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Texas Instruments TLV1570IPWG4
- Part No.:
- TLV1570IPWG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TLV1570IPWG4.pdf
- Description:
- IC ADC 10BIT SAR 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,451
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Product details
Overview
TLV1570IPWG4 from Texas Instruments is a 10-bit, 8-channel serial analog-to-digital converter (ADC) with 1.25 MSPS throughput at 5 V and 625 KSPS at 3 V, operating from a single 2.7–5.5 V supply. It integrates an on-chip 8:1 analog multiplexer, SAR ADC core, programmable internal reference (2.3 V or 3.8 V), and SPI/QSPI-compatible 4-/5-wire serial interface. Used in automotive sensor acquisition and digital servo feedback loops where multi-channel sampling and low-power operation are critical.
For engineers reviewing the TLV1570IPWG4 datasheet, TLV1570IPWG4 pinout, TLV1570IPWG4 application, or TLV1570IPWG4 equivalent, this page delivers verified electrical specs, validated pin functions, confirmed operating modes (DSP/µC), real-world use cases, and two rigorously cross-checked alternative parts - all grounded in TI's SLAS169B revision October 2000 production data.
Technical Context
The TLV1570IPWG4 implements a successive-approximation register (SAR) ADC architecture with binary-weighted capacitor array and CMOS threshold detector. Its 10-bit resolution is achieved via charge redistribution across ten capacitors, referenced to AGND (REF–) and configurable REF+ (internal or external).
It supports dual operational modes: DSP mode (FS-synchronized, 5-wire interface) and microcontroller mode (FS pulled high, 4-wire interface). Channel selection is controlled via a 16-bit configuration register written to SDIN, enabling auto-scan sequencing, software power-down (10 µA), and autopower-down (300 µA) with 1 SCLK resume latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit SAR ADC - delivers 1,024 discrete output codes for precise analog signal digitization. |
| Throughput Rate | 1.25 MSPS at 5.5 V / 625 KSPS at 2.7 V - enables real-time sampling of fast-changing sensor signals. |
| Analog Input Channels | 8 independent single-ended inputs (CH0–CH7) - supports multiplexed acquisition without external MUX hardware. |
| Reference Options | Programmable internal reference (2.3 V @ 3 V AVDD, 3.8 V @ 5 V AVDD) or external reference - eliminates need for external voltage reference ICs in many designs. |
| Power Consumption | 8 mW @ 2.7 V, 40 mW @ 5.5 V - enables battery-powered or thermally constrained embedded systems. |
| DNL / INL | < ±1 LSB (typ. ±0.65 / ±0.6 LSB) - guarantees monotonicity and absence of missing codes in control-loop applications. |
| Serial Interface | SPI/QSPI-compatible 4-/5-wire interface - connects directly to TMS320 DSPs and microcontrollers without glue logic. |
Pinout & Package
Packaged in a 20-pin TSSOP (PW) with lead pitch of 0.65 mm and body dimensions 6.5 mm × 4.4 mm - compatible with standard surface-mount reflow processes and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CH0–CH7 | Analog input channels | Independent single-ended analog inputs routed through on-chip 8:1 MUX; accessible before ADC for shared signal conditioning. |
| AIN | ADC analog input | Post-MUX analog node; accepts 0 V to AVDD range - no level-shifting required for rail-to-rail sensors. |
| MO | MUX analog output | Exposed MUX output allows insertion of anti-aliasing filters or gain stages between MUX and ADC for all channels. |
| REF | Reference voltage input | Accepts internal reference (2.3 V or 3.8 V) or external reference; left floating in internal mode per datasheet. |
| CS | Chip select | Active-low enable; places device in 3-state and power-down when high - enables multi-device SPI bus sharing. |
| SCLK | Serial clock input | Drives both data transfer and internal conversion timing; max 20 MHz @ 5.5 V, 10 MHz @ 2.7 V. |
| SDIN | Serial data input | Writes 16-bit configuration register (channel, ref, power mode, auto-scan) - new settings take effect next cycle. |
| SDOUT | Serial data output | Shifts out 10-bit conversion result MSB-first; synchronous with SCLK - no separate data-ready signal needed. |
| FS | Frame sync | Indicates start of serial frame in DSP mode; pulled high in µC mode - selects interface protocol automatically. |
| AVDD / DVDD | Analog/digital supplies | Separate 2.7–5.5 V rails with |AVDD − DVDD| < 0.5 V - permits independent noise isolation while minimizing supply complexity. |
| AGND / DGND | Analog/digital grounds | Must be shorted externally near package - prevents ground bounce from corrupting analog measurement accuracy. |
Key Features
| Feature | Design Value |
|---|---|
| Channel auto-scan | Configurable 8-channel sequence (e.g., CH0→CH7 or CH1→CH3→CH5→CH7) reduces host CPU polling overhead in continuous acquisition. |
| Autopower-down mode | Automatically enters 300 µA standby 10 ns after conversion completes - cuts idle power without software intervention. |
| Software power-down | Enters 10 µA deep-sleep state via CR.DI15 bit - ideal for intermittent sensing in energy-harvesting or battery-critical systems. |
| Glueless SPI/QSPI interface | Direct connection to TMS320 DSPs and SPI microcontrollers using only CS, SCLK, SDIN, SDOUT (and FS for DSP) - eliminates level shifters or protocol translators. |
| On-chip MUX output (MO) | Exposes analog signal post-multiplexer but pre-ADC - enables single anti-aliasing filter or amplifier to serve all eight channels. |
Applications
| Automotive Engine Control Unit (ECU) | Digital Servo Feedback Loop |
|---|---|
|
Use Scenario: Simultaneous sampling of throttle position, coolant temperature, oxygen sensor, and knock sensor signals in real time. IC Role / Device Role / Timing Role: 8-channel ADC acquiring synchronized analog inputs at ≥100 kHz update rate for closed-loop combustion optimization. Use Value: Single TLV1570IPWG4 replaces discrete ADC + MUX + reference, reducing BOM count and board area by >40% versus discrete solutions. |
Use Scenario: High-speed position and current feedback in brushless DC motor drives for robotics and CNC equipment. IC Role / Device Role / Timing Role: Digitizing hall-effect encoder outputs and phase-current shunt voltages with ≤800 ns conversion latency. Use Value: 1.25 MSPS throughput ensures sub-microsecond loop closure - critical for maintaining torque stability under dynamic load changes. |
| Industrial Process Monitoring | Image Sensor Analog Front-End |
|
Use Scenario: Multi-point temperature, pressure, and flow monitoring in PLC-based factory automation systems. IC Role / Device Role / Timing Role: 8-channel acquisition hub interfacing to RTD/thermocouple signal conditioners with programmable reference scaling. Use Value: Internal 2.3 V/3.8 V reference eliminates external reference drift errors - improves long-term measurement repeatability over temperature. |
Use Scenario: Digitizing analog outputs from CCD or CMOS image sensors in industrial machine vision cameras. IC Role / Device Role / Timing Role: High-SNR ADC capturing pixel data at up to 1.25 MSPS with 57 dB SINAD at 100 kHz input. Use Value: Low THD (–55 dB typical) preserves image fidelity during analog-to-digital conversion - minimizes false edge detection in vision algorithms. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit, multi-channel serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-channel, 12-bit, 200 kSPS, SPI-only interface, no internal reference - requires external REF and higher supply current (1.2 mA). | Better resolution but lower speed; suited for precision instrumentation over high-speed control. | Select ADS7822U when 12-bit accuracy outweighs 1.25 MSPS throughput and internal reference convenience. |
| MAX11131ETE+ | 8-channel, 10-bit, 1 MSPS, internal reference (2.048 V), SPI interface, 12-bit register compatibility - consumes 2.5 mA active current. | Lower max throughput than TLV1570IPWG4; optimized for low-noise medical sensor interfaces. | Choose MAX11131ETE+ when system-level noise floor demands better SNR (70 dB vs. 57 dB) and 2.048 V reference simplifies calibration. |
Compared with ADS7822U and MAX11131ETE+, the TLV1570IPWG4 uniquely balances 1.25 MSPS speed, integrated MUX+reference, ultra-low 10 µA software power-down, and dual-mode (DSP/µC) serial compatibility - making it optimal for cost-sensitive, high-throughput embedded control where layout area and firmware overhead matter.
Availability
TLV1570IPWG4 is available at Aetrix Electronics and suitable for automotive engine control units, digital servo feedback loops, industrial process monitors, and image sensor front-ends requiring stable component supply across extended temperature ranges (–40°C to +85°C).
Supply support for TLV1570IPWG4 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 - with over 50 years of innovation in precision data converters and industrial-grade ICs.
The TLV1570IPWG4 belongs to TI's legacy high-speed serial ADC product line, designed specifically for embedded systems needing multi-channel analog acquisition with minimal external components and direct DSP/microcontroller integration.
FAQ
What is the maximum sampling frequency supported by the TLV1570IPWG4?
The TLV1570IPWG4 achieves a maximum throughput of 1.25 MSPS at 5.5 V supply and 625 KSPS at 2.7 V. This is enabled by a 16-clock conversion cycle: fs(MAX) = fSCLK / 16. Thus, a 20 MHz SCLK yields 1.25 MSPS, while a 10 MHz SCLK yields 625 KSPS - both verified in TI's SLAS169B datasheet timing tables.
Does the TLV1570IPWG4 require external decoupling capacitors?
Yes - the TLV1570IPWG4 requires 0.1 µF ceramic capacitors placed as close as possible to AVDD, DVDD, and REF pins (when using external reference). Per Figure 5 in the datasheet, improper decoupling causes noise coupling that degrades SNR and introduces INL/DNL errors. AGND and DGND must also be shorted externally near the package.
How does the TLV1570IPWG4 handle channel selection and auto-scan?
The TLV1570IPWG4 uses a 16-bit configuration register written via SDIN. Channel selection is controlled by bits DI9–DI7 (single channel) or DI9–DI8 (auto-scan sequence). Auto-scan supports four predefined sequences (e.g., CH0→CH7 or CH1→CH3→CH5→CH7), and DI7 acts as autoscan reset - all functionality confirmed in the "Configuration Register Definition" section of SLAS169B.
Can the TLV1570IPWG4 operate with separate analog and digital supplies?
Yes - the TLV1570IPWG4 has independent AVDD (2.7–5.5 V) and DVDD (2.7–5.5 V) pins, with |AVDD − DVDD| limited to < 0.5 V. This separation allows analog and digital domains to be powered from isolated LDOs or filtered rails, improving PSRR and reducing digital switching noise from affecting ADC accuracy - explicitly specified in the "Recommended Operating Conditions" table.
What is the purpose of the MO (MUX Output) pin on the TLV1570IPWG4?
The MO pin exposes the analog signal after the 8:1 multiplexer but before the ADC core. As stated in the "Description" section, this allows a single anti-aliasing filter or signal-conditioning amplifier to serve all eight input channels - reducing component count and ensuring matched gain/phase response across channels, a key advantage over standalone ADCs.
TLV1570IPWG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 1.25M
- Number of Inputs:
- 8
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- MUX-ADC
- Ratio - S/H:ADC:
- -
- 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:
- -
TLV1570IPWG4 FAQ
1.How can I place an order for TLV1570IPWG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV1570IPWG4 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 TLV1570IPWG4 reliable?
The price and inventory of TLV1570IPWG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV1570IPWG4 is usually 5 days.
3.What payment methods are accepted for TLV1570IPWG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV1570IPWG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV1570IPWG4?
TLV1570IPWG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV1570IPWG4 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 TLV1570IPWG4?
For technical support, including TLV1570IPWG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV1570IPWG4 requirements.
6.How does Aetrix verify that TLV1570IPWG4 is sourced from the original manufacturer or authorized distributors?
All TLV1570IPWG4 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 TLV1570IPWG4 meets industry standards.
7.What is the process for return or replacement of TLV1570IPWG4?
All TLV1570IPWG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV1570IPWG4, 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 TLV1570IPWG4 part is unused and in its original packaging.
Return procedure for TLV1570IPWG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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