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Analog Devices Inc./Maxim Integrated MAX1102EUA
- Part No.:
- MAX1102EUA
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- CODECS
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
MAX1102EUA.pdf
- Description:
- IC CODEC 8-BIT 2.7-3.6V 8-UMAX
- Quantity:
- Payment:
- Shipping:
Inventory:2,934
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Product details
Overview
MAX1102EUA from Maxim Integrated is an 8-bit dual-function CODEC integrating a successive-approximation ADC and R-2R ladder DAC in a single 8-pin µMAX package. It operates from +2.7V to +3.6V, features ±1 LSB INL for both converters, 48dB SINAD (ADC), 55dB SFDR (DAC), and a 6MHz SPI/QSPI/MICROWIRE-compatible 4-wire interface. It is used in microcontroller-based analog I/O expansion where low power and compact size are critical - e.g., battery-powered sensor nodes requiring on-board voltage monitoring and audio playback.
For engineers reviewing the MAX1102EUA datasheet, MAX1102EUA pinout, MAX1102EUA application, or MAX1102EUA equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply-ready procurement details - all grounded in Maxim's official specifications for the -40°C to +85°C industrial-grade variant with +2V internal reference.
Technical Context
The MAX1102EUA implements a SAR ADC with integrated track-and-hold and a double-buffered R-2R DAC, both sharing a common 8-bit serial control interface. Its ADC supports VDD/2 or AIN input selection via internal mux, enabling power-supply supervision without external components.
It uses an internal +2.0V reference (±100ppm/°C TC) for full-scale scaling of both converters, delivers 25ksps throughput in continuous mode, and achieves 3.5µs acquisition time with ≤10MΩ source impedance - confirmed by electrical characteristics tables and functional diagrams in Rev 1 datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit for both ADC and DAC - defines 256 discrete output levels and quantization step of 7.8125mV at +2V reference. |
| ADC INL / DNL | ±1 LSB max - ensures monotonicity and <0.4% full-scale linearity error across temperature and supply range. |
| DAC SFDR | 55 dB typical - limits spurious content to -55dBc, suitable for voice-band signal reconstruction (e.g., 1kHz sine). |
| Supply Range | +2.7V to +3.6V - enables direct integration with 3.3V microcontrollers without level-shifting or LDO overhead. |
| Interface Speed | 6 MHz SPI/QSPI/MICROWIRE - supports sub-400ns per bit timing, enabling full 16-bit transaction (control + data) in <2.7µs. |
| Shutdown Current | 1 µA - reduces system standby power to near-zero while preserving register state and reference stability. |
| Package | 8-pin µMAX (3mm × 3mm, 0.5mm pitch) - surface-mount footprint compatible with high-density PCB layouts and automated assembly. |
Pinout & Package
The MAX1102EUA is housed in an 8-pin µMAX package with exposed pad (not electrically connected), rated for -40°C to +85°C operation. Pin 1 is marked by a dot; pin numbering follows standard counter-clockwise orientation from top-left when viewing top side.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD (Pin 1) | Positive supply rail | Accepts +2.7V to +3.6V; powers internal reference, logic, and analog blocks; also serves as ratiometric reference source for MAX1104 (not applicable here). |
| GND (Pin 2) | Analog/digital ground | Single ground connection for all internal circuits; requires low-impedance PCB return path to minimize noise coupling into ADC/DAC paths. |
| AIN (Pin 3) | ADC analog input | High-impedance (10MΩ) node accepting 0–2.0V signals; selectable via internal mux to monitor VDD/2 for supply supervision. |
| OUT (Pin 4) | DAC analog output | Rail-to-rail buffered voltage output (0 to VDD–0.1V); settles to ±1/2 LSB in 11µs with 10kΩ//100pF load; slew rate 1.2V/µs. |
| CS (Pin 5) | Chip select input | Active-low enable; places DIN/DOUT/SCLK in high-Z state when high; initiates control word recognition on falling edge. |
| SCLK (Pin 6) | Serial clock input | 6MHz max frequency; rising edge latches DIN; falling edge drives DOUT; timing-critical for avoiding setup/hold violations. |
| DOUT (Pin 7) | ADC digital output | Three-state output; shifts out 8-bit conversion result MSB-first after control word; high-Z when CS = high. |
| DIN (Pin 8) | DAC digital input / control word input | Accepts 8-bit control byte (START=1) followed by 8-bit DAC data; ignored when CS = high or address bits A0/A1 = 0. |
Key Features
| Feature | Design Value |
|---|---|
| Built-in +2.0V reference | Eliminates external reference IC or resistor divider; 100ppm/°C drift ensures stable full-scale over industrial temperature range. |
| Power-supply monitoring capability | Internal AIN/VDD/2 mux allows real-time VDD tracking without added components - critical for brown-out detection in µC systems. |
| 18µA standby mode | Enables rapid wake-up (3µs ADC, 10µs DAC) while keeping reference active - ideal for duty-cycled sensor sampling. |
| Rail-to-rail DAC output buffer | Drives 10kΩ loads with <0.05 LSB load regulation; eliminates need for external op-amp in low-fidelity audio or actuator control loops. |
| Single-supply 3.3V operation | Compatible with modern low-voltage µCs (e.g., ARM Cortex-M0+, PIC16F) without level translators - simplifies BOM and layout. |
Applications
| Industrial Sensor Node | Portable Medical Device |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity sensor with local alarm triggering and LED status feedback. IC Role / Device Role / Timing Role: MAX1102EUA digitizes analog sensor outputs and generates PWM-like DAC waveforms to drive indicator LEDs. Use Value: Single-chip analog I/O reduces component count by 3+ parts (ref, ADC, DAC), cuts PCB area by >40%, and lowers quiescent current to 18µA in standby. |
Use Scenario: Handheld pulse oximeter requiring analog front-end signal conditioning and audible tone generation. IC Role / Device Role / Timing Role: MAX1102EUA ADC samples photodiode signals; DAC produces 400Hz–1kHz alert tones via piezo buzzer. Use Value: 48dB SINAD ensures clean SpO₂ calculation; 55dB SFDR prevents harmonic distortion masking low-amplitude physiological tones. |
| Smart Home Controller | Test & Measurement Module |
|
Use Scenario: Wi-Fi-enabled HVAC controller monitoring thermistor inputs and driving triac gate signals via optocoupler interface. IC Role / Device Role / Timing Role: MAX1102EUA monitors VDD/2 for brown-out detection and converts thermistor voltage for PID loop computation. Use Value: Integrated VDD/2 mux replaces discrete resistor divider and comparator; ±1 LSB INL maintains ±0.5°C accuracy over 0–50°C range. |
Use Scenario: Benchtop calibration tool verifying 8-bit DAC linearity and ADC offset/gain in production test fixtures. IC Role / Device Role / Timing Role: MAX1102EUA acts as known-good reference CODEC to validate DUT performance against traceable specs. Use Value: Factory-trimmed ±1 LSB INL and guaranteed monotonicity provide metrology-grade baseline for pass/fail testing of similar devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-function CODEC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7816U | 8-bit SAR ADC only (no DAC); 5V supply only; no internal reference; requires external REF and clock. | Lacks DAC functionality - unsuitable for bidirectional analog I/O; limited to pure measurement tasks. | Select only if DAC is unnecessary and 5V system design permits external reference sourcing. |
| TLV5610IPW | 10-bit DAC only (no ADC); 2.7–5.5V supply; internal reference; SPI interface; no power-monitoring mux. | Cannot perform analog input acquisition - cannot replace MAX1102EUA in sensor-readback or supply-monitoring roles. | Choose only when higher-resolution DAC output is prioritized and ADC functionality is handled separately. |
Compared with ADS7816U and TLV5610IPW, the MAX1102EUA uniquely integrates matched 8-bit ADC+DAC with internal +2V reference and VDD/2 sensing in one µMAX package - enabling true analog I/O consolidation where space, power, and component count are constrained.
Availability
MAX1102EUA is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical devices, smart home controllers, and test & measurement modules requiring stable component supply with guaranteed long-term availability.
Supply support for MAX1102EUA 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 industrial, automotive, and communications applications.
The MAX1102EUA belongs to Maxim's legacy low-power CODEC family, engineered specifically for microcontroller peripheral expansion where minimal board space, single-supply operation, and integrated reference are mandatory.
FAQ
What is the reference voltage used by the MAX1102EUA?
The MAX1102EUA uses an internal +2.0V voltage reference for both its ADC and DAC sections. This reference is factory-trimmed, has a temperature coefficient of 100ppm/°C, and remains active in standby mode (18µA). It is not user-adjustable and does not require external components - unlike the MAX1104, which uses VDD as reference, or the MAX1103, which uses +4.0V.
Does the MAX1102EUA support power-supply monitoring?
Yes, the MAX1102EUA supports power-supply monitoring via its internal analog input multiplexer. Setting control bit C1 = 1 routes VDD/2 to the ADC's track-and-hold input, allowing direct digitization of half the supply voltage. This enables accurate brown-out detection without external resistors - a feature confirmed in the "Power Sense" section and functional diagram of the MAX1102EUA datasheet.
What is the wake-up time from shutdown for the MAX1102EUA?
The MAX1102EUA wakes up in 3µs from full shutdown (1µA mode) for the ADC and 10µs for the DAC, measured from command assertion to output settling within ±1/2 LSB. These values are specified in the Electrical Characteristics table under "ADC Wake-Up Time from Full Shutdown" and "DAC Wake-Up Time from Full Shutdown", and assume the internal +2V reference remains enabled during standby.
Can the MAX1102EUA operate with a 5V microcontroller interface?
Yes, the MAX1102EUA's digital inputs (DIN, SCLK, CS) accept logic levels compatible with both 3.3V and 5V systems - VIH = 0.7×VDD and VIL = 0.3×VDD, with VDD = +2.7V to +3.6V. This allows direct connection to 5V µCs without level shifters, as confirmed in the "Logic Inputs and Outputs" section of the datasheet.
Is the MAX1102EUA pin-compatible with other members of the MAX1102/MAX1103/MAX1104 family?
Yes, the MAX1102EUA shares identical 8-pin µMAX pinout, interface protocol, and register map with MAX1103EUA and MAX1104EUA. However, supply voltage ranges and reference configurations differ: MAX1102EUA uses +2.7V–+3.6V/+2V, MAX1103EUA uses +4.5V–+5.5V/+4V, and MAX1104EUA uses +2.7V–+5.5V/VDD. Swapping requires verifying supply and reference compatibility.
MAX1102EUA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Type:
- General Purpose
- Data Interface:
- Serial
- Resolution (Bits):
- 8 b
- Number of ADCs / DACs:
- 1 / 1
- Sigma Delta:
- No
- S/N Ratio, ADCs / DACs (db) Typ:
- -
- Dynamic Range, ADCs / DACs (db) Typ:
- 59 / 55
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-uMAX/uSOP
MAX1102EUA FAQ
1.How can I place an order for MAX1102EUA through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX1102EUA 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 MAX1102EUA reliable?
The price and inventory of MAX1102EUA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX1102EUA is usually 5 days.
3.What payment methods are accepted for MAX1102EUA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX1102EUA transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX1102EUA?
MAX1102EUA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX1102EUA 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 MAX1102EUA?
For technical support, including MAX1102EUA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX1102EUA requirements.
6.How does Aetrix verify that MAX1102EUA is sourced from the original manufacturer or authorized distributors?
All MAX1102EUA 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 MAX1102EUA meets industry standards.
7.What is the process for return or replacement of MAX1102EUA?
All MAX1102EUA units undergo pre-shipment inspection (PSI). If there is an issue with MAX1102EUA, 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 MAX1102EUA part is unused and in its original packaging.
Return procedure for MAX1102EUA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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