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Analog Devices Inc./Maxim Integrated MX7576JCWN+
- Part No.:
- MX7576JCWN+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 18-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MX7576JCWN+.pdf
- Description:
- IC ADC 8BIT SAR 18SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,267
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Product details
Overview
MX7576JCWN+ from Maxim Integrated is an 8-bit, microprocessor-compatible analog-to-digital converter (ADC) with 10µs conversion time, single +5V supply operation, 0V to 2VREF input range, and 100ns data-access time-designed for high-speed data acquisition in embedded signal processing systems.
For engineers reviewing the MX7576JCWN+ datasheet, MX7576JCWN+ pinout, MX7576JCWN+ application, or MX7576JCWN+ equivalent, key selection considerations include its asynchronous conversion mode (via MODE pin), external/external-clock flexibility (2MHz max), 8-bit µP interface timing compliance, and wide-SO-18 package compatibility with industrial temperature range (0°C to +70°C).
Technical Context
The MX7576JCWN+ uses successive-approximation architecture with internal DAC and comparator, sampling the analog input eight times per conversion-one before each bit decision-to achieve stable 8-bit quantization without on-chip track/hold. Its MODE pin enables asynchronous continuous conversion when pulled low, decoupling data read timing from BUSY transitions.
It operates with either internal RC oscillator (RCLK = 100kΩ, CCLK = 100pF) or external 2MHz clock, generating 10 internal clock cycles per conversion. Control logic interprets CS/RD edges to initiate conversions and latch results, while three-state D0–D7 outputs interface directly to 8-bit µP data buses without external latching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output codes for unipolar 0V–2.46V full-scale range |
| Conversion Time | 10µs - fixed latency from RD/CS assertion to BUSY high, enabling deterministic µP wait-state design |
| Input Range | 0V to 2VREF - accepts 0–2.46V with 1.23V external reference, supporting unipolar sensor or DAC feedback signals |
| Data Access Time | 100ns - allows direct connection to fast 8-bit µPs (e.g., Z-80, 6502) without glue logic or wait states |
| Total Unadjusted Error | ±1 LSB max - ensures monotonicity and no missing codes across full operating temperature range |
| Supply Voltage | +5V (4.75–5.25V) - compatible with standard TTL/CMOS logic rails and eliminates dual-supply complexity |
| Power Dissipation | 15mW - enables battery-powered or thermally constrained data loggers and portable instrumentation |
Pinout & Package
MX7576JCWN+ is housed in a 18-pin wide SOIC (SO) package with 0.300" body width, gull-wing leads, and JEDEC MS-013AC compliant footprint. Pin 1 is marked by notch or dot; pins are numbered counterclockwise from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | CS | Chip Select input - must be low to enable RD recognition and initiate conversion sequence |
| 2 | RD | Read input - falling edge starts conversion in ROM mode; low level enables data output access |
| 3 | MODE | Mode control - low enables asynchronous continuous conversion; high selects synchronous/ROM interface |
| 4 | BUSY | Open-drain status output - goes low at conversion start, high at completion and data latch update |
| 5 | CLK | External clock input / internal oscillator node - accepts 2MHz square wave or RC network for timing |
| 6–13 | D0–D7 | Three-state digital outputs - D0 (LSB) to D7 (MSB); high-impedance when CS or RD high |
| 14 | AGND | Analog ground - separate return path for AIN/REF to minimize noise coupling into conversion core |
| 15 | AIN | Analog input - 0V to 2VREF range; requires ≤2kΩ source impedance for full 50kHz signal fidelity |
| 16 | REF | Reference voltage input - 1.23V nominal; supplies DAC and comparator; demands low AC/DC impedance |
| 17 | VDD | +5V power supply - powers analog and digital sections; requires local 0.1µF + 47µF decoupling |
| 18 | DGND | Digital ground - isolated return for BUSY/D0–D7; connected to AGND at single point near REF/VDD |
Key Features
| Feature | Design Value |
|---|---|
| Asynchronous conversion mode | Enabled via MODE pin low - allows continuous sampling independent of µP read timing, simplifying FIFO-based streaming |
| 8-bit µP interface compatibility | Standard CS/RD/BUSY handshake - supports slow-memory (READY-driven) and ROM-style (non-wait) interfaces with 6502, Z-80, 8085A |
| No missing codes | Guaranteed over full temperature range - ensures monotonic transfer function critical for closed-loop servo and audio applications |
| Low power consumption | 15mW typical at +5V - reduces thermal load in dense PCB layouts and extends battery life in portable data loggers |
| Wide-SO-18 package | 0.300" body width, 1.27mm pitch - offers higher thermal performance and lower parasitic inductance than narrow SOIC for high-speed ADCs |
Applications
| Digital Signal Processing | High-Speed Data Acquisition |
|---|---|
Use Scenario: Real-time spectral analysis of vibration signals from industrial machinery using FFT-based firmware on an 8-bit µP. IC Role / Device Role / Timing Role: ADC front-end converting conditioned analog sensor outputs at up to 100kSPS with deterministic 10µs latency. Use Value: Enables accurate amplitude/frequency capture of transients up to 50kHz due to 8-sample-per-conversion averaging and low TUE. |
Use Scenario: Multi-channel environmental monitoring system logging temperature, pressure, and humidity at 10kHz aggregate sample rate. IC Role / Device Role / Timing Role: Standalone 8-bit digitizer interfaced to µP via ROM-mode reads, minimizing software overhead per sample. Use Value: 100ns data-access time and three-state outputs allow direct bus sharing without address decoding or latch ICs. |
| Telecommunications | Audio Systems |
Use Scenario: PCM encoding stage in legacy voice codec hardware for PSTN line interface cards. IC Role / Device Role / Timing Role: Unipolar ADC digitizing filtered 0–3V line signals synchronized to 8kHz telephony clock. Use Value: ±1 LSB TUE and 45dB SNR at 10kHz ensure voiceband fidelity meets ITU-T G.711 requirements. |
Use Scenario: Input stage of portable guitar effects processor capturing analog pedal signals before DSP processing. IC Role / Device Role / Timing Role: Low-power ADC sampling at 20kHz with MODE pin held low for continuous buffer filling. Use Value: Asynchronous mode eliminates µP polling delays, enabling jitter-free sample stream feeding circular DMA buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, µP-compatible ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX166 | Includes differential analog input and internal 1.23V reference; 10µs conversion; same SO-18 package | Supports bipolar input configurations and eliminates external reference component; higher pin count required for differential pair | Select MAX166 when differential signaling or reference integration reduces BOM cost and layout area |
| MX7575JCWN+ | 5µs conversion; built-in track/hold; TP pin instead of MODE; identical pinout except TP/MODE swap | Superior for full-power 50kHz sine wave acquisition; requires VDD tie on TP; not suitable for continuous async mode | Choose MX7575JCWN+ for highest-speed single-shot acquisition where track/hold stability outweighs async flexibility |
Compared with MAX166 and MX7575JCWN+, the MX7576JCWN+ uniquely balances continuous asynchronous operation, minimal external components, and industrial-temperature SO-18 packaging-making it optimal for cost-sensitive, µP-limited systems requiring streaming digitization without added logic.
Availability
MX7576JCWN+ is available at Aetrix Electronics and suitable for high-speed data acquisition, telecommunications infrastructure, and audio signal processing requiring stable component supply across industrial temperature ranges and long production lifecycles.
Supply support for MX7576JCWN+ 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, communications, and computing applications.
The MX7576JCWN+ belongs to Maxim's legacy high-speed µP-compatible ADC family, engineered for deterministic, low-latency digitization in resource-constrained 8-bit embedded systems without external timing or latching logic.
FAQ
What is the maximum input signal frequency the MX7576JCWN+ can accurately digitize?
The MX7576JCWN+ achieves full-power bandwidth of 50kHz when used with ≤2kΩ source impedance and proper decoupling. Its 8-sample-per-conversion architecture maintains ±1 LSB accuracy up to this frequency, as verified in Figure 13 of the datasheet with 2.46Vp-p sinusoidal inputs at 200kSPS sampling rate. For signals above 50kHz, amplitude error increases due to settling limitations.
Does the MX7576JCWN+ require an external reference voltage?
Yes, the MX7576JCWN+ requires an external 1.23V reference applied to the REF pin. Unlike the MAX166, it lacks an internal reference. The datasheet recommends using an ICL8069 shunt reference with 0.1µF and 47µF decoupling capacitors to maintain low AC/DC impedance and prevent conversion errors from transient currents during DAC code changes.
How does the MODE pin affect the operation of the MX7576JCWN+?
The MODE pin on the MX7576JCWN+ selects between two interface modes: when MODE is low, the device enters asynchronous conversion mode-performing continuous conversions regardless of RD/CS state, with BUSY indicating completion. When MODE is high, it operates in synchronous mode (ROM or slow-memory), where RD/CS edges trigger individual conversions. This pin is absent on the MX7575JCWN+.
Can the MX7576JCWN+ be used with a 3.3V microprocessor interface?
No, the MX7576JCWN+ is not 3.3V-compatible. It requires +5V supply (4.75–5.25V) and specifies logic thresholds referenced to VDD: VINL = 0.8V, VINH = 2.4V. Driving CS/RD from a 3.3V µP may result in marginal high-level recognition. Level-shifting or 5V-tolerant µPs (e.g., 8051 variants) are required for reliable operation.
What package type and temperature range does the MX7576JCWN+ have?
The MX7576JCWN+ uses a 18-pin wide SOIC (SO) package with 0.300" body width and operates over the industrial temperature range of 0°C to +70°C. The "J" suffix denotes this temperature grade, and "CWN" explicitly identifies the wide-SO variant-distinct from DIP (JN) or PLCC (JP) versions in the same family.
MX7576JCWN+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 18-SOIC (0.295", 7.50mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 100k
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- ADC
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 5V
- Voltage - Supply, Digital:
- 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 18-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MX7576JCWN+ FAQ
1.How can I place an order for MX7576JCWN+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MX7576JCWN+ 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 MX7576JCWN+ reliable?
The price and inventory of MX7576JCWN+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MX7576JCWN+ is usually 5 days.
3.What payment methods are accepted for MX7576JCWN+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MX7576JCWN+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MX7576JCWN+?
MX7576JCWN+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MX7576JCWN+ 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 MX7576JCWN+?
For technical support, including MX7576JCWN+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MX7576JCWN+ requirements.
6.How does Aetrix verify that MX7576JCWN+ is sourced from the original manufacturer or authorized distributors?
All MX7576JCWN+ 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 MX7576JCWN+ meets industry standards.
7.What is the process for return or replacement of MX7576JCWN+?
All MX7576JCWN+ units undergo pre-shipment inspection (PSI). If there is an issue with MX7576JCWN+, 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 MX7576JCWN+ part is unused and in its original packaging.
Return procedure for MX7576JCWN+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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