SGL/DIF), polarity (UNI/BIP), and power-down state (PD1/PD0). Output data appears on D0–D9 in multiplexed 8+2 format controlled by HBEN, with INT asserting low upon completion and tri-stating when CS goes high.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes with monotonic transfer function |
| Sampling Rate | 250ksps - supports real-time capture of signals up to 125kHz Nyquist bandwidth |
| INL / DNL | ±0.5 LSB / ±1 LSB - ensures accurate code transitions and minimal missing codes over temperature |
| Reference | +2.5V internal - eliminates need for external reference; TCREF = ±2ppm/°C ensures stable full-scale accuracy |
| Power Consumption | 1.9mA at 250ksps - enables <6mW total system power with +3V supply |
| Acquisition Time | 3.2µs - defines minimum inter-conversion interval for full accuracy with ≤3kΩ source impedance |
| Full-Power Bandwidth | 3MHz - allows undersampling of transient events while maintaining SNR > 60dB |
Pinout & Package
MAX1093AEEG is housed in a 24-pin QSOP package (5.0mm × 7.5mm body, 0.635mm pitch), optimized for space-constrained PCB layouts in portable instrumentation.
| 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 |
| COM | Analog Ground Reference | Sets zero-code voltage in single-ended mode; must remain stable to ±0.5 LSB during conversion |
| REF / REFADJ | Reference Buffer I/O | REF outputs +2.5V internal reference; REFADJ disables internal bandgap when tied to VDD for external reference use |
| VDD / VLOGIC | Separate Analog/Digital Supplies | VDD = +2.7V to +3.6V analog rail; VLOGIC = +1.8V to +3.6V powers digital I/O, enabling mixed-voltage system interfacing |
| CS / WR / RD / CLK | Parallel Interface Controls | Standard µP-compatible strobes; CS high places D0–D9 and INT in high-impedance state |
| D0/D8–D7 / HBEN / INT | Data & Status Signals | HBEN selects MSB/LSB byte on D0–D7; INT asserts low when conversion result is valid and ready to read |
Key Features
| Feature | Design Value |
|---|---|
| Software-configurable input topology | Single-ended (4 channels) or pseudo-differential (2 pairs) with programmable unipolar/bipolar range selection |
| Low-power operation with fast wake-up | 2µs wake-up from shutdown; 2µA shutdown current enables battery life extension in intermittent-sampling applications |
| Flexible clocking architecture | Internal 3MHz clock (no external crystal required) or external 100kHz–4.8MHz clock with selectable acquisition mode (internal/external) |
| Byte-wide parallel interface | 8+2 multiplexed data bus with HBEN control simplifies connection to 8-bit microcontrollers without glue logic |
| Integrated analog protection | Input clamping diodes allow safe operation with analog inputs ranging from (GND − 300mV) to (VDD + 300mV) |
Applications
| Industrial Sensor Monitoring | Portable Patient Vital Signs Logger |
|---|---|
Use Scenario: Continuous acquisition of temperature, pressure, and humidity sensor outputs in factory-floor PLC modules. IC Role / Device Role / Timing Role: Primary analog front-end ADC converting four analog sensor signals into digital data for local preprocessing and CAN bus transmission. Use Value: 250ksps throughput and ±0.5 LSB INL ensure precise multi-sensor synchronization and calibration traceability across operating temperature (−40°C to +85°C). |
Use Scenario: Battery-powered wearable device capturing ECG, SpO₂, and respiration waveforms during ambulatory monitoring. IC Role / Device Role / Timing Role: Low-power ADC digitizing conditioned biopotential signals with pseudo-differential input to reject common-mode noise from electrode interfaces. Use Value: 1.9mA active current and 2µA shutdown current extend coin-cell battery life to >6 months between charges under typical duty-cycled sampling. |
| Energy Meter Data Acquisition | Touch Screen Controller Interface |
Use Scenario: Sampling voltage and current transformer outputs in Class 0.5 smart electricity meters for real-time power calculation. IC Role / Device Role / Timing Role: High-accuracy ADC providing synchronized dual-channel sampling (voltage + current) with <1 LSB gain/offset drift over temperature. Use Value: ±2ppm/°C reference TC and 76dB IMD support metrology-grade THD performance (<−72dB) required for ANSI C12.20 compliance. |
Use Scenario: Digitizing analog X/Y coordinate signals from resistive touch panels in handheld HMI displays. IC Role / Device Role / Timing Role: Fast-response ADC performing rapid channel scanning (CH0–CH3) to detect touch position and pressure with <10µs latency per coordinate. Use Value: 3.2µs acquisition time and 3MHz full-power bandwidth enable sub-millisecond touch response even with high-impedance panel traces. |
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 | Lacks internal +2.5V reference and parallel interface; requires external ref and serial host controller | Choose only if 8-bit resolution suffices and board layout favors serial interface over parallel bus routing |
| MAX1166BCAP | 12-bit resolution, I²C interface, internal reference, 100ksps, 16-pin QFN | Higher resolution but slower speed and serial interface; smaller package but no VLOGIC voltage flexibility | Select when higher precision is critical and system already uses I²C; not suitable for µP parallel bus architectures |
Compared with MAX1093AEEG, ADS7822U trades resolution and interface simplicity for lower cost and smaller footprint, while MAX1166BCAP offers greater precision at the expense of sampling speed and parallel compatibility-making MAX1093AEEG optimal for µP-based designs requiring 10-bit accuracy, 250ksps throughput, and mixed-voltage I/O.
Availability
MAX1093AEEG is available at Aetrix Electronics and suitable for industrial sensor monitoring, portable patient vital signs logging, and energy meter data acquisition requiring stable component supply across extended temperature ranges (−40°C to +85°C).
Supply support for MAX1093AEEG 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 MAX1093AEEG belongs to Maxim's precision data-converter product line, designed specifically for low-power, space-constrained systems needing reliable 10-bit digitization with flexible input configuration and robust timing control.
FAQ
What is the operating temperature range for MAX1093AEEG?
The MAX1093AEEG is rated for operation from −40°C to +85°C, as indicated by the 'E' grade suffix in its part number. This extended industrial temperature range ensures stable performance in harsh environments such as factory automation equipment and outdoor energy meters, with guaranteed specifications including ±0.5 LSB INL and ±1 LSB DNL maintained across the full range.
Does MAX1093AEEG require an external clock to operate?
No, MAX1093AEEG does not require an external clock. It features an integrated 3MHz internal clock that enables full-speed 250ksps operation without external timing components. The CLK pin must be tied to VDD or GND in internal clock mode; leaving it floating is prohibited. External clock mode (100kHz–4.8MHz) is optional and used when precise aperture control or synchronization with system clocks is needed.
How many analog input channels does MAX1093AEEG support?
MAX1093AEEG supports four single-ended analog input channels (CH0–CH3) or two pseudo-differential channel pairs (CH0/CH1 and CH2/CH3). This is distinct from the pin-compatible MAX1091, which offers eight single-ended or four pseudo-differential channels. Channel selection is performed via software-configurable address bits (A2–A0) in the control byte written to D7–D0.
Can MAX1093AEEG interface directly with a +1.8V microcontroller?
Yes, MAX1093AEEG can interface directly with a +1.8V microcontroller using its VLOGIC pin. When VLOGIC is supplied at +1.8V, the digital I/O pins (D0–D9, CS, WR, RD, INT, HBEN) operate at compatible logic thresholds (VIH = 0.5V, VIL = 1.5V), while the analog section remains powered by a separate +3V VDD rail-enabling true mixed-voltage system integration without level-shifting circuitry.
What is the purpose of the HBEN pin on MAX1093AEEG?
The HBEN (High Byte Enable) pin on MAX1093AEEG controls multiplexing of the 10-bit conversion result onto the 8-bit data bus (D0–D7). When HBEN = 1, D0–D7 carry the two most significant bits (D8, D9); when HBEN = 0, they carry the eight least significant bits (D0–D7). This allows standard 8-bit microprocessors to read the full 10-bit result in two consecutive cycles without requiring wider data paths or additional latches.
MAX1093AEEG 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:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 250k
- 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:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 1.8V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-QSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX1093AEEG FAQ
1.How can I place an order for MAX1093AEEG through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1093AEEG 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 MAX1093AEEG reliable?
The price and inventory of MAX1093AEEG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1093AEEG is usually 5 days.
3.What payment methods are accepted for MAX1093AEEG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1093AEEG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1093AEEG?
MAX1093AEEG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1093AEEG 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 MAX1093AEEG?
For technical support, including MAX1093AEEG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1093AEEG requirements.
6.How does Aetrix verify that MAX1093AEEG is sourced from the original manufacturer or authorized distributors?
All MAX1093AEEG 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 MAX1093AEEG meets industry standards.
7.What is the process for return or replacement of MAX1093AEEG?
All MAX1093AEEG units undergo pre-shipment inspection (PSI). If there is an issue with MAX1093AEEG, 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 MAX1093AEEG part is unused and in its original packaging.
Return procedure for MAX1093AEEG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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