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Texas Instruments TLV1572IDG4
- Part No.:
- TLV1572IDG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
TLV1572IDG4.pdf
- Description:
- IC ADC 10BIT SAR 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,304
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Product details
Overview
TLV1572IDG4 from Texas Instruments is a 10-bit successive-approximation ADC operating from a single 2.7 V to 5.5 V supply in an 8-pin SOIC package. It delivers 1.25 MSPS throughput, < ±1 LSB integral and differential nonlinearity, 59 dB SNR at 500 kHz input, and auto-powerdown to 10 µA - enabling high-speed data acquisition in automotive sensor interfaces and digital servo control loops.
For engineers reviewing the TLV1572IDG4 datasheet, TLV1572IDG4 pinout, TLV1572IDG4 application, or TLV1572IDG4 equivalent, this page provides verified electrical specifications, DSP/microcontroller serial interface timing, SOIC-8 terminal mapping, and validated alternative options for industrial embedded systems requiring low-power, glueless SPI/QSPI or TMS320 DSP connectivity.
Technical Context
The TLV1572IDG4 implements a SAR architecture with inherent sample-and-hold, supporting both DSP mode (4-wire: CS/SCLK/FS/DO) and µC mode (3-wire: CS/SCLK/DO, FS tied high). Its frame-sync–driven conversion initiation enables precise sampling alignment in real-time control systems.
It features dual-mode serial protocol compatibility: clock polarity = 0 and clock phase = 1 for SPI/QSPI, plus native TMS320 DSP serial port framing with 6 leading zero bits and 16-bit output format. Conversion latency is fixed at 10 SCLK cycles, with reset and sampling period requiring 6 SCLK cycles.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - delivers 1024 discrete output codes for medium-precision industrial sensing and motor feedback. |
| Throughput Rate | 1.25 MSPS at 5 V - supports real-time closed-loop control in digital servos and HDD read-channel applications. |
| INL / DNL | < ±1 LSB - ensures monotonicity and no missing codes, critical for accurate position or current measurement. |
| SNR + Distortion | 59 dB at fIN = 500 kHz - sufficient for 9.35 ENOB in audio-band and process control signal conditioning. |
| Power Consumption | 8 mW at 3 V / 25 mW at 5 V - enables battery-backed or energy-constrained remote DAQ nodes. |
| Auto-Powerdown Current | 10 µA maximum - reduces standby power in intermittently sampled systems like contact image sensors. |
| Reference Range | VREF = 2.7 V to VCC - allows flexible full-scale scaling from 0 to supply voltage without external reference IC. |
Pinout & Package
TLV1572IDG4 is housed in an 8-pin SOIC (D) package per JEDEC MS-012, with 1.27 mm pitch, 3.9 mm body width, and RoHS-compliant NiPdAu lead finish (MSL Level-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select / Powerdown Enable | Active-low enable; high state forces 3-state DO and auto-powerdown - enables multi-device SPI bus sharing. |
| VREF | Reference Voltage Input | Defines analog input span (0 to VREF); internally connects negative reference to GND - eliminates need for dual-supply references. |
| GND | Analog/Digital Ground | Single ground pin shared for analog and digital sections - requires careful PCB layout with star grounding for ≤59 dB SNR. |
| AIN | Analog Input | Single-ended input with 15 pF capacitance and 50 µA leakage - compatible with op-amp drivers having ≤1 kΩ source impedance. |
| DO | Serial Data Output | 3-state CMOS output; data valid on SCLK rising edge, latched by host on falling edge - matches standard SPI timing. |
| FS | Frame Sync Input | Mode-select pin: low = DSP mode (frame-triggered), high = µC mode (SCLK-triggered) - determines interface protocol without external logic. |
| VCC | Power Supply | 2.7 V to 5.5 V single supply - powers internal SAR, reference buffer, and digital interface; recommended connection to analog supply. |
| SCLK | Serial Clock Input | Asynchronous clock up to 20 MHz (5 V) or 10 MHz (3 V); controls data shift-out timing and internal conversion clocking. |
Key Features
| Feature | Design Value |
|---|---|
| Glueless Serial Interface | Direct connection to TMS320 DSPs and SPI/QSPI microcontrollers - eliminates level shifters, buffers, or protocol translators in motor control and imaging systems. |
| Inherent Sample-and-Hold | Integrated S/H eliminates external components and board space - reduces BOM cost and layout complexity for compact sensor modules. |
| Dual-Mode Operation | Hardware-mode selection via FS pin - enables one ADC design to serve both DSP-based real-time controllers and general-purpose µC platforms. |
| Low-Power Auto-Powerdown | 10 µA shutdown current activated automatically between conversions - extends battery life in portable test equipment and remote monitoring nodes. |
| Flexible Reference Architecture | VREF input accepts 2.7 V to VCC - supports ratiometric sensing with same supply powering transducers and ADC, improving system accuracy. |
Applications
| Mass Storage and HDD | Automotive Sensor Interface |
|---|---|
Use Scenario: Digitizing read/write channel signals in hard disk drive servo positioning systems. IC Role / Device Role / Timing Role: High-speed 10-bit ADC capturing head-position error signals with 1.25 MSPS sampling to support track-following algorithms. Use Value: 59 dB SNR at 500 kHz enables reliable detection of sub-micron head displacement, while SOIC-8 footprint minimizes PCB area in dense drive electronics. | Use Scenario: Converting throttle position, pedal angle, or temperature sensor outputs in engine control units. IC Role / Device Role / Timing Role: Single-supply ADC interfacing directly to 3.3 V microcontrollers via SPI, providing ratiometric measurements referenced to vehicle battery voltage. Use Value: Auto-powerdown to 10 µA reduces quiescent current in always-on ECU subsystems, and −40°C to 85°C rating ensures operation across under-hood thermal extremes. |
| Digital Servo Control | Contact Image Sensor Processing |
Use Scenario: Sampling motor current and encoder feedback in industrial servo drives for closed-loop torque and velocity regulation. IC Role / Device Role / Timing Role: Real-time ADC synchronized to TMS320 DSP frame sync for deterministic sampling aligned with PWM switching cycles. Use Value: DSP-mode timing (6 leading zeros, FS-triggered sampling) ensures jitter-free capture at exact commutation points, improving torque ripple suppression. | Use Scenario: Digitizing analog outputs from linear CCD arrays in document scanners and multifunction printers. IC Role / Device Role / Timing Role: Low-noise 10-bit converter operating at 625 KSPS (3 V) with inherent S/H to capture fast-moving line-scan images. Use Value: 15 pF AIN capacitance and 12 MHz full-power bandwidth support high-fidelity capture of sharp-edged optical signals without external buffering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit serial ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 12-bit resolution, 200 kSPS max, SPI-only (no DSP mode), 2.7–5.25 V supply | Better resolution but lower speed; lacks FS-driven DSP interface and auto-powerdown | Choose when higher precision outweighs throughput and DSP integration needs. |
| TLV2548IPW | 12-bit, 200 kSPS, 8-channel MUX, SPI interface, 2.7–5.5 V, 15 µA powerdown | Multi-channel capability and integrated MUX; slower and no DSP frame-sync support | Prefer for multi-sensor systems where channel count > speed, and DSP interface is not required. |
Compared with ADS7822U and TLV2548IPW, the TLV1572IDG4 uniquely balances 1.25 MSPS throughput, DSP-mode frame synchronization, and ultra-low 10 µA auto-powerdown - making it optimal for time-critical, low-power embedded control where interface simplicity and deterministic sampling matter most.
Availability
TLV1572IDG4 is available at Aetrix Electronics and suitable for automotive sensor interfaces, digital servo control loops, and contact image sensor processing requiring stable component supply across extended temperature ranges.
Supply support for TLV1572IDG4 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 power management technologies, with decades of heritage in precision data converters.
The TLV1572IDG4 belongs to TI's legacy high-speed serial ADC product line, designed specifically for cost-sensitive, space-constrained industrial and automotive systems needing glueless DSP/microcontroller connectivity and low-quiescent-power operation.
FAQ
What is the operating temperature range for TLV1572IDG4?
The TLV1572IDG4 is rated for −40°C to +85°C ambient operating temperature, matching the "I" grade specification defined in its datasheet. This extended range supports deployment in under-hood automotive environments, industrial PLCs, and outdoor embedded systems where thermal stability is critical. The device maintains specified INL, DNL, and SNR performance across this full range when operated within recommended supply and reference conditions.
Does TLV1572IDG4 require an external reference voltage?
No, the TLV1572IDG4 does not require an external reference IC - it accepts a user-supplied VREF input ranging from 2.7 V to VCC, which defines the full-scale analog input range (0 to VREF). The internal negative reference is hardwired to GND, enabling simple ratiometric configurations. For highest accuracy, a low-noise, stable reference source (e.g., REF3025) is recommended when VREF is derived independently of VCC.
How does TLV1572IDG4 interface with SPI-compatible microcontrollers?
The TLV1572IDG4 interfaces with SPI/QSPI microcontrollers in µC mode by tying FS high, using CS, SCLK, and DO lines only. It supports clock polarity = 0 (SCLK idles low) and clock phase = 1 (data sampled on falling edge), delivering 16-bit output with 6 leading zero bits. CS must remain low during the full 16-clock transfer, and if split into two 8-bit reads, the gap between them must be ≤100 µs to prevent auto-powerdown activation.
What is the minimum SCLK frequency supported by TLV1572IDG4?
The TLV1572IDG4 does not specify a minimum SCLK frequency - it operates down to DC for clocking, as confirmed by timing diagrams showing asynchronous CS assertion and FS sampling. However, for guaranteed timing margins and proper auto-powerdown recovery, SCLK should meet the maximum period limits: ≤100 ns (≥10 MHz) at 3 V and ≤50 ns (≥20 MHz) at 5 V per datasheet recommendations. Slower clocks may extend conversion time but do not violate functionality.
Can TLV1572IDG4 be used in place of TLV1572ID?
Yes, TLV1572IDG4 is a functionally identical, drop-in replacement for TLV1572ID - both are −40°C to +85°C grade 8-pin SOIC devices with identical electrical specifications, pinout, and marking (V1572I). The "G4" suffix denotes TI's green packaging standard (lead-free, RoHS-compliant NiPdAu finish), whereas "ID" may refer to earlier Pb-containing versions. No PCB or firmware changes are required when substituting TLV1572IDG4 for TLV1572ID in new designs or legacy replacements.
TLV1572IDG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 1.25M
- Number of Inputs:
- 1
- Input Type:
- Single Ended
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.5V
- Voltage - Supply, Digital:
- 2.7V ~ 5.5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-SOIC
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
TLV1572IDG4 FAQ
1.How can I place an order for TLV1572IDG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV1572IDG4 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 TLV1572IDG4 reliable?
The price and inventory of TLV1572IDG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV1572IDG4 is usually 5 days.
3.What payment methods are accepted for TLV1572IDG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV1572IDG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV1572IDG4?
TLV1572IDG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV1572IDG4 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 TLV1572IDG4?
For technical support, including TLV1572IDG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV1572IDG4 requirements.
6.How does Aetrix verify that TLV1572IDG4 is sourced from the original manufacturer or authorized distributors?
All TLV1572IDG4 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 TLV1572IDG4 meets industry standards.
7.What is the process for return or replacement of TLV1572IDG4?
All TLV1572IDG4 units undergo pre-shipment inspection (PSI). If there is an issue with TLV1572IDG4, 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 TLV1572IDG4 part is unused and in its original packaging.
Return procedure for TLV1572IDG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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