My Inquiry
My Account
Analog Devices Inc./Maxim Integrated MAX11601EKA+T
- Part No.:
- MAX11601EKA+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- SOT-23-8
- Datasheet:
-
MAX11601EKA+T.pdf
- Description:
- IC ADC 8BIT SAR SOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:4,747
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MAX11601EKA+T from Maxim Integrated is an 8-bit, 4-channel, low-power analog-to-digital converter with integrated track/hold, 2.048V internal reference, I²C-compatible 2-wire interface, and single 2.7V–3.6V supply operation. It delivers 188ksps throughput with 350µA supply current and supports software-configurable unipolar/bipolar and single-ended/pseudo-differential input modes for battery-powered sensor monitoring and system supervision.
For engineers reviewing the MAX11601EKA+T datasheet, MAX11601EKA+T pinout, MAX11601EKA+T application, or MAX11601EKA+T equivalent, key selection criteria include its 4-channel count, 2.048V internal reference, SOT23-8 package, ±2 LSB total unadjusted error, and guaranteed -40°C to +85°C industrial temperature range.
Technical Context
The MAX11601EKA+T employs successive-approximation architecture with internal track/hold capacitor (CT/H) and switched-capacitor DAC. Its analog input multiplexer routes up to four single-ended or two pseudo-differential channels to the T/H stage, where acquisition time depends on source impedance and clock mode (internal or external).
It uses a dedicated 2-wire serial interface compliant with I²C Fast Mode (400kHz) and High-Speed Mode (1.7MHz), supporting bidirectional communication with master controllers. The device features AutoShutdown™, reducing supply current to <1µA between conversions at low throughput rates.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - provides 256 discrete output codes for moderate-precision sensing applications. |
| Sampling Rate | 188ksps - enables real-time capture of signals up to ~200kHz full-linear bandwidth. |
| Total Unadjusted Error | ±2 LSB - defines worst-case deviation from ideal transfer function without calibration. |
| Supply Voltage | 2.7V to 3.6V - compatible with common Li-ion and 3.3V logic systems, eliminating level-shifting needs. |
| Internal Reference | 2.048V - stable, factory-trimmed reference enabling ratiometric measurements with 120ppm/°C tempco. |
| Power Consumption | 350µA at 188ksps; 1µA in power-down - extends battery life in portable instrumentation. |
| Input Configuration | 4 single-ended or 2 pseudo-differential channels - supports flexible signal routing without external MUX. |
Pinout & Package
MAX11601EKA+T is housed in an 8-pin SOT23 package - compact, surface-mountable, and optimized for space-constrained PCB layouts in handheld and remote systems.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | AIN0 | Analog input channel 0 - accepts unipolar (0–2.048V) or bipolar (±1.024V) signals in configured mode. |
| 2 | AIN1 | Analog input channel 1 - shares same configuration and reference as AIN0 via shared setup register. |
| 3 | AIN2 | Analog input channel 2 - selectable via CS[3:0] bits; supports pseudo-differential pairing with AIN3/REF. |
| 4 | AIN3/REF | Configurable terminal - functions as AIN3 in single-ended mode or reference input/output when SEL[2:1]=11. |
| 5 | SCL | Serial clock input - controls timing for I²C read/write cycles; supports 400kHz Fast Mode and 1.7MHz High-Speed Mode. |
| 6 | SDA | Serial data I/O - bidirectional line for transmitting conversion results and receiving configuration bytes. |
| 7 | GND | Analog/digital ground reference - must be connected to low-impedance system ground plane for noise immunity. |
| 8 | VDD | Positive supply - requires 0.1µF ceramic bypass capacitor to GND to suppress switching noise and ensure stability. |
Key Features
| Feature | Design Value |
|---|---|
| AutoShutdown™ | Reduces IDD to <1µA between conversions - eliminates need for external enable control in intermittent-sampling designs. |
| I²C High-Speed Mode | 1.7MHz clock rate - cuts conversion readout time by >4× vs. standard I²C, improving system responsiveness. |
| Software-Configurable Input Modes | Single-ended/pseudo-differential and unipolar/bipolar selection via register bits - enables one hardware design to serve multiple sensor types. |
| Internal Track/Hold | 588ns acquisition time - allows accurate sampling of fast transients without external sample-hold circuitry. |
| Channel-Scan FIFO | Supports automatic sequential conversion of all 4 channels - simplifies firmware for multi-sensor polling loops. |
Applications
| Battery-Powered Test Equipment | Medical Instrumentation |
|---|---|
|
Use Scenario: Portable multimeter measuring voltage, current, and resistance with auto-ranging. IC Role / Device Role / Timing Role: Primary ADC digitizing front-end sensor outputs under microcontroller control via I²C. Use Value: 350µA active current and AutoShutdown™ extend battery life beyond 100 hours per charge cycle. |
Use Scenario: Wearable vital-sign monitor acquiring ECG, temperature, and SpO₂ signals. IC Role / Device Role / Timing Role: Low-noise, low-power ADC interfacing analog front-end sensors to ultra-low-power MCU. Use Value: 2.048V internal reference ensures stable ratiometric measurement accuracy across varying battery voltage. |
| Handheld Portable Applications | System Supervision |
|
Use Scenario: Industrial handheld scanner logging environmental parameters (temp/humidity/pressure). IC Role / Device Role / Timing Role: Multi-channel ADC converting sensor outputs in burst mode during button-press events. Use Value: 4-channel capability eliminates need for external analog multiplexer, reducing BOM count and board area. |
Use Scenario: Embedded controller monitoring supply rails, temperature, and fan tachometer in networking equipment. IC Role / Device Role / Timing Role: System health monitor ADC providing periodic status updates over I²C bus. Use Value: Guaranteed -40°C to +85°C operation ensures reliability in thermally stressed chassis environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit multichannel ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-pin SOIC; SPI interface; 2.5V–5.25V supply; no internal reference - requires external 2.048V ref. | Requires external reference and SPI host support; lacks AutoShutdown and channel-scan FIFO. | Choose when SPI is preferred and external reference already exists in system. |
| MCP3204-I/P | 8-bit resolution; 4-channel SPI ADC; 2.7V–5.5V supply; 2.5V internal reference; DIP-14 package. | Larger through-hole package; no I²C support; higher 500µA active current; no AutoShutdown. | Choose for legacy through-hole prototyping or when I²C bus is unavailable. |
Compared with ADS7822U and MCP3204-I/P, MAX11601EKA+T offers lower power consumption, smaller SOT23 footprint, integrated I²C interface, and built-in AutoShutdown - making it optimal for space- and energy-constrained embedded systems requiring minimal external components.
Availability
MAX11601EKA+T is available at Aetrix Electronics and suitable for battery-powered test equipment, medical instrumentation, and handheld portable applications requiring stable component supply and long-term industrial temperature support.
Supply support for MAX11601EKA+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, mixed-signal, and power management ICs for demanding industrial, medical, and communications applications.
The MAX11600–MAX11605 family was engineered for ultra-low-power, multichannel data acquisition in portable and remote systems - emphasizing integration, small footprint, and intelligent power management.
FAQ
What is the maximum sampling rate of the MAX11601EKA+T?
The MAX11601EKA+T achieves a maximum sampling rate of 188ksps when using the external clock mode. This rate is supported across its full operating temperature range (-40°C to +85°C) and corresponds to a conversion time of 4.7µs. Internal clock mode yields slightly lower throughput due to fixed oscillator frequency.
Does the MAX11601EKA+T require an external reference voltage?
No, the MAX11601EKA+T includes a factory-trimmed 2.048V internal reference. It can operate fully autonomously with this reference, though it also supports external references from 1V to VDD for custom full-scale ranges. When using the internal reference, AIN3/REF must be decoupled to GND with a 0.01µF capacitor.
What package type is used for the MAX11601EKA+T?
The MAX11601EKA+T is supplied in an 8-pin SOT23 package (lead-free/RoHS-compliant). This compact surface-mount package measures 2.9mm × 1.6mm × 1.1mm and is optimized for high-density PCB layouts in portable electronics.
Can the MAX11601EKA+T perform pseudo-differential conversions?
Yes, the MAX11601EKA+T supports pseudo-differential operation on two channels (e.g., AIN0–AIN3/REF), where the negative input must remain stable within ±0.5 LSB relative to GND during conversion. This mode is enabled via the SGL/DIF bit in the configuration byte and requires proper grounding and decoupling of the reference pin.
How does AutoShutdown™ reduce power in the MAX11601EKA+T?
AutoShutdown™ automatically powers down the MAX11601EKA+T's analog core between conversions, reducing supply current to less than 1µA at low throughput rates. This feature operates transparently - no software command is needed - and resumes full operation on the next I²C access, making it ideal for event-driven sensing.
MAX11601EKA+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- SOT-23-8
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 188k
- Number of Inputs:
- 2, 4
- Input Type:
- Pseudo-Differential, Single Ended
- Data Interface:
- I2C
- 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:
- 2.7V ~ 3.6V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- SOT-23-8
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX11601EKA+T FAQ
1.How can I place an order for MAX11601EKA+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX11601EKA+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 MAX11601EKA+T reliable?
The price and inventory of MAX11601EKA+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX11601EKA+T is usually 5 days.
3.What payment methods are accepted for MAX11601EKA+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX11601EKA+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX11601EKA+T?
MAX11601EKA+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX11601EKA+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 MAX11601EKA+T?
For technical support, including MAX11601EKA+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX11601EKA+T requirements.
6.How does Aetrix verify that MAX11601EKA+T is sourced from the original manufacturer or authorized distributors?
All MAX11601EKA+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 MAX11601EKA+T meets industry standards.
7.What is the process for return or replacement of MAX11601EKA+T?
All MAX11601EKA+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX11601EKA+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 MAX11601EKA+T part is unused and in its original packaging.
Return procedure for MAX11601EKA+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX11601EKA+T Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
