My Inquiry
My Account
Texas Instruments TLV2548IPWR
- Part No.:
- TLV2548IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV2548IPWR.pdf
- Description:
- IC ADC 12BIT SAR 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,997
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TLV2548IPWR from Texas Instruments is a 12-bit, 200-KSPS SAR analog-to-digital converter with built-in reference, conversion clock, and 8× FIFO. It operates from 2.7 V to 5.5 V, supports SPI/DSP serial interfaces up to 20 MHz, and features differential/integral nonlinearity of ±1 LSB. It is used in industrial data acquisition systems requiring precise, low-power digitization of up to eight analog inputs.
For engineers reviewing the TLV2548IPWR datasheet, TLV2548IPWR pinout, TLV2548IPWR application, or TLV2548IPWR equivalent, key selection considerations include its programmable sampling period (12/24 SCLK), extended sampling via CSTART pin, internal 2 V/4 V reference options, FIFO-triggered interrupt capability, and −40°C to 85°C industrial temperature rating.
Technical Context
The TLV2548IPWR implements a charge redistribution successive-approximation ADC architecture with break-before-make analog multiplexer for eight single-ended inputs. Its control logic supports four conversion modes-single shot, repeat, sweep, and repeat sweep-with configurable FIFO trigger levels and EOC/INT pin function selection.
Sampling is programmable (short/long) or hardware-controlled via CSTART; conversion clock can be sourced from internal OSC, SCLK, SCLK/2, or SCLK/4. Internal reference selection (2 V or 4 V) and external reference support enable flexible full-scale range configuration across varying supply and signal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 12-bit SAR - delivers 1 LSB differential/integral nonlinearity for precision measurement applications |
| Max Throughput | 200 KSPS - enables real-time sampling of signals up to 100 kHz Nyquist bandwidth |
| SNR + Distortion | 70 dB at 12 kHz input - ensures high-fidelity digitization for sensor and instrumentation signals |
| Analog Supply | 2.7 V to 5.5 V - compatible with both 3.3 V and 5 V system rails without level-shifting |
| Input Bandwidth | 500 kHz - supports anti-aliasing filter design for DC–100 kHz signal conditioning |
| Reference Options | Internal 2 V or 4 V, or external - allows full-scale adjustment from 2 V to VCC − 1 LSB |
| Power-Down Current | 1 µA max (external ref) - enables ultra-low quiescent power in battery-operated monitoring nodes |
| Serial Interface | SPI (CPOL=0, CPHA=0) / DSP frame-sync - direct connection to TI C2000, MSP430, and ARM Cortex-M microcontrollers |
Pinout & Package
TLV2548IPWR is housed in a 20-pin TSSOP (PW) package with 0.65 mm pitch, 6.5 mm × 4.4 mm body, and exposed pad for thermal enhancement. Pin functions are validated per SLAS198E Rev JUNE 2003.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDO | Serial Data Output | 3-state MSB-first output; presents conversion result or FIFO content after CS↓ or FS↓ |
| SDI | Serial Data Input | Accepts 4-bit command + 12-bit configuration; supports channel select, CFR write, FIFO read |
| SCLK | Serial Clock Input | Up to 20 MHz; serves as interface clock and optional conversion clock source (SCLK/SCLK/2/SCLK/4) |
| EOC/(INT) | End-of-Conversion / Interrupt | Configurable as EOC (mode 00 only) or INT (all other modes); asserts on FIFO threshold or conversion completion |
| VCC | Analog/Digital Supply | Single 2.7–5.5 V rail powers analog core, digital logic, and reference circuitry |
| A0–A7 | Analog Input Channels | Eight single-ended inputs; internally multiplexed; ≤1 kΩ source impedance recommended |
| CS | Chip Select | Active-low; resets command counter, enables SDI, releases SDO from 3-state; must transition while SCLK = low |
| REFP / REFM | Reference Inputs | Support external reference (differential) or decouple internal reference (REFM tied to AGND) |
| PWDN | Power-Down Control | Logic-low disables analog and reference circuits; wake-up via CS, FS, or CSTART transition |
| CSTART | Asynchronous Sampling Trigger | Falling edge starts sampling; rising edge ends sampling and initiates conversion; required for extended sampling mode |
Key Features
| Feature | Design Value |
|---|---|
| On-chip 8× FIFO buffer | Reduces host processor overhead by storing up to eight 12-bit results before readout |
| Programmable auto-channel sweep | Four preconfigured sequences (e.g., 0–1–2–3–4–5–6–7) enable automated multi-channel monitoring without firmware polling |
| Dual sampling control | Combines software-programmable (12/24 SCLK) and hardware-triggered (CSTART) sampling for mixed-signal timing flexibility |
| Internal reference with dual voltage | Selectable 2 V or 4 V reference eliminates external reference ICs in cost-sensitive 3.3 V or 5 V systems |
| Low-power operation | 1.0 mA at 3.3 V (external ref); 1 µA in power-down - extends battery life in portable data loggers |
| SPI/DSP dual-interface compatibility | Native support for microcontroller SPI ports and TI DSP frame-sync protocol simplifies integration across MCU and DSP platforms |
Applications
| Industrial Sensor Node | Motor Drive Current Monitoring |
|---|---|
Use Scenario: Continuous acquisition of temperature, pressure, and humidity from eight analog sensors in a factory-floor environmental monitor. IC Role / Device Role / Timing Role: Central 12-bit ADC managing time-multiplexed sampling of all channels via programmable sweep mode and FIFO-triggered interrupts. Use Value: Eliminates need for external FIFO or microcontroller DMA; reduces firmware complexity and CPU load by 70% versus polled sampling. | Use Scenario: Real-time digitization of three-phase motor current feedback signals in an IGBT-based variable-frequency drive. IC Role / Device Role / Timing Role: High-accuracy ADC synchronizing sampling to PWM periods using CSTART-triggered extended sampling to avoid switching noise corruption. Use Value: Achieves ±1 LSB linearity despite 500 kHz analog input bandwidth and 200 KSPS throughput, enabling precise torque control. |
| Programmable Logic Controller (PLC) Analog Input Module | Portable Battery-Powered Data Logger |
Use Scenario: Eight-channel analog input card in a DIN-rail PLC accepting 0–10 V or 4–20 mA field signals via external conditioning. IC Role / Device Role / Timing Role: Precision ADC providing isolated, calibrated digitization with internal 4 V reference and programmable gain-stage interface. Use Value: Enables 12-bit resolution across full industrial temperature range (−40°C to 85°C) without calibration drift compensation firmware. | Use Scenario: Compact environmental logger recording soil moisture, light, and ambient temperature over weeks on two AA cells. IC Role / Device Role / Timing Role: Ultra-low-power ADC operating in repeat-sweep mode with autopower-down between samples to minimize average current draw. Use Value: Delivers 1 µA max power-down current and 1.0 mA active current at 3.3 V, extending battery life to >12 months at 1-sample-per-second rate. |
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, no FIFO, 200 KSPS, SPI-only (no DSP FS), 2.7–5.25 V supply | Lacks channel sweep, FIFO buffering, and CSTART control; suited for simpler, lower-resolution monitoring | Select when 8-bit accuracy suffices and system lacks DSP interface or multi-channel automation needs |
| ADS8320EB | 16-bit resolution, 100 KSPS, no FIFO, SPI-only, 2.7–5.5 V, external reference only | Higher resolution but slower throughput and no internal reference or sweep functionality | Select when absolute precision >12-bit is required and firmware can manage channel sequencing and reference stability |
Compared with TLV2548IPWR, ADS7822U trades resolution and feature set for cost and simplicity, while ADS8320EB prioritizes resolution over speed and integration-neither provides the same combination of 12-bit accuracy, 200-KSPS throughput, FIFO, internal reference, and hardware-triggered sampling in a single 20-pin TSSOP package.
Availability
TLV2548IPWR is available at Aetrix Electronics and suitable for industrial sensor nodes, motor drive current monitoring, PLC analog input modules, and portable battery-powered data loggers requiring stable component supply across extended temperature ranges.
Supply support for TLV2548IPWR 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, embedded processing, and connectivity technologies for industrial, automotive, and consumer applications.
The TLV2548IPWR belongs to TI's precision data acquisition portfolio, designed specifically for low-power, multi-channel industrial measurement systems where integration, reliability, and wide supply range are critical.
FAQ
What is the maximum sampling rate supported by the TLV2548IPWR?
The TLV2548IPWR achieves a maximum throughput of 200 KSPS under optimal conditions-specifically when using SCLK as the conversion clock source at 20 MHz and selecting short sampling (12 SCLKs). This yields a minimum conversion time of 3.86 µs. Actual sustained rate depends on interface overhead, FIFO management, and selected conversion mode.
Does the TLV2548IPWR require an external reference voltage?
No, the TLV2548IPWR does not require an external reference voltage. It integrates an internal reference selectable between 2 V and 4 V. When using the internal reference, REFM must be tied to analog ground. An external reference may be applied differentially between REFP and REFM for enhanced accuracy or custom full-scale range.
How many analog input channels does the TLV2548IPWR support?
The TLV2548IPWR supports eight single-ended analog input channels (A0 through A7), as confirmed by its pinout, functional block diagram, and command set documentation. This distinguishes it from the TLV2544 variant, which supports only four channels. Channel selection is performed via 4-bit command codes sent on SDI.
What is the purpose of the CSTART pin on the TLV2548IPWR?
The CSTART pin on the TLV2548IPWR provides hardware-controlled extended sampling: its falling edge initiates sampling, and its rising edge terminates sampling and starts conversion. This asynchronous control decouples sampling timing from SCLK, enabling precise capture of high-impedance or noisy signals-critical in motor current sensing and sensor conditioning applications.
Can the TLV2548IPWR operate across the full industrial temperature range?
Yes, the TLV2548IPWR is characterized for operation from −40°C to +85°C, as specified in the "AVAILABLE OPTIONS" table of SLAS198E. The 'I' suffix in TLV2548IPWR denotes the industrial temperature grade, making it suitable for deployment in harsh environments such as factory automation, outdoor instrumentation, and motor control enclosures.
TLV2548IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Number of Bits:
- 12
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- SPI, DSP
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 20-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLV2548IPWR FAQ
1.How can I place an order for TLV2548IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV2548IPWR 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 TLV2548IPWR reliable?
The price and inventory of TLV2548IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV2548IPWR is usually 5 days.
3.What payment methods are accepted for TLV2548IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV2548IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV2548IPWR?
TLV2548IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV2548IPWR 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 TLV2548IPWR?
For technical support, including TLV2548IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV2548IPWR requirements.
6.How does Aetrix verify that TLV2548IPWR is sourced from the original manufacturer or authorized distributors?
All TLV2548IPWR 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 TLV2548IPWR meets industry standards.
7.What is the process for return or replacement of TLV2548IPWR?
All TLV2548IPWR units undergo pre-shipment inspection (PSI). If there is an issue with TLV2548IPWR, 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 TLV2548IPWR part is unused and in its original packaging.
Return procedure for TLV2548IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TLV2548IPWR Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
