Overview
The TLV1570IPWR is a 10-bit data acquisition system produced by Texas Instruments. It combines an 8-channel input multiplexer (MUX), a high-speed 10-bit Analog-to-Digital Converter (ADC), an on-chip reference, and a high-speed serial interface. This device is designed for high-speed digital signal processing applications that require multiple analog inputs. It operates from a single 2.7-V to 5.5-V power supply and features low power consumption, making it suitable for a variety of applications including mass storage, automotive, digital servos, process control, and image sensor processing.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Resolution | Number of bits | 10-bit |
| Throughput Rate | Maximum sampling rate | 1.25 MSPS at 5 V, 625 KSPS at 3 V |
| Analog Input Channels | Number of channels | 8 |
| Analog Input Range | Voltage range | 0 V to AVDD |
| Supply Voltage | Operating voltage range | 2.7 V to 5.5 V |
| Power Consumption | Power dissipation | 8 mW at 2.7 V, 40 mW at 5.5 V |
| Autopower-Down Current | Current in autopower-down mode | 300 µA |
| Software Power Down Current | Current in software power down mode | 10 µA |
| Operating Temperature Range | Temperature range | -40°C to 85°C |
| Package Type | Package type and pins | TSSOP (PW), 20 pins |
| Signal-to-Noise and Distortion Ratio | SNDR | 57 dB |
| Differential Nonlinearity Error | DNL error | < ±1 LSB |
| Integral Nonlinearity Error | INL error | < ±1 LSB |
Key Features
- Fast Throughput Rate: 1.25 MSPS at 5 V, 625 KSPS at 3 V.
- Wide Analog Channel Input: 0 V to AVDD.
- Eight Analog Input Channels: With channel auto-scan capability.
- Low Power Consumption: 8 mW at 2.7 V, 40 mW at 5.5 V.
- Autopower-Down and Software Power Down: Automatic power down to 300 µA, and software power down to 10 µA.
- Glueless Serial Interface: Direct interface to TMS320 DSPs and SPI/QSPI compatible microcontrollers.
- Programmable Internal Reference Voltage: 3.8-V reference for 5-V operation, 2.3-V reference for 3-V operation.
- Independently Accessible MUX: Allows insertion of signal conditioning circuits between the MUX and ADC.
Applications
- Mass Storage and Hard Disk Drive: Suitable for high-speed data acquisition in storage systems.
- Automotive: Used in various automotive applications requiring multiple analog inputs.
- Digital Servos: Ideal for servo control systems that need precise and fast analog-to-digital conversion.
- Process Control: Applied in industrial process control systems for real-time data acquisition.
- General-Purpose DSP: Suitable for general-purpose digital signal processing tasks.
- Image Sensor Processing: Used in image processing applications that require high-speed analog-to-digital conversion.
Q & A
- What is the maximum throughput rate of the TLV1570IPWR?
The maximum throughput rate is 1.25 MSPS at 5 V and 625 KSPS at 3 V.
- How many analog input channels does the TLV1570IPWR have?
The device has 8 analog input channels.
- What is the operating voltage range of the TLV1570IPWR?
The device operates from a single 2.7-V to 5.5-V power supply.
- What is the power consumption of the TLV1570IPWR?
The power dissipation is 8 mW at 2.7 V and 40 mW at 5.5 V.
- Does the TLV1570IPWR have an autopower-down feature?
Yes, it automatically powers down to 300 µA after a conversion is performed, and further down to 10 µA with software power down enabled.
- What type of serial interface does the TLV1570IPWR use?
The device uses a simple 4- or 5-wire serial port that interfaces directly to TMS320 DSPs and SPI/QSPI compatible microcontrollers.
- Can the TLV1570IPWR be used with external reference voltages?
Yes, the device supports both internal and external reference voltage modes.
- What is the signal-to-noise and distortion ratio (SNDR) of the TLV1570IPWR?
The SNDR is 57 dB.
- What is the differential nonlinearity error (DNL) and integral nonlinearity error (INL) of the TLV1570IPWR?
Both DNL and INL errors are less than ±1 LSB.
- What are the typical applications of the TLV1570IPWR?
The device is used in mass storage, automotive, digital servos, process control, general-purpose DSP, and image sensor processing applications.
