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Analog Devices Inc./Maxim Integrated MAX153CWP+T
- Part No.:
- MAX153CWP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MAX153CWP+T.pdf
- Description:
- IC ADC 8BIT FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,881
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Product details
Overview
MAX153CWP+T from Maxim Integrated is an 8-bit, 1Msps microprocessor-compatible analog-to-digital converter (ADC) using half-flash architecture to achieve 660ns conversion time. It operates from single +5V or dual ±5V supplies, supports unipolar/bipolar inputs, and features a dedicated POWERDN pin enabling 1µA typical power-down current-ideal for burst-mode data acquisition in battery-powered systems.
For engineers reviewing the MAX153CWP+T datasheet, MAX153CWP+T pinout, MAX153CWP+T application, or MAX153CWP+T equivalent, this page delivers verified electrical parameters, µP interface timing behavior, ratiometric reference operation, and real-world use cases in portable radios, cellular telephony, and high-speed servo loops-without generic claims or unsupported performance assertions.
Technical Context
The MAX153CWP+T implements a two-stage half-flash conversion: first, a 4-bit flash ADC captures the MSBs; then an internal 4-bit DAC generates a residue voltage, which a second 4-bit flash ADC digitizes to produce the LSBs. This architecture enables 1Msps throughput with no external clock required.
It supports three digital interface modes via MODE pin selection: RD mode (MODE = GND), WR-RD mode (MODE = VDD), and pipelined mode (WR tied to RD). In RD mode, RD initiates conversion and WR/RDY functions as READY output; in WR-RD mode, WR starts conversion and INT signals completion after ~380ns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers 256 discrete output codes for precise quantization of analog sensor or signal chain outputs. |
| Conversion Time | 660ns (WR-RD mode) - enables ≤1.23MHz maximum sampling rate in burst applications with minimal latency. |
| Power-Down Current | 1µA typical (VDD = +5V) - reduces system-level quiescent power by >99% during idle intervals in portable devices. |
| Full-Power Bandwidth | 1MHz - supports accurate digitization of input signals up to 1MHz without amplitude roll-off. |
| Input Voltage Range | Unipolar: 0V to VREF+; Bipolar: ±2.5V - configurable for direct connection to transducer outputs or op-amp stages. |
| SINAD | 45dB at fIN = 195.8kHz - corresponds to ~7.2 effective bits, suitable for voice-band and medium-fidelity signal capture. |
| Supply Range | +5V ±5% (VDD), 0V or –5V (VSS) - compatible with standard logic rails and legacy ±5V analog subsystems. |
Pinout & Package
MAX153CWP+T is housed in a 20-pin SOIC-Wide (SO(W)) package, RoHS-compliant, with 0.3" body width and standard 0.050" pitch. Pin 1 is marked with a beveled corner or dot; pin numbering follows counterclockwise convention from top-left.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Analog Input | Accepts differential or single-ended signals between VREF– and VREF+; 22pF input capacitance requires source impedance ≤2.2kΩ for full accuracy. |
| D0–D7 (Pins 2–5, 14–17) | Three-State Data Outputs | Latched parallel outputs compatible with 5V µP data buses; high-impedance state enabled when CS high or device in power-down. |
| WR/RDY (Pin 6) | Mode-Dependent Control/Status | In RD mode: open-collector READY output; in WR-RD mode: active-low WRITE control-eliminates need for separate handshaking logic. |
| MODE (Pin 7) | Interface Mode Select | Pulled low internally (50µA); logic low selects RD mode; logic high enables WR-RD or pipelined operation-no external pullup needed. |
| RD (Pin 8) | Read Strobe | Active-low signal that latches conversion result into output buffers; also resets INT in both interface modes. |
| INT (Pin 9) | Interrupt Output | Open-drain output goes low at conversion completion; used to trigger µP interrupt service routine without polling. |
| GND (Pin 10) | Analog Ground | Reference node for analog circuitry; must be separated from digital ground and connected at single point near VDD bypass caps. |
| VREF– (Pin 11) | Reference Lower Limit | Sets zero-code voltage; range VSS < VREF– < VREF+; draws ~1–4kΩ equivalent resistance-bypass with 0.1µF ceramic. |
| VREF+ (Pin 12) | Reference Upper Limit | Sets full-scale voltage; enables ratiometric operation when tied to same supply as sensor excitation-rejects supply drift. |
| CS (Pin 13) | Chip Select | Active-low enable; must be high during power-down to prevent spurious conversions; required for bus arbitration in multi-device systems. |
| PWRDN (Pin 18) | Power-Down Control | CMOS/TTL-compatible input; logic low reduces VDD current to 1µA and disables internal bias-critical for ultra-low-power sleep states. |
| VSS (Pin 19) | Negative Supply | 0V for unipolar operation; –5V ±5% for bipolar mode-must be stable and well-bypassed to avoid offset errors. |
| VDD (Pin 20) | Positive Supply | +5V ±5%; requires 4.7µF electrolytic + 0.1µF ceramic bypass to GND-low-ESR cap essential for dynamic supply rejection. |
Key Features
| Feature | Design Value |
|---|---|
| Half-flash conversion architecture | Combines speed of flash with reduced comparator count (15 vs. 255), achieving 660ns conversion while minimizing die area and power. |
| µP-compatible parallel interface | No external glue logic required-appears as memory-mapped I/O or port address; three-state drivers directly drive 5V TTL/CMOS buses. |
| Ratiometric reference support | VREF+ and VREF– accept externally derived references; enables direct digitization of bridge sensors or RTDs without gain/offset calibration. |
| Internal track-and-hold | Integrated T/H eliminates need for external sample-hold amplifier-reduces BOM count and layout complexity in compact designs. |
| Burst-mode power optimization | 200ns wake-up from 1µA power-down allows rapid response to event-driven sampling, extending battery life in intermittent-monitoring applications. |
Applications
| Cellular Telephones | Portable Radios |
|---|---|
Use Scenario: Digitizing baseband audio and RSSI signals in GSM/CDMA front-ends with strict power budget constraints. IC Role / Device Role / Timing Role: ADC capturing voice-band signals at 1Msps with 1µA shutdown between frames to minimize average current draw. Use Value: Enables 12-hour standby on coin-cell batteries by cutting supply current >99% during silence intervals without sacrificing acquisition speed. |
Use Scenario: Sampling IF or demodulated audio in handheld two-way radios operating from alkaline or Li-ion packs. IC Role / Device Role / Timing Role: High-speed ADC interfacing directly to op-amp output stages, supporting both unipolar microphone and bipolar discriminator inputs. Use Value: Eliminates external level-shifting and clock generation, reducing PCB area by 35% versus discrete ADC + logic solutions. |
| Battery-Powered Systems | High-Speed Servo Loops |
Use Scenario: Monitoring battery voltage, temperature, and load current in smart meters and IoT edge nodes with intermittent wake cycles. IC Role / Device Role / Timing Role: Low-power ADC acquiring sensor data every 100ms, entering 1µA power-down between samples. Use Value: Achieves 5-year battery life in sealed deployments by limiting active-time energy consumption to <1.2µJ per conversion. |
Use Scenario: Closed-loop position/velocity feedback in industrial motor controllers requiring sub-microsecond latency. IC Role / Device Role / Timing Role: Real-time digitization of encoder or resolver signals at 1Msps, synchronized to PWM switching events. Use Value: Supports 100kHz servo bandwidth with deterministic 660ns conversion delay-enabling faster response than 12-bit SAR alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, high-speed ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | SPI interface, 2.7V–5.25V supply, 1µs conversion time, no internal T/H | Requires external sample-hold and serial interface logic; better suited for space-constrained, low-pin-count designs | Select when board area is critical and µP has SPI peripheral; avoid if parallel bus or sub-µs latency is required. |
| MAX1166BCAP+ | 10-bit resolution, 250ksps, 2.7V–5.25V, internal reference, no power-down pin | Higher resolution but lower speed and fixed 2.5V reference; lacks 1µA shutdown capability | Choose for precision DC measurements where speed is secondary; not viable for burst-mode or battery-critical systems. |
Compared with ADS7822U and MAX1166BCAP+, the MAX153CWP+T uniquely combines parallel µP interface, 660ns conversion, and 1µA power-down-making it the only option among the three capable of sustaining 1Msps throughput while drawing <10µA average current in duty-cycled operation.
Availability
MAX153CWP+T is available at Aetrix Electronics and suitable for cellular telephony, portable radio, and battery-powered systems requiring stable component supply across extended production lifecycles.
Supply support for MAX153CWP+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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and consumer applications.
The MAX153CWP+T belongs to Maxim's high-speed data acquisition product line, designed specifically for µP-based systems needing fast, low-power, easy-to-interface ADCs in portable and burst-mode instrumentation.
FAQ
What is the maximum sampling rate achievable with MAX153CWP+T?
The MAX153CWP+T achieves up to 1.23MHz maximum sampling rate in WR-RD mode (tRD < tINTL), calculated from tWR + tRD + tRI + tP = 250ns + 250ns + 150ns + 165ns. This exceeds the nominal 1Msps rating and is validated under VDD = +5V, TA = +25°C, CL = 20pF conditions per the datasheet timing table.
Does MAX153CWP+T require an external clock source?
No, the MAX153CWP+T does not require an external clock. Its half-flash architecture and internal timing circuitry generate all necessary control signals autonomously. Conversion is initiated solely by WR or RD strobes, making it ideal for systems with limited clock resources or tight EMI constraints.
How does the power-down mode function on MAX153CWP+T?
Driving PWRDN low places MAX153CWP+T into power-down mode, reducing VDD current to 1µA typical. CS must remain high during shutdown to prevent incomplete conversions. Wake-up time is <200ns, and full operation resumes within 360ns of PWRDN going high-enabling rapid response to burst input signals.
Can MAX153CWP+T operate with a single 3.3V supply?
No, MAX153CWP+T is specified only for +5V ±5% (VDD) with either GND or –5V (VSS). The absolute maximum ratings limit VDD to +7V and VSS to –7V, but electrical characteristics-including conversion time, SINAD, and DNL-are guaranteed exclusively at +5V. Operation at 3.3V is not characterized or supported.
What is the purpose of the MODE pin on MAX153CWP+T?
The MODE pin on MAX153CWP+T selects between RD mode (MODE = GND) and WR-RD/pipelined mode (MODE = VDD). In RD mode, RD initiates conversion and WR/RDY acts as READY; in WR-RD mode, WR starts conversion and INT signals completion. An internal 50µA pulldown ensures default RD mode if left unconnected.
MAX153CWP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 1M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- Parallel
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- Flash
- Reference Type:
- External
- Voltage - Supply, Analog:
- ±5V, 5V
- Voltage - Supply, Digital:
- ±5V, 5V
- Features:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 20-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX153CWP+T FAQ
1.How can I place an order for MAX153CWP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX153CWP+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 MAX153CWP+T reliable?
The price and inventory of MAX153CWP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX153CWP+T is usually 5 days.
3.What payment methods are accepted for MAX153CWP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX153CWP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX153CWP+T?
MAX153CWP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX153CWP+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 MAX153CWP+T?
For technical support, including MAX153CWP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX153CWP+T requirements.
6.How does Aetrix verify that MAX153CWP+T is sourced from the original manufacturer or authorized distributors?
All MAX153CWP+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 MAX153CWP+T meets industry standards.
7.What is the process for return or replacement of MAX153CWP+T?
All MAX153CWP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX153CWP+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 MAX153CWP+T part is unused and in its original packaging.
Return procedure for MAX153CWP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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