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Analog Devices Inc./Maxim Integrated MAX153CPP+
- Part No.:
- MAX153CPP+
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX153CPP+.pdf
- Description:
- IC ADC 8BIT FLASH 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,251
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Product details
Overview
MAX153CPP+ 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 cellular telephones and portable radios.
For engineers reviewing the MAX153CPP+ datasheet, MAX153CPP+ pinout, MAX153CPP+ application, or MAX153CPP+ equivalent, key selection considerations include its µP-transparent interface (no external logic required), ratiometric reference capability, internal track/hold, 1MHz full-power bandwidth, and compatibility with RD and WR-RD digital control modes across 0°C to +70°C operation.
Technical Context
The MAX153CPP+ implements a two-stage half-flash conversion architecture: a 4-bit flash ADC generates the upper 4 bits, then an internal 4-bit DAC produces a residue voltage that feeds a second 4-bit flash stage for the lower 4 bits-achieving 8-bit resolution with 15 comparators. Its timing-critical interface supports three operational modes (RD, WR-RD, pipelined), each with distinct setup/hold, access, and interrupt timing constraints defined down to nanosecond-level precision.
Power management is tightly coupled to digital control: PWRDN must be high during active conversion and low only when CS is high; MODE pin selects between RD mode (MODE = GND) and WR-RD mode (MODE = VDD); and RDY is an open-drain status output in RD mode requiring external pull-up. Reference inputs (VREF+, VREF−) define zero- and full-scale codes and exhibit 1–4kΩ input resistance, necessitating careful bypassing and optional MOSFET switching during power-down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - provides 256 discrete output codes for digitizing analog signals within defined input range. |
| Conversion Time | 660ns (WR-RD mode) - enables 1Msps throughput with minimal latency for real-time signal capture. |
| Power-Down Current | 1µA typical (VDD = +5V) - reduces system quiescent power in idle intervals without sacrificing wake-up speed. |
| 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: VREF− to VREF+ - configurable for ground-referenced or centered-swing sensor interfaces. |
| Supply Voltage | +5V single supply or ±5V dual supply - simplifies power design in mixed-signal embedded systems. |
| Total Unadjusted Error | ±1 LSB - ensures monotonicity and guarantees no missing codes across full operating temperature range. |
Pinout & Package
MAX153CPP+ is housed in a 20-pin narrow plastic DIP (PDIP) package with 0.3-inch body width and through-hole mounting. Pin spacing is 0.1 inch, compatible with standard PCB layouts and socketing for prototyping and production.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 VIN | Analog Input | Accepts differential or single-ended input voltage referenced to VREF− and VREF+; 22pF input capacitance requires low-impedance source or extended acquisition time. |
| 2–5, 14–17 D0–D7 | Digital Output (LSB to MSB) | Latched, three-state buffered outputs directly connectable to µP data bus; high-impedance state enabled by CS high. |
| 6 WR/RDY | Mode-Dependent Control/Status | In RD mode: open-drain READY output (requires external pull-up); in WR-RD mode: WRITE control input. |
| 7 MODE | Interface Mode Select | Low = RD mode (conversion triggered by RD); high = WR-RD mode (conversion triggered by WR). |
| 8 RD | Read Strobe | Active-low signal enabling data read access; in RD mode, initiates conversion and latches result. |
| 9 INT | Interrupt Output | Open-drain output goes low at end of conversion; reset by rising edge of CS or RD. |
| 10 GND | Ground Reference | Common return path for analog and digital sections; requires low-inductance connection to minimize noise coupling. |
| 11 VREF− | Reference Lower Limit | Sets zero-code voltage; input resistance 1–4kΩ; must be bypassed with 0.1µF capacitor. |
| 12 VREF+ | Reference Upper Limit | Sets full-scale voltage; input resistance 1–4kΩ; bypassing critical for noise immunity. |
| 13 CS | Chip Select | Active-low enable; must be high during power-down to prevent spurious conversions. |
| 18 PWRDN | Power-Down Control | Active-low input reducing VDD/VSS current to ~1µA; wake-up time <200ns; CS must remain high. |
| 19 VSS | Negative Supply | 0V for unipolar operation; −5V ±5% for bipolar operation; decoupling required with 4.7µF + 0.1µF. |
| 20 VDD | Positive Supply | +5V ±5%; bypassed with 4.7µF electrolytic + 0.1µF ceramic in parallel to suppress supply noise. |
Key Features
| Feature | Design Value |
|---|---|
| Half-flash conversion architecture | Enables 660ns conversion with only 15 comparators-reducing die area and power vs. full-flash while maintaining 8-bit accuracy. |
| µP-transparent interface | Appears as memory-mapped I/O or port address; no external glue logic needed for 8051, Z80, or x86 bus interfacing. |
| Ratiometric reference support | VIN, VREF+, and VREF− scale together-eliminates gain error drift when reference and signal share same supply or divider. |
| Internal track/hold | Integrated sampling circuit eliminates need for external THS; acquisition time fixed at 160ns minimum. |
| No external clock required | Timing derived entirely from WR, RD, and CS edges-simplifies system clock tree and reduces component count. |
Applications
| Cellular Telephone Baseband | Portable Radio IF Sampling |
|---|---|
|
Use Scenario: Digitizing baseband I/Q signals in GSM or CDMA transceivers during TDMA burst transmission. IC Role / Device Role / Timing Role: High-speed ADC capturing RF demodulated waveforms at 1Msps with sub-µs latency to support tight frame timing. Use Value: 660ns conversion time and 1µA power-down enable rapid on/off cycling synchronized to transmit/receive slots-extending battery life without compromising signal fidelity. |
Use Scenario: Sampling intermediate frequency (IF) outputs from mixer stages in handheld two-way radios. IC Role / Device Role / Timing Role: 8-bit digitizer interfacing directly to µP-controlled demodulation firmware, accepting ±2.5V bipolar inputs. Use Value: Ratiometric reference operation maintains amplitude accuracy despite battery voltage sag; internal track/hold eliminates external sample-hold complexity. |
| Battery-Powered Data Logger | High-Speed Servo Loop Feedback |
|
Use Scenario: Capturing sensor outputs (temperature, pressure, acceleration) in field-deployed environmental monitors. IC Role / Device Role / Timing Role: Low-power ADC entering 1µA shutdown between periodic 100ms sampling intervals-minimizing average current draw. Use Value: Power-down wake-up time <200ns allows immediate conversion start upon µP command-preserving timing margin in deterministic logging schedules. |
Use Scenario: Closed-loop position/velocity feedback in industrial motor controllers requiring real-time correction. IC Role / Device Role / Timing Role: ADC feeding FPGA or DSP with 1Msps updates to compute PID corrections within 1µs control cycle windows. Use Value: 1MHz full-power bandwidth ensures faithful reproduction of fast-changing encoder or resolver signals-preventing phase lag in loop response. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, 1Msps ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX152CPP+ | Same pinout and interface, but lacks POWERDN pin and draws 15mA operating current-no µA shutdown capability. | Suitable for continuously powered systems where power cycling is unnecessary; not viable for burst-mode battery operation. | Select MAX152CPP+ only if power-down functionality is irrelevant and cost is prioritized over energy efficiency. |
| ADS7822U | 8-bit, 250ksps SAR ADC with SPI interface; 1.2mW operating power; no native µP bus interface or power-down pin. | Requires serial interface logic and external clock; lower speed limits use in servo loops or high-rate burst acquisition. | Choose ADS7822U when board space is constrained and SPI is already used elsewhere-accepting ¼ the throughput and no direct µP bus connection. |
Compared with MAX152CPP+, the MAX153CPP+ adds critical power-down control for battery longevity; compared with ADS7822U, it delivers 4× higher throughput and native parallel µP interface-making it optimal for µP-based, power-sensitive, high-speed acquisition where layout simplicity and timing determinism matter.
Availability
MAX153CPP+ is available at Aetrix Electronics and suitable for cellular telephones, portable radios, and battery-powered systems requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX153CPP+ 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 is a semiconductor company specializing in analog and mixed-signal ICs for power, sensing, connectivity, and security applications.
The MAX153CPP+ belongs to Maxim's high-speed data acquisition product line, designed specifically for µP-centric embedded systems needing low-latency, low-power, and interface-simplified ADC solutions in portable and telecom equipment.
FAQ
What is the maximum sampling rate achievable with the MAX153CPP+?
The MAX153CPP+ achieves a maximum sampling rate of 1.23MHz in WR-RD mode with tRD < tINTL timing configuration. This is calculated from tWR (250ns) + tRD (250ns) + tRI (150ns) + tP (165ns). At 1Msps, the device meets its specified 660ns conversion time and maintains ±1 LSB total unadjusted error across 0°C to +70°C.
How does the MAX153CPP+ handle power-down mode, and what are the critical timing requirements?
The MAX153CPP+ enters power-down mode when PWRDN is driven low, reducing VDD current to 1µA typical-but only if CS remains high. Wake-up occurs within 200ns of PWRDN going high, and a new conversion can begin 360ns later (200ns power-up + 160ns acquisition). Driving PWRDN low while CS is low may cause undefined behavior or spurious conversions.
Can the MAX153CPP+ operate with a single +5V supply in bipolar input mode?
No-the MAX153CPP+ requires dual ±5V supplies for true bipolar operation (±2.5V input range), as VSS must be −5V ±5% to support the internal reference and comparator headroom. With only +5V applied to VDD and GND on VSS, only unipolar 0V to +5V input ranges are supported per the Electrical Characteristics table.
What is the purpose of the MODE pin on the MAX153CPP+, and how does it affect interface timing?
The MODE pin selects between RD mode (MODE = GND) and WR-RD mode (MODE = VDD). In RD mode, RD initiates conversion and WR/RDY functions as a READY output; in WR-RD mode, WR starts conversion and WR/RDY becomes a WRITE input. Timing parameters-including tCRD, tCWR, tACC0, and tACC1-differ significantly between modes and are fully specified in the Timing Characteristics table.
Does the MAX153CPP+ require external components for stable operation, and which ones are mandatory?
Yes-the MAX153CPP+ requires mandatory bypassing: a 4.7µF electrolytic capacitor in parallel with a 0.1µF ceramic capacitor between VDD and GND, plus 0.1µF capacitors on both VREF+ and VREF− pins. An external pull-up resistor (~5.1kΩ) on WR/RDY is also required in RD mode for proper READY signaling. These are specified in the Analog Considerations section and critical for noise immunity and timing compliance.
MAX153CPP+ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Packaging:
- Tube
- 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-PDIP
- Mounting Type:
- Through Hole
- Grade:
- -
- Qualification:
- -
MAX153CPP+ FAQ
1.How can I place an order for MAX153CPP+ through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX153CPP+ 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 MAX153CPP+ reliable?
The price and inventory of MAX153CPP+ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX153CPP+ is usually 5 days.
3.What payment methods are accepted for MAX153CPP+?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX153CPP+ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX153CPP+?
MAX153CPP+ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX153CPP+ 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 MAX153CPP+?
For technical support, including MAX153CPP+ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX153CPP+ requirements.
6.How does Aetrix verify that MAX153CPP+ is sourced from the original manufacturer or authorized distributors?
All MAX153CPP+ 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 MAX153CPP+ meets industry standards.
7.What is the process for return or replacement of MAX153CPP+?
All MAX153CPP+ units undergo pre-shipment inspection (PSI). If there is an issue with MAX153CPP+, 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 MAX153CPP+ part is unused and in its original packaging.
Return procedure for MAX153CPP+:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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