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Texas Instruments TLV2553IDWRDL
- Part No.:
- TLV2553IDWRDL
- Manufacturer:
- Texas Instruments
- Category:
- Unclassified
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- Datasheet:
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TLV2553IDWRDL.pdf
- Description:
- PROTOTYPE
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Product details
Overview
TLV2553IDWRDL from Texas Instruments is a 12-bit, 200-KSPS successive-approximation analog-to-digital converter (SAR ADC) with an integrated 11-channel analog multiplexer, on-chip sample-and-hold, and SPI-compatible serial interface. It operates from 2.7 V to 5.5 V, delivers ±1 LSB linearity error, and supports unipolar/bipolar output modes in industrial temperature range (–40°C to 85°C). It is used in portable data loggers for multi-sensor voltage digitization with low-power sequencing.
For engineers reviewing the TLV2553IDWRDL datasheet, TLV2553IDWRDL pinout, TLV2553IDWRDL application, or TLV2553IDWRDL equivalent, key selection criteria include its 11-channel MUX capability, programmable MSB/LSB-first output, self-test modes, and compatibility with microcontroller SPI peripherals operating up to 15 MHz (CPOL=0, CPHA=0) at 5 V supply.
Technical Context
The TLV2553IDWRDL implements a switched-capacitor SAR architecture with differential high-impedance reference inputs (REF+, REF–), enabling ratiometric conversion and noise isolation. Its internal oscillator (2.56–4.15 MHz) drives conversion timing without external clock dependency.
Control is managed via three serial interface signals - CS, I/O CLOCK, and DATA IN - supporting 8-/12-/16-bit transfer formats. The EOC pin provides end-of-conversion status, and the device integrates three built-in self-test modes (zero-scale, full-scale, and mid-scale) accessible via address bits 1011, 1100, and 1101 respectively.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR - delivers 4096 discrete digital codes with monotonic transfer function and ±1 LSB INL/DNL. |
| Throughput Rate | 200 KSPS at 5 V / 150 KSPS at 3 V - defines maximum sampling frequency for continuous channel scanning. |
| Analog Inputs | 11 single-ended channels (AIN0–AIN10) - enables direct connection of 11 sensors or signal sources without external MUX. |
| Reference Interface | Differential REF+/REF– inputs - supports ratiometric measurement and allows external precision reference (e.g., 4.096 V) for improved accuracy. |
| Power Consumption | 1.2 mA typical at 5 V; 0.1–1 μA in software/auto power-down - enables battery operation with configurable sleep states. |
| Serial Interface | SPI-compatible (CPOL=0, CPHA=0), up to 15 MHz clock - ensures interoperability with standard MCU SPI controllers without protocol translation. |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments including process control enclosures and field instrumentation. |
Pinout & Package
TLV2553IDWRDL is packaged in a 20-pin SOIC (DW package), 12.80 mm × 7.50 mm body size, with gull-wing leads and standard JEDEC MS-013 footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AIN0–AIN10 | Analog input | 11 single-ended analog signal inputs; internally multiplexed to ADC core; high-impedance (>600 kΩ) with ≤55 pF capacitance. |
| CS | Chip select | Active-low enable controlling DATA OUT, DATA IN, and I/O CLOCK; resets internal counters on falling edge. |
| DATA IN | Serial command input | 4-bit address/command (MSB first) followed by 4-bit configuration; selects channel or activates self-test mode. |
| DATA OUT | Serial data output | 3-state output shifting out 12-bit conversion result (MSB or LSB first); driven only when CS is low. |
| I/O CLOCK | Serial interface clock | Rising edges shift in command bits; falling edges trigger sampling, conversion, and data output bit transitions. |
| EOC | End-of-conversion indicator | Active-low open-drain output signaling completion of conversion and readiness of data on DATA OUT. |
| REF+, REF– | Differential reference inputs | Set full-scale range (REF+ – REF–); support external references or internal VCC/GND tie; require 0.1 µF bypass capacitor. |
| VCC, GND | Power supply | Single 2.7–5.5 V supply; GND serves as analog/digital common reference; decoupling recommended near pins. |
Key Features
| Feature | Design Value |
|---|---|
| Inherent sample-and-hold | Automatic acquisition during I/O CLOCK falling edge sequence - eliminates need for external S/H circuitry and reduces board space. |
| Programmable output format | Configurable MSB-first or LSB-first, 8-/12-/16-bit word length - simplifies firmware alignment with host processor data registers. |
| Built-in self-test modes | Three factory-calibrated test voltages (0x000, 0x800, 0xFFF) accessible via address bits - enables runtime ADC health verification without external stimuli. |
| Low-power operation | Software or auto power-down modes drawing ≤1 μA - extends battery life in portable instruments between conversions. |
| Flexible reference architecture | Differential REF+/REF– with >1 MΩ static impedance and 6–9 kΩ dynamic impedance during sampling - supports precision ratiometric or absolute measurements. |
Applications
| Process Control Monitoring | Portable Environmental Logger |
|---|---|
|
Use Scenario: Continuous monitoring of temperature, pressure, and flow sensor outputs in PLC I/O modules. IC Role / Device Role / Timing Role: 11-channel SAR ADC with integrated MUX scans multiple 4–20 mA transducer signals sequentially; EOC synchronizes MCU readout. Use Value: Reduces component count vs. discrete ADC + external MUX; ±1 LSB linearity ensures accurate calibration traceability across sensor channels. |
Use Scenario: Battery-powered field unit logging soil moisture, ambient light, and humidity over 72-hour deployments. IC Role / Device Role / Timing Role: Low-power ADC acquires sensor data at 100 Hz, enters auto power-down between samples, and wakes on timer interrupt. Use Value: 0.9 mA typical current at 2.7 V extends alkaline battery life beyond 6 months; self-test validates ADC integrity before each logging session. |
| Industrial HMI Front Panel | Medical Diagnostic Sensor Interface |
|
Use Scenario: Operator interface panel digitizing potentiometer wiper positions, pushbutton analog feedback, and status LED current sense. IC Role / Device Role / Timing Role: TLV2553IDWRDL acts as system ADC hub, converting 11 front-panel analog controls into digital values for ARM Cortex-M4 host. Use Value: SPI interface with 15 MHz clock tolerance enables deterministic <10 µs conversion + readout latency; unipolar/bipolar mode supports both 0–3.3 V and ±1.65 V inputs. |
Use Scenario: Point-of-care device measuring electrode potentials from ECG, EMG, or pH sensors with isolated analog front-end. IC Role / Device Role / Timing Role: ADC receives conditioned, isolated analog signals; differential REF+ / REF– rejects common-mode noise from isolation barriers. Use Value: High-impedance reference inputs and ratiometric capability maintain accuracy despite supply ripple; 200 KSPS supports 50 Hz notch filter oversampling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 12-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit resolution, 200 KSPS, 4-channel MUX, no internal oscillator - requires external clock; 3 V only. | Limited to lower-accuracy sensor monitoring where 256-level quantization suffices. | Select when cost sensitivity outweighs resolution needs and system already provides 2.5 MHz clock. |
| TLV2548IDW | Same 12-bit resolution and 200 KSPS, but 8-channel MUX and no self-test modes; identical SOIC-20 package. | Suitable for simpler systems requiring fewer analog inputs and no runtime diagnostic capability. | Choose for drop-in replacement where AIN9–AIN10 channels are unused and self-test is unnecessary. |
Compared with ADS7822U and TLV2548IDW, TLV2553IDWRDL uniquely combines 11-channel multiplexing, on-chip oscillator, and three self-test modes in a single SOIC-20 package - making it optimal for compact, self-validating industrial data acquisition where channel count and functional safety are prioritized.
Availability
TLV2553IDWRDL is available at Aetrix Electronics and suitable for process control, portable data logging, and battery-powered instrumentation requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TLV2553IDWRDL 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
Texas Instruments is a global semiconductor leader specializing in analog and embedded processing technologies, with decades of expertise in precision data converters and industrial-grade IC design.
The TLV2553IDWRDL belongs to TI's low-power precision SAR ADC product line, engineered for battery-operated and thermally constrained applications demanding high channel density, integrated diagnostics, and robust serial interfacing.
FAQ
What is the maximum sampling rate of the TLV2553IDWRDL?
The TLV2553IDWRDL achieves up to 200 KSPS at VCC = 4.5–5.5 V with I/O CLOCK = 15 MHz. At 3 V operation, throughput drops to 150 KSPS due to internal oscillator frequency reduction. This rate applies to single-channel conversions; sequential 11-channel scanning reduces effective per-channel rate proportionally based on interface timing overhead.
Does the TLV2553IDWRDL require an external clock source?
No, the TLV2553IDWRDL includes an on-chip conversion clock with nominal frequencies of 2.56 MHz (at 2.7–3.6 V) or 4.15 MHz (at 4.5–5.5 V). While an external I/O CLOCK is required for serial communication, the ADC's core conversion timing is fully autonomous - eliminating need for external crystal or oscillator circuits.
How many analog input channels does the TLV2553IDWRDL support?
The TLV2553IDWRDL supports 11 single-ended analog input channels (AIN0 through AIN10), plus three internal self-test voltage sources selectable via command bits. The integrated 14-channel multiplexer routes one selected input to the 12-bit SAR core per conversion cycle.
What are the power-down modes available on the TLV2553IDWRDL?
The TLV2553IDWRDL offers two power-down modes: software power-down (activated via command register) and auto power-down (triggered automatically after conversion completes). Both reduce supply current to ≤1 μA, enabling ultra-low-power operation in battery-critical applications like portable data loggers.
Is the TLV2553IDWRDL pin-compatible with other devices in the TLV25xx family?
The TLV2553IDWRDL shares the same 20-pin SOIC (DW) package and core pinout with TLV2548IDW and TLV2544IDW, but differs in channel count, self-test capability, and internal register mapping. While physical layout is compatible, firmware and configuration must be validated per device datasheet - it is not a drop-in replacement for all TLV25xx variants.
TLV2553IDWRDL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- *
- Packaging:
- Bulk
- Product Status:
- Active
TLV2553IDWRDL FAQ
1.How can I place an order for TLV2553IDWRDL through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2553IDWRDL 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 TLV2553IDWRDL reliable?
The price and inventory of TLV2553IDWRDL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2553IDWRDL is usually 5 days.
3.What payment methods are accepted for TLV2553IDWRDL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2553IDWRDL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2553IDWRDL?
TLV2553IDWRDL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2553IDWRDL 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 TLV2553IDWRDL?
For technical support, including TLV2553IDWRDL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2553IDWRDL requirements.
6.How does Aetrix verify that TLV2553IDWRDL is sourced from the original manufacturer or authorized distributors?
All TLV2553IDWRDL 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 TLV2553IDWRDL meets industry standards.
7.What is the process for return or replacement of TLV2553IDWRDL?
All TLV2553IDWRDL units undergo pre-shipment inspection (PSI). If there is an issue with TLV2553IDWRDL, 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 TLV2553IDWRDL part is unused and in its original packaging.
Return procedure for TLV2553IDWRDL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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