(ACTIVE) 8-Bit, 40-MSPS Analog-to-Digital Converter (ADC)


The TLC5540 is a high-speed, 8-bit analog-to-digital converter (ADC) that converts at sampling rates up to 40 megasamples per second (MSPS). Using a semiflash architecture and CMOS process, the TLC5540 is able to convert at high speeds while still maintaining low power consumption and cost. The analog input bandwidth of 75 MHz (typ) makes this device an excellent choice for undersampling applications. Internal resistors are provided to generate 2-V full-scale reference voltages from a 5-V supply, thereby reducing external components. The digital outputs can be placed in a high impedance mode. The TLC5540 requires only a single 5-V supply for operation.


  • 8-Bit Resolution
  • Differential Linearity Error
    • ±0.3 LSB Typ, ±1 LSB Max (25°C)
    • ±1 LSB Max
  • Integral Linearity Error
    • ±0.6 LSB, ±0.75 LSB Max (25°C)
    • ±1 LSB Max
  • Maximum Conversion Rate of 40 Megasamples Per Second (MSPS) Max
  • Internal Sample and Hold Function
  • 5-V Single Supply Operation
  • Low Power Consumption...85 mW Typ
  • Analog Input Bandwidth...≥75 MHz Typ
  • Internal Reference Voltage Generators
  • applications
    • Quadrature Amplitude Modulation (QAM) and Quadrature Phase Shift Keying (QPSK) Demodulators
    • Digital Television
    • Charge-Coupled Device (CCD) Scanners
    • Video Conferencing
    • Digital Set-Top Box
    • Digital Down Converters
    • High-Speed Digital Signal Processor Front End


Sample Rate (Max) (MSPS) 40    
Features Low Power    
Resolution (Bits) 8    
Number of input channels 1    
SNR (dB) 44    
ENOB (Bits) 6.8    
SFDR (dB) 42    
Power consumption (Typ) (mW) 85    
Input range (Vp-p) 2    
Interface Parallel CMOS    
Operating temperature range (C) -40 to 85^0 to 70    
Analog input BW (MHz) 75    
Input buffer No    
Package Group SO|24^TSSOP|24    
Package size: mm2:W x L (PKG) 24SO: 117 mm2: 7.8 x 15 (SO|24)^24TSSOP: 50 mm2: 6.4 x 7.8 (TSSOP|24)    
Rating Catalog    
Architecture Flash    
DNL (Typ) (+/-LSB) 0.2    
INL (Typ) (+/-LSB) 0.6    
Reference mode Ext    

Technical Documents

Datasheet (1)

Application notes (7)

User guides (1)

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