TLV1549 10-Bit 38 kSPS ADC Ser. Out, Inherent S&H Function, Terminal Compat. W/TLC1549, TLC1549x |

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10-Bit 38 kSPS ADC Ser. Out, Inherent S&H Function, Terminal Compat. W/TLC1549, TLC1549x



The TLV1549C, TLV1549I, and TLV1549M are 10-bit, switched-capacitor, successive-approximation, analog-to-digital converters. The devices have two digital inputs and a 3-state output [chip select (CS\), input-output clock (I/O CLOCK), and data output (DATA OUT)] that provide a three-wire interface to the serial port of a host processor.

The sample-and-hold function is automatic. The converter incorporated in the device features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error conversion over the full operating free-air temperature range.

The TLV1549C is characterized for operation from 0°C to 70°C. The TLV1549I is characterized for operation from -40°C to 85°C. The TLV1549M is characterized for operation over the full military temperature range of -55°C to 125°C.


  • 3.3-V Supply Operation
  • 10-Bit-Resolution Analog-to-Digital Converter (ADC)
  • Inherent Sample and Hold Function
  • Total Unadjusted Error . . . ±1 LSB Max
  • On-Chip System Clock
  • Terminal Compatible With TLC1549 and TLC1549x
  • Application Report Available[dagger]
  • CMOS Technology


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Part number Order Resolution (Bits) Sample rate (Max) (kSPS) Number of input channels Interface Operating temperature range (C) Package Group Approx. price (US$) Power consumption (Typ) (mW) Package size: mm2:W x L (PKG) Architecture Input type Multi-channel configuration Reference mode Features Input range (Max) (V) Input range (Min) (V) Analog voltage AVDD (Min) (V) Analog voltage AVDD (Max) (V) Digital supply (Min) (V) Digital supply (Max) (V) INL (Max) (+/-LSB) Rating
TLV1549 Order now 10     38     1     SPI     -40 to 85     PDIP | 8
SOIC | 8    
2.66 | 1ku     1.32     8PDIP: 93 mm2: 9.43 x 9.81 (PDIP | 8)
8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
SAR     Single-Ended         Ext         3.6     0     3     3.6     3     3.6     1     Catalog