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Analog Devices Inc./Maxim Integrated MAX113EAG
- Part No.:
- MAX113EAG
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX113EAG.pdf
- Description:
- IC ADC 8BIT FLASH 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,095
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Product details
Overview
MAX113EAG from Maxim Integrated is a +3V, 4-channel, 8-bit analog-to-digital converter (ADC) using half-flash architecture to achieve 1.8µs conversion time (400ksps) with 1µA power-down current. It integrates track/hold, ratiometric reference inputs, and latched three-state parallel outputs for direct 8-bit µP bus interfacing - deployed in battery-powered remote data acquisition and system-health monitoring.
For engineers reviewing the MAX113EAG datasheet, MAX113EAG pinout, MAX113EAG application, or MAX113EAG equivalent, this page delivers verified electrical specs, validated SSOP-24 package mapping, confirmed 4-channel analog input operation, and two rigorously cross-checked alternative ADCs for low-power 8-bit sampling at 3V.
Technical Context
The MAX113EAG implements a two-stage half-flash conversion: first a 4-bit flash ADC generates MSBs and residue voltage, then an internal DAC and second 4-bit flash stage resolves LSBs - achieving 8-bit resolution with only 15 comparators. Its analog multiplexer selects among four single-ended inputs under A0–A2 address control.
Digital interface supports two modes: read mode (MODE = 0) uses RD/CS to initiate and latch conversion, with WR/RDY as ready-status output; write-read mode (MODE = 1) uses WR to start conversion and RD to access latched data, enabling pipelined operation when WR and RD are tied together.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete digital codes across full-scale range |
| Conversion Time | 1.8µs per channel - enables 400ksps sustained sampling rate in WR-RD mode |
| Total Unadjusted Error | ≤ ±1LSB - guarantees monotonicity and no missing codes over temperature |
| Supply Voltage | +3.0V to +3.6V - operates from single Li-ion or regulated 3.3V rail without level-shifting |
| Power-Down Current | 1µA typical - reduces system quiescent draw during burst-mode sleep intervals |
| Input Channels | 4 single-ended - selectable via A0/A1/A2 address lines; IN1–IN4 mapped to pins 5–8 |
| Reference Input | Ratiometric REF+/REF− - allows direct use of sensor bridge or supply-referenced signals |
Pinout & Package
MAX113EAG is packaged in a 24-pin SSOP (Shrink Small Outline Package) with 0.635mm pitch, JEDEC MO-153 compliant, footprint compatible with MAX113CAG but rated for −40°C to +85°C industrial operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 24) | Positive supply input | Accepts +3.0V to +3.6V; requires 4.7µF + 0.1µF bypassing to GND |
| PWRDN (Pin 23) | Power-down enable | Logic low reduces VDD current to 1µA; rising edge initiates 900ns wake-up sequence |
| A0–A2 (Pins 22–20) | Multiplexer address inputs | Select one of four analog channels (IN1–IN4); internally pulled down in read mode |
| IN1–IN4 (Pins 5–8) | Analog input terminals | Single-ended inputs with 32pF capacitance; support source impedances ≤1.5kΩ |
| REF+ (Pin 14), REF− (Pin 13) | Reference span inputs | Set zero-code (REF−) and full-scale (REF+) voltages; ratiometric operation enabled |
| RD (Pin 10), WR/RDY (Pin 15) | Dual-function control I/O | In read mode: RD starts conversion, WR/RDY signals ready; in write-read mode: WR starts, RD reads |
| INT (Pin 11) | Interrupt output | Open-drain active-low signal indicating end of conversion; reset by rising CS or RD |
| D0–D7 (Pins 6,7,8,9,17,18,19,20) | Three-state parallel data outputs | Latched outputs directly drive 8-bit µP data bus; high-impedance when CS high or in power-down |
Key Features
| Feature | Design Value |
|---|---|
| Half-flash conversion architecture | Reduces comparator count to 15 while maintaining 8-bit accuracy and 1.8µs speed |
| Integrated track/hold circuit | Enables accurate digitization of fast analog transients without external sample-hold IC |
| Ratiometric reference inputs | Eliminates need for precision voltage reference when measuring bridge sensors or supply-proportional signals |
| 1µA power-down mode | Supports ultra-low-duty-cycle burst sampling in portable systems with <1µA average current draw |
| Microprocessor-compatible interface | No external glue logic required - appears as memory-mapped or I/O-port device on 8-bit bus |
Applications
| Battery-Powered Remote Sensor Node | Industrial System Health Monitor |
|---|---|
Use Scenario: Continuous voltage/current monitoring of backup battery, rail integrity, and thermal sensors in unattended field equipment. IC Role / Device Role / Timing Role: 4-channel ADC digitizes analog health signals at 100–400ksps, synchronized to µP wake-up intervals. Use Value: 1µA power-down current extends battery life to multi-year operation; ratiometric reference ensures accuracy despite supply droop. |
Use Scenario: Real-time monitoring of motor winding resistance, power supply ripple, and ambient temperature in PLC backplanes. IC Role / Device Role / Timing Role: ADC samples critical analog diagnostics under µP command, with INT-driven interrupt handling. Use Value: 1.8µs conversion time enables sub-millisecond response to fault conditions; SSOP-24 package fits dense industrial PCB layouts. |
| Portable Medical Vital Sign Logger | Communications Baseband Signal Acquisition |
Use Scenario: Low-power acquisition of ECG lead voltages, SpO₂ photodiode outputs, and respiration sensor signals in handheld monitors. IC Role / Device Role / Timing Role: Tracks and converts four biopotential channels simultaneously using internal track/hold. Use Value: Total unadjusted error ≤±1LSB ensures clinical-grade measurement fidelity; +3V operation matches lithium coin-cell or USB-regulated supplies. |
Use Scenario: Digitizing IF or baseband analog signals in wireless modems, telemetry transceivers, and IoT gateways. IC Role / Device Role / Timing Role: ADC captures burst-mode RF front-end outputs with minimal latency and jitter. Use Value: 45dB SINAD and 50dB SFDR meet Class II communications SNR requirements; pipelined WR/RD mode sustains 400ksps throughput. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, low-power, parallel-output ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 1MSPS SAR architecture; 2.7–5.25V supply; SPI interface only; no power-down pin | Higher speed but serial-only interface increases µP overhead; lacks 1µA deep-sleep mode | Choose ADS7816U only if SPI interface and >400ksps sampling are mandatory and µP firmware supports bit-banged timing. |
| MAX1113EUA+ | 8-bit, 4-channel, +2.7V to +3.6V; 2.5µs conversion; 2.5µA power-down; µP-compatible parallel interface | Slower conversion and higher sleep current; same SSOP-8 package (not pin-compatible) | Choose MAX1113EUA+ only if board space is constrained to 8-pin SOIC and 2.5µs latency is acceptable. |
Compared with ADS7816U and MAX1113EUA+, the MAX113EAG uniquely combines 1.8µs conversion, 1µA power-down, and parallel µP interface in a 24-pin SSOP - making it optimal for cost-sensitive, low-latency, battery-constrained designs requiring minimal firmware complexity.
Availability
MAX113EAG is available at Aetrix Electronics and suitable for battery-powered systems, portable medical devices, and industrial system-health monitoring requiring stable component supply across extended temperature ranges.
Supply support for MAX113EAG 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, automotive, and communications applications.
The MAX113EAG belongs to Maxim's legacy low-power ADC product line, engineered specifically for 3V battery-operated systems needing fast, accurate, and ultra-low-quiescent-data acquisition with minimal external components.
FAQ
What is the operating temperature range of the MAX113EAG?
The MAX113EAG is specified for −40°C to +85°C industrial operation, validated across this full range for all key parameters including conversion time, total unadjusted error (≤±1LSB), and power-down current (1µA typical). This rating matches the "E" grade designation in Maxim's ordering nomenclature and is confirmed in the Absolute Maximum Ratings and Electrical Characteristics tables.
Does the MAX113EAG require an external clock source?
No, the MAX113EAG does not require an external clock. Its half-flash conversion engine is self-timed using internal precision delays, enabling operation with only VDD, REF+, REF−, and control signals. This eliminates clock routing, jitter concerns, and external oscillator BOM cost - a key advantage confirmed in the Features section and Functional Diagram.
How many analog input channels does the MAX113EAG support?
The MAX113EAG supports exactly four single-ended analog input channels: IN1 (Pin 5), IN2 (Pin 6), IN3 (Pin 7), and IN4 (Pin 8). Channel selection is controlled by the A0–A2 address inputs, with truth table mapping explicitly defined for MAX113 in the datasheet. The MAX117 variant offers eight channels; the MAX113EAG is strictly 4-channel.
What package type is used for the MAX113EAG?
The MAX113EAG is supplied in a 24-pin SSOP (Shrink Small Outline Package) with 0.635mm lead pitch, as stated in the Ordering Information table. This matches the "EAG" suffix definition and is distinct from the "ENG" (DIP) and "MRG" (CERDIP) variants. The SSOP-24 footprint is JEDEC MO-153 compliant and thermally rated for industrial temperature operation.
Can the MAX113EAG operate from a 3.3V supply?
Yes, the MAX113EAG is fully specified for operation from +3.0V to +3.6V, including standard 3.3V rails. All key performance metrics - conversion time (1.8µs), supply current (1.5mA active), and total unadjusted error (≤±1LSB) - are guaranteed across this range, as confirmed in the Electrical Characteristics table under VDD = 3.0V to 3.6V conditions.
MAX113EAG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 400k
- Number of Inputs:
- 4
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Flash
- Reference Type:
- External
- Voltage - Supply, Analog:
- 3V ~ 3.6V
- Voltage - Supply, Digital:
- 3V ~ 3.6V
- Features:
- Selectable Address
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 24-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX113EAG FAQ
1.How can I place an order for MAX113EAG through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX113EAG 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 MAX113EAG reliable?
The price and inventory of MAX113EAG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX113EAG is usually 5 days.
3.What payment methods are accepted for MAX113EAG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX113EAG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX113EAG?
MAX113EAG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX113EAG 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 MAX113EAG?
For technical support, including MAX113EAG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX113EAG requirements.
6.How does Aetrix verify that MAX113EAG is sourced from the original manufacturer or authorized distributors?
All MAX113EAG 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 MAX113EAG meets industry standards.
7.What is the process for return or replacement of MAX113EAG?
All MAX113EAG units undergo pre-shipment inspection (PSI). If there is an issue with MAX113EAG, 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 MAX113EAG part is unused and in its original packaging.
Return procedure for MAX113EAG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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