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Analog Devices Inc./Maxim Integrated MAX153CAP+T
- Part No.:
- MAX153CAP+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-SSOP (0.209", 5.30mm Width)
- Datasheet:
-
MAX153CAP+T.pdf
- Description:
- IC ADC 8BIT FLASH 20SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,799
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Product details
Overview
MAX153CAP+T from Maxim Integrated is a high-speed, µP-compatible 8-bit analog-to-digital converter (ADC) using half-flash architecture to achieve 660ns conversion time and 1Msps throughput. 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 MAX153CAP+T datasheet, MAX153CAP+T pinout, MAX153CAP+T application, or MAX153CAP+T equivalent, key selection considerations include its µP-transparent interface (no external logic required), internal track/hold, ratiometric reference capability, and guaranteed 8-bit accuracy with ±1 LSB total unadjusted error across 0°C to +70°C.
Technical Context
The MAX153CAP+T implements a two-stage half-flash architecture: a 4-bit flash ADC generates the MSBs, then an internal 4-bit DAC produces a residue voltage that feeds a second 4-bit flash stage for the LSBs - achieving full 8-bit resolution without external calibration. Its digital interface supports three modes (RD, WR-RD, pipelined) via MODE pin configuration, with timing fully specified for CS, RD, WR, and INT signals.
It integrates latched, three-state output drivers compatible with standard µP data buses, and accepts ratiometric references where VREF− and VREF+ define zero- and full-scale input voltages respectively. The device is DC- and dynamically tested per production lot, with absolute maximum ratings including ±7V on VDD/VSS and 100% tested DNL guaranteeing no missing codes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - delivers discrete digital representation of analog input with 256 distinct output codes. |
| Conversion Time | 660ns (WR-RD mode) - enables real-time sampling at up to 1.23MHz effective rate in optimized timing configurations. |
| Total Unadjusted Error | ±1 LSB (unipolar range) - ensures monotonicity and predictable code transitions without calibration. |
| Power-Down Current | 1µA typical (VDD = +5V) - reduces system standby power by >99.9% versus operating mode (40mW). |
| Full-Power Bandwidth | 1MHz - supports accurate digitization of input signals up to 1MHz without amplitude loss. |
| Supply Range | +5V single or ±5V dual - simplifies integration into mixed-signal systems with existing rail architectures. |
| Input Leakage | ±3µA - minimizes loading error when interfacing with high-impedance sensor sources. |
Pinout & Package
MAX153CAP+T is packaged in a 20-pin SSOP (Shrink Small Outline Package) with 0.65mm pitch, RoHS-compliant and lead-free (+ suffix). This surface-mount package measures 7.2mm × 5.3mm × 1.95mm, suitable for space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Analog Input | Accepts input voltage between VREF− and VREF+; 22pF input capacitance requires ≤2.2kΩ source impedance for full-speed acquisition. |
| D0–D7 (Pins 2–5, 14–17) | Three-State Data Outputs | Latched parallel outputs (LSB to MSB); directly interface to 8-bit µP data bus without glue logic. |
| WR/RDY (Pin 6) | Mode-Dependent Control/Status | In RD mode: open-collector READY signal; in WR-RD mode: WRITE strobe input - eliminates need for separate control lines. |
| MODE (Pin 7) | Interface Mode Select | Low = RD mode (single read instruction); High = WR-RD mode (separate write/read control) - configures timing behavior and pin function. |
| RD (Pin 8) | Read Strobe Input | Active-low signal enabling data access; in RD mode, initiates conversion and gates output drivers. |
| INT (Pin 9) | Interrupt Output | Open-drain active-low signal indicating conversion completion; resets on rising edge of CS or RD. |
| GND (Pin 10) | Analog Ground Reference | Common return path for analog circuitry; must be separated from digital ground in mixed-signal PCB layout. |
| VREF− (Pin 11) | Reference Lower Limit | Sets zero-code voltage; range VSS < VREF− < VREF+; internal 1–4kΩ resistance affects reference current draw. |
| VREF+ (Pin 12) | Reference Upper Limit | Sets full-scale voltage; used for ratiometric operation where reference tracks supply or sensor excitation. |
| CS (Pin 13) | Chip Select Input | Active-low enable; must be high during power-down to prevent spurious conversions. |
| PWRDN (Pin 18) | Power-Down Control | CMOS/TTL-compatible input; low = 1µA shutdown; wake-up time <200ns enables rapid duty-cycled operation. |
| VSS (Pin 19) | Negative Supply | 0V for unipolar operation; −5V ±5% for bipolar - defines input common-mode range and reference offset. |
| VDD (Pin 20) | Positive Supply | +5V ±5%; bypassed with 4.7µF + 0.1µF capacitors to ensure stable analog performance. |
Key Features
| Feature | Design Value |
|---|---|
| No external clock required | Internal timing generation eliminates clock distribution complexity and jitter sensitivity in µP-coupled systems. |
| Internal track/hold | Integrated sample-and-hold removes need for external THA, reducing BOM count and board area in compact designs. |
| Ratiometric reference inputs | VREF+ and VREF− allow direct connection to sensor bridges or supply rails, canceling ratio-metric errors in transducer interfaces. |
| µP-compatible memory-mapped interface | Appears as a memory location or I/O port - no address decoding or interface logic needed for 8051, Z80, or x86 systems. |
| 1MHz full-power bandwidth | Preserves signal integrity for fast transient capture in servo loops and telecom channel monitoring applications. |
Applications
| Cellular Telephones | Portable Radios |
|---|---|
Use Scenario: Digitizing RF front-end AGC feedback signals and baseband audio paths in GSM/CDMA handsets. IC Role / Device Role / Timing Role: High-speed ADC capturing burst-mode IF samples with minimal latency and power overhead between transmission slots. Use Value: 1µA power-down current extends talk time; 660ns conversion enables real-time closed-loop gain control within tight TDMA frame timing. |
Use Scenario: Sampling audio codec inputs and RSSI detectors in handheld two-way radios operating on alkaline batteries. IC Role / Device Role / Timing Role: Low-power analog front-end digitizer handling voice band (300Hz–3.4kHz) and narrowband signaling tones. Use Value: Single +5V operation simplifies power design; ratiometric reference maintains accuracy across battery discharge voltage swing. |
| Battery-Powered Systems | Burst-Mode Data Acquisition |
Use Scenario: Monitoring sensor arrays (temperature, pressure, acceleration) in wireless sensor nodes with intermittent wake-up cycles. IC Role / Device Role / Timing Role: Standby-ready ADC activated only during scheduled measurement windows to minimize average system current. Use Value: Sub-200ns wake-up time allows sampling immediately after microcontroller exit from deep sleep - no timing guard bands needed. |
Use Scenario: Capturing transient events (voltage spikes, mechanical impacts) in industrial condition-monitoring equipment with event-triggered sampling. IC Role / Device Role / Timing Role: High-throughput digitizer synchronized to external triggers, delivering 1Msps streams only when activity is detected. Use Value: Power-down mode cuts quiescent current to 1µA between bursts, enabling years of operation on coin-cell batteries. |
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, 1MSPS, 1µA shutdown - no parallel µP bus interface or internal track/hold. | Requires serial interface controller and external sample/hold; better suited for low-pin-count microcontrollers. | Select when board space is constrained and SPI is preferred over parallel bus; not drop-in for MAX153CAP+T µP connections. |
| MAX1113ECM+ | 8-bit, 1.5Msps, internal reference, 2.7V–5.25V supply, 1µA shutdown - uses successive approximation (SAR), not half-flash. | Higher effective resolution at lower frequencies; lacks bipolar input support and ratiometric reference flexibility. | Choose for improved SNR at <500ksps or when internal reference simplifies design; incompatible pinout and timing model. |
Compared with ADS7822U and MAX1113ECM+, the MAX153CAP+T uniquely combines parallel µP compatibility, true bipolar input range, and ratiometric reference architecture - making it optimal for legacy 8-bit embedded systems requiring minimal interface redesign and precise transducer signal conditioning.
Availability
MAX153CAP+T is available at Aetrix Electronics and suitable for cellular telephones, portable radios, and battery-powered systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MAX153CAP+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 U.S.-based semiconductor company specializing in precision analog, mixed-signal, and high-frequency ICs for industrial, communications, and consumer applications.
The MAX153CAP+T belongs to Maxim's high-speed data converter product line, designed specifically for µP-coupled, low-power, burst-mode acquisition in portable and battery-sensitive systems - emphasizing interface simplicity, timing predictability, and supply robustness.
FAQ
What is the operating temperature range for the MAX153CAP+T?
The MAX153CAP+T is rated for 0°C to +70°C ambient operation, as indicated by the 'C' grade in its ordering code. This commercial-grade specification ensures reliable performance in handheld electronics, test equipment, and non-automotive embedded systems where extended temperature ranges are not required. The device's electrical characteristics - including ±1 LSB total unadjusted error and 660ns conversion time - are guaranteed across this full range.
Does the MAX153CAP+T require an external clock signal?
No, the MAX153CAP+T does not require an external clock. Its internal timing and control circuitry generate all necessary sequencing signals, enabling autonomous conversion initiation via WR or RD strobes. This eliminates clock distribution challenges and jitter sensitivity, making the MAX153CAP+T especially suitable for µP-based systems where clock resources are limited or shared across multiple peripherals.
How does the PWRDN pin function in the MAX153CAP+T?
The PWRDN pin on the MAX153CAP+T is an active-low control input that reduces VDD supply current to 1µA typical when driven low. During power-down, CS must remain high to prevent spurious conversions, and the device wakes up in less than 200ns. The MAX153CAP+T returns to full operation within 360ns of PWRDN going high - allowing rapid duty-cycled sampling in burst-mode applications without timing overhead.
Can the MAX153CAP+T interface directly with an 8051 microcontroller?
Yes, the MAX153CAP+T interfaces directly with an 8051 microcontroller. Its latched, three-state D0–D7 outputs connect to the µP's data bus, while WR/RDY, RD, CS, and INT are compatible with 8051 control signals. No external address decoding or interface logic is needed - the MAX153CAP+T appears as a memory-mapped or I/O-mapped peripheral, supporting both polling (via RDY) and interrupt-driven (via INT) data acquisition.
What package type is used for the MAX153CAP+T?
The MAX153CAP+T uses a 20-pin SSOP (Shrink Small Outline Package) with RoHS-compliant, lead-free construction (indicated by the '+' suffix). This surface-mount package has a 0.65mm pin pitch and footprint dimensions of 7.2mm × 5.3mm, making it suitable for compact PCB layouts in portable electronics. The SSOP variant is explicitly listed in Maxim's ordering information for the 'CAP+' part number.
MAX153CAP+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Package/Case:
- 20-SSOP (0.209", 5.30mm 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-SSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
MAX153CAP+T FAQ
1.How can I place an order for MAX153CAP+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX153CAP+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 MAX153CAP+T reliable?
The price and inventory of MAX153CAP+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX153CAP+T is usually 5 days.
3.What payment methods are accepted for MAX153CAP+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX153CAP+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX153CAP+T?
MAX153CAP+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX153CAP+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 MAX153CAP+T?
For technical support, including MAX153CAP+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX153CAP+T requirements.
6.How does Aetrix verify that MAX153CAP+T is sourced from the original manufacturer or authorized distributors?
All MAX153CAP+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 MAX153CAP+T meets industry standards.
7.What is the process for return or replacement of MAX153CAP+T?
All MAX153CAP+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX153CAP+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 MAX153CAP+T part is unused and in its original packaging.
Return procedure for MAX153CAP+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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