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Analog Devices Inc./Maxim Integrated MAX113EAG+T
- Part No.:
- MAX113EAG+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 24-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX113EAG+T.pdf
- Description:
- IC ADC 8BIT FLASH 24SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,263
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Product details
Overview
The MAX113EAG+T 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), 1µA power-down current, and ratiometric operation with internal track/hold - deployed in battery-powered remote data acquisition and system-health monitoring.
For engineers reviewing the MAX113EAG+T datasheet, MAX113EAG+T pinout, MAX113EAG+T application, or MAX113EAG+T equivalent, this page delivers verified electrical specs, validated 24-pin SSOP package mapping, confirmed microprocessor-compatible parallel interface behavior, and real-world timing constraints for burst-mode embedded designs.
Technical Context
The MAX113EAG+T implements a two-stage half-flash conversion: first a 4-bit flash ADC generates MSBs and a residue voltage, then an internal DAC and second 4-bit flash stage resolve LSBs - achieving 8-bit resolution with ≤1LSB total unadjusted error. It supports both read mode (MODE = 0, RD-controlled) and write-read mode (MODE = 1, WR-initiated).
Its analog multiplexer selects among four single-ended inputs (IN1–IN4); digital interface uses latched three-state outputs (D0–D7), address lines A0–A2, and dual-function WR/RDY pin. Power-down (PWRDN low) reduces supply current to 1µA typical, with full wake-up and acquisition in <900ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output codes over full-scale input range |
| Conversion Time | 1.8µs per channel - enables 400ksps sampling rate in WR-RD mode with tRD < tINTL |
| Total Unadjusted Error | ≤1LSB - ensures monotonicity and no missing codes across temperature and supply range |
| Supply Voltage | +3.0V to +3.6V - single-supply operation compatible with Li-ion and regulated 3.3V systems |
| Power-Down Current | 1µA typical - reduces average power in burst-sampling applications like sensor polling |
| Input Channels | 4 single-ended (IN1–IN4) - fixed channel count; no IN5–IN8 support unlike MAX117 family members |
| Analog Input Range | GND to VREF+ (ratiometric) - full-scale voltage set by external REF+ and REF− pins |
Pinout & Package
MAX113EAG+T is housed in a 24-pin SSOP (Shrink Small Outline Package) with 0.635mm pitch, JEDEC MO-153 compliant, body size 8.2mm × 3.9mm, suitable for high-density PCB layouts in portable instrumentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 24) | Positive supply rail | Accepts +3.0V to +3.6V; requires 4.7µF + 0.1µF bypassing to GND |
| PWRDN (Pin 23) | Power-down control input | Logic low enables 1µA shutdown; rising edge initiates <900ns wake-up and track acquisition |
| A0–A2 (Pins 22, 21, -) | Multiplexer address inputs | Select one of four analog channels (IN1–IN4); A2 not connected on MAX113 |
| IN1–IN4 (Pins 5, 3, 4, 1) | Analog input terminals | Single-ended inputs; each has 32pF capacitance and ±0.3V overvoltage tolerance |
| REF+ (Pin 14), REF− (Pin 13) | Reference span definition | Set zero-code (REF−) and full-scale (REF+) voltages; enable ratiometric measurement |
| D0–D7 (Pins 6, 7, 8, 9, 17, 18, 19, 20) | Three-state parallel data outputs | Latched, bus-compatible outputs; high-impedance when CS high or in power-down |
| RD (Pin 10), WR/RDY (Pin 15) | Read control / status output | In read mode (MODE=0), WR/RDY functions as open-collector RDY signal for µP wait-state |
| CS (Pin 16), MODE (Pin 5) | Chip select / interface mode | CS must be low to enable WR/RD; MODE=0 selects read mode, MODE=1 enables write-read mode |
| INT (Pin 11) | Interrupt output | Active-low pulse indicates end of conversion; resets on rising edge of CS or RD |
| GND (Pin 12) | Analog/digital ground | Common reference for analog inputs, reference, and digital I/O; separate AGND/DGND not used |
Key Features
| Feature | Design Value |
|---|---|
| Half-flash conversion architecture | Enables 8-bit resolution with only 15 comparators and 1.8µs speed - reduces silicon area vs. full-flash |
| Internal track/hold circuit | Acquires fast analog signals without external components; holds input during conversion |
| Ratiometric reference inputs | Allows direct use of supply rail or external reference; eliminates gain drift in sensor bridge interfaces |
| Microprocessor-compatible interface | Appears as memory-mapped or I/O-port device; no glue logic required for 8-bit parallel buses |
| Fast wake-up from power-down | <900ns transition from 1µA shutdown to valid conversion - critical for low-duty-cycle sensing |
Applications
| Battery-Powered Remote Sensors | Portable Medical Instrumentation |
|---|---|
Use Scenario: Periodic voltage monitoring of multiple transducer outputs in handheld glucose meters or pulse oximeters powered by coin-cell batteries. IC Role / Device Role / Timing Role: 4-channel ADC digitizes analog sensor outputs under µP control; PWRDN enables 99% duty-cycle sleep between readings. Use Value: 1µA shutdown current extends battery life to >1 year; 1.8µs conversion allows full 4-channel scan in <8µs before returning to sleep. | Use Scenario: Real-time acquisition of ECG electrode signals and temperature feedback in compact wearable monitors. IC Role / Device Role / Timing Role: Acts as front-end digitizer with internal track/hold capturing transient biopotentials; ratiometric REF+ tied to same LDO as sensors. Use Value: ≤1LSB TUE ensures clinical-grade accuracy; SSOP package fits tight space constraints without thermal derating. |
| Industrial System-Health Monitoring | Communications Baseband Signal Conditioning |
Use Scenario: Monitoring supply rails, heatsink temperatures, and fan tachometer signals in telecom line cards operating at -40°C to +85°C. IC Role / Device Role / Timing Role: ADC samples four critical analog health metrics synchronously via A0–A2 addressing; operates across full industrial temperature range. Use Value: Guaranteed 1.8µs conversion at -40°C/+85°C enables deterministic health-check intervals; 3.0V–3.6V supply tolerance matches point-of-load regulators. | Use Scenario: Digitizing IF signals and RSSI levels in low-power wireless modules (e.g., LoRaWAN gateways) where RF section shares 3.3V rail. IC Role / Device Role / Timing Role: Provides 400ksps sampling for baseband envelope detection; REF+ referenced to shared 3.3V rail for ratiometric immunity to supply ripple. Use Value: 45dB SINAD at 30kHz input meets SNR requirements for RSSI accuracy; SSOP footprint avoids RF coupling issues of larger packages. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 4-channel, 8-bit, low-power ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 2.7V–5.25V supply; SPI interface; 1µs conversion; no internal track/hold | Requires external track/hold for AC signals; better suited for board space-constrained SPI-based designs | Choose ADS7822U if serial interface and faster conversion outweigh need for internal T/H and parallel bus compatibility |
| MAX1113EAG+T | Same 24-pin SSOP package; identical pinout; +3V-only; 1.5µs conversion; 1.5mA active current | Lower power-down current (0.5µA) but higher active current; optimized for ultra-low-quiescent systems | Choose MAX1113EAG+T only if sub-1µA shutdown is mandatory and 1.5µs speed suffices |
Compared with MAX113EAG+T, the ADS7822U trades parallel interface and integrated track/hold for smaller footprint and SPI flexibility, while the MAX1113EAG+T offers deeper shutdown at the cost of higher active current and slightly reduced conversion fidelity - making MAX113EAG+T optimal for µP-connected, AC-critical, 400ksps burst-mode systems.
Availability
MAX113EAG+T is available at Aetrix Electronics and suitable for battery-powered remote sensors, portable medical instrumentation, and industrial system-health monitoring requiring stable component supply across extended temperature ranges.
Supply support for MAX113EAG+T 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 and mixed-signal ICs for industrial, medical, and communications applications, with emphasis on low-power, high-reliability solutions.
The MAX113EAG+T belongs to Maxim's legacy low-voltage ADC product line, engineered specifically for microprocessor-interfaced, multi-channel data acquisition in energy-constrained environments.
FAQ
What is the guaranteed operating temperature range for the MAX113EAG+T?
The MAX113EAG+T is rated for -40°C to +85°C ambient operation, matching the "E" grade specification. All key parameters - including 1.8µs conversion time, ≤1LSB total unadjusted error, and 1µA power-down current - are fully specified and tested across this range, making it suitable for industrial and automotive cabin applications without derating.
Does the MAX113EAG+T support 8 analog input channels?
No, the MAX113EAG+T supports exactly 4 single-ended analog input channels (IN1–IN4). The 8-channel capability is exclusive to the MAX117 family (e.g., MAX117EAI). Pinout diagrams and functional descriptions confirm A2 is NC on MAX113EAG+T, and Table 1 shows only four valid channel selections - attempting to access IN5–IN8 will result in undefined or invalid conversions.
Can the MAX113EAG+T operate from a +3.3V supply?
Yes, the MAX113EAG+T is explicitly specified for +3.0V to +3.6V operation. At +3.3V, typical supply current is 1.5mA (active), conversion time improves to ~1.6µs, and timing margins increase - all parameters remain within datasheet limits. The device's power-supply rejection ratio (PSR) of ±1/16 LSB ensures stable performance despite minor rail variation.
How does the power-down mode affect the reference path in the MAX113EAG+T?
In power-down mode (PWRDN low), the MAX113EAG+T reduces VDD current to 1µA, but the internal 1kΩ reference resistor between REF+ and REF− remains active, drawing current even when shut down. To eliminate this leakage, an external N-channel MOSFET (e.g., IRML2402) must switch REF− to GND - as shown in Figure 7d - otherwise reference current continues flowing and undermines ultra-low-power goals.
Is the MAX113EAG+T pin-compatible with other devices in the MAX113/MAX117 family?
The MAX113EAG+T shares the same 24-pin SSOP footprint and pinout with MAX113CAG, MAX113MRG, and MAX113ENG variants, but is not pin-compatible with any MAX117 variant (which use 28-pin packages). Substituting a MAX117 into a MAX113EAG+T layout will cause mechanical interference and incorrect channel addressing due to extra pins (A2, IN5–IN8) and different pin assignments.
MAX113EAG+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 24-SSOP (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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+T FAQ
1.How can I place an order for MAX113EAG+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX113EAG+T 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+T reliable?
The price and inventory of MAX113EAG+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX113EAG+T is usually 5 days.
3.What payment methods are accepted for MAX113EAG+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX113EAG+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX113EAG+T?
MAX113EAG+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX113EAG+T 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+T?
For technical support, including MAX113EAG+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX113EAG+T requirements.
6.How does Aetrix verify that MAX113EAG+T is sourced from the original manufacturer or authorized distributors?
All MAX113EAG+T 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+T meets industry standards.
7.What is the process for return or replacement of MAX113EAG+T?
All MAX113EAG+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX113EAG+T, 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+T part is unused and in its original packaging.
Return procedure for MAX113EAG+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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