Product details

Resolution (Bits) 10 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type Parallel Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 12 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 60 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
Resolution (Bits) 10 Sample rate (max) (ksps) 1250 Number of input channels 1 Interface type Parallel Architecture SAR Input type Single-ended Rating Catalog Reference mode External Input voltage range (max) (V) 5.5 Input voltage range (min) (V) 0 Features Oscillator Operating temperature range (°C) -40 to 85 Power consumption (typ) (mW) 12 Analog supply (min) (V) 2.7 Analog supply voltage (max) (V) 5.5 SNR (dB) 60 Digital supply (min) (V) 2.7 Digital supply (max) (V) 5.5
SOIC (DW) 24 159.65 mm² 15.5 x 10.3
  • Fast Throughput Rate: 1.25 MSPS at 5 V,
    625 KSPS at 3 V
  • Wide Analog Input: 0 V to AVDD
  • Differential Nonlinearity Error: < ± 1 LSB
  • Integral Nonlinearity Error: < ± 1 LSB
  • 8-to-1 Analog MUX - TLV1578
  • Internal OSC
  • Single 2.7-V to 5.5-V Supply Operation
  • Low Power: 12 mW at 3 V and 35 mW at 5 V
  • Auto Power Down of 1 mA Max
  • Software Power Down: 10 uA Max
  • Hardware Configurable
  • DSP and Microcontroller Compatible Parallel Interface
  • Binary/Twos Complement Output
  • Hardware Controlled Extended Sampling
  • Channel Sweep Mode Operation and Channel Select
  • Hardware or Software Start of Conversion
  • Applications
    • Mass Storage and HDD
    • Automotive
    • Digital Servos
    • Process Control
    • General-Purpose DSP
    • Image Sensor Processing
  • Fast Throughput Rate: 1.25 MSPS at 5 V,
    625 KSPS at 3 V
  • Wide Analog Input: 0 V to AVDD
  • Differential Nonlinearity Error: < ± 1 LSB
  • Integral Nonlinearity Error: < ± 1 LSB
  • 8-to-1 Analog MUX - TLV1578
  • Internal OSC
  • Single 2.7-V to 5.5-V Supply Operation
  • Low Power: 12 mW at 3 V and 35 mW at 5 V
  • Auto Power Down of 1 mA Max
  • Software Power Down: 10 uA Max
  • Hardware Configurable
  • DSP and Microcontroller Compatible Parallel Interface
  • Binary/Twos Complement Output
  • Hardware Controlled Extended Sampling
  • Channel Sweep Mode Operation and Channel Select
  • Hardware or Software Start of Conversion
  • Applications
    • Mass Storage and HDD
    • Automotive
    • Digital Servos
    • Process Control
    • General-Purpose DSP
    • Image Sensor Processing

The TLV1571/1578 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a high-speed 10-bit ADC, and a parallel interface. The device contains two on-chip control registers allowing control of channel selection, software conversion start, and power down via the bidirectional parallel port. The control registers can be set to a default mode by applying a dummy RD\ signal when WR\ is tied low. This allows the TLV1571/1578 to be configured by hardware. The MUX is independently accessible. This allows the user to insert a signal conditioning circuit such as an antialiasing filter or an amplifier, if required, between the MUX and the ADC. Therefore, one signal conditioning circuit can be used for all eight channels. The TLV1571 is a single channel analog input device with all the same functions as the TLV1578.

The TLV1571/TLV1578 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range from 0 V to AVDD and digitizes the input at a maximum 1.25 MSPS throughput rate at 5 V. The power dissipations are only 12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode that automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the ADC is further powered down to only 10 uA.

Very high throughput rate, simple parallel interface, and low power consumption make the TLV1571/TLV1578 an ideal choice for high-speed digital signal processing requiring multiple analog inputs.

The TLV1571/1578 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a high-speed 10-bit ADC, and a parallel interface. The device contains two on-chip control registers allowing control of channel selection, software conversion start, and power down via the bidirectional parallel port. The control registers can be set to a default mode by applying a dummy RD\ signal when WR\ is tied low. This allows the TLV1571/1578 to be configured by hardware. The MUX is independently accessible. This allows the user to insert a signal conditioning circuit such as an antialiasing filter or an amplifier, if required, between the MUX and the ADC. Therefore, one signal conditioning circuit can be used for all eight channels. The TLV1571 is a single channel analog input device with all the same functions as the TLV1578.

The TLV1571/TLV1578 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range from 0 V to AVDD and digitizes the input at a maximum 1.25 MSPS throughput rate at 5 V. The power dissipations are only 12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode that automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the ADC is further powered down to only 10 uA.

Very high throughput rate, simple parallel interface, and low power consumption make the TLV1571/TLV1578 an ideal choice for high-speed digital signal processing requiring multiple analog inputs.

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Technical documentation

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Type Title Date
* Data sheet 2.7 V to 5.5 V, 1-/-8 Channel 10-Bit Parallel Analog-to-Digital Converters datasheet (Rev. D) 11 Jul 2000
E-book Best of Baker's Best: Precision Data Converters -- SAR ADCs 21 May 2015
Application note Determining Minimum Acquisition Times for SAR ADCs, part 2 17 Mar 2011
Application note Determining Minimum Acquisition Times for SAR ADCs, part 1 (Rev. A) 10 Nov 2010
User guide Characteristics, Operation, and Use of the TLV571/TLV157x EVM (Rev. A) 30 Nov 2000
Application note Interfacing the TLV1571/78 Analog-to-Digital Converter to the TMS320C542 DSP 07 Oct 1999

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