Features: 10-Bit Resolution 20 MSPS Sampling
Analog-to-Digital Converter (ADC)
Power Dissipation . . . 107 mW Typ
5-V Single Supply Operation
Differential Nonlinearity . . . ±0.5 LSB Typ
No Missing Codes
Power Down (Standby) Mode
Three State Outputs
Digital I/Os Compatible With 5-V or 3.3-V
Logic
Adjustable Reference Input
Small Outline Package (SOIC), Super Small
Outline Package (SSOP), or Thin Small
Outline Package (TSOP)
Pin Compatible With the Analog
Devices AD876ApplicationCommunications
Multimedia
Digital Video Systems
High-Speed DSP Front-End ...TMS320C6x
Pinout
SpecificationsSupply voltage, AVDD to AGND, DV DD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to 6.5 V
Reference voltage input range to AGND, V I(REFTF),
V I(REFBF), V I(REFBS), VI(REFTS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.3 V to AV + 0.3 VDD
Analog input voltage range to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . 0.3 V to AV DD + 0.3 V
Digital input voltage range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to DVDD + 0.3 V
Digital output voltage range applied from external source . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . 0.5 V to DVDD
Operating virtual junction temperature range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-55 to 150
Operating free-air temperature range, TA : TLC876C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 70
TLC876I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... -45 °C to 85
TLC876M . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... -55°C to 125
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . -65 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . 260°CDescriptionThe TLC876M is a CMOS, low-power, 10-bit, 20 MSPS analog-to-digital converter (ADC). The speed, resolution, and single-supply operation are suited for applications in video, multimedia, imaging, high-speed acquisition, and communications. The low-power and single-supply operation satisfy requirements for high-speed portable applications. The speed and resolution ideally suit charge-coupled device (CCD) input systems such as color scanners, digital copiers, electronic still cameras, and camcorders. A multistage pipelined architecture with output error correction logic provides for no missing codes over the full operating temperature range. Force and sense connections to the reference inputs provide a more accurate internal reference voltage to the reference resistor string.
A standby mode of operation reduces the power to typically 15 mW. The digital I/O interfaces to either 5-V or 3.3-V logic and the digital output terminals can be placed in a high-impedance state. The format of the output data is straight binary coding.
A pipelined multistaged architecture achieves a high sample rate with low power consumption. The TLC876M distributes the conversion over several smaller ADC sub-blocks, refining the conversion with progressively higher accuracy as the device passes the results from stage to stage. This distributed conversion requires a small fraction of the 1023 comparators used in a traditional flash ADC. A sample-and-hold amplifier (SHA) within each of the stages permits the first stage to operate on a new input sample while the second through the fifth stages operate on the four preceding samples.
TLC876M Data Sheet
