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Part: TLC876C
Category:
Data Conversion
-> ADC (Analog to Digital Converters)
-> 10-14 bit
Description: 10-bit 20 MSPS Parallel Output CMOS Analog-to-digital Converters
Company: Texas Instruments, Inc.
Datasheet: Download TLC876C datasheet File size : 548 kB
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Datasheet text preview:
TLC876M, TLC876I, TLC876C 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS
SLAS140E JULY 1997 REVISED OCTOBER 2000
features
applications
D D D D D D D D D D D
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 AD876
D D D D
Communications Multimedia Digital Video Systems High-Speed DSP Front-End . . . TMS320C6x
DB, DW, OR PW PACKAGE (TOP VIEW)
description
The TLC876 is a CMOS, low-power, 10-bit, 20 13 16 MSPS analog-to-digital converter (ADC). The 14 15 speed, resolution, and single-supply operation are suited for applications in video, multimedia, NC No internal connection 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 TLC876 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. The TLC876C is characterized for operation from 0°C to 70°C, the TLC876I is characterized for operation from 40°C to 85°C, and the TLC876M is characterized for operation over the full military temperature range of 55°C to 125°C.
AGND DRVDD D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DRGND DGND
1 2 3 4 5 6 7 8 9 10 11 12
28 27 26 25 24 23 22 21 20 19 18 17
AVDD AIN CML REFBS REFBF NC REFTF REFTS DGND AGND DVDD STBY OE CLK
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Copyright © 2000, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are tested unless otherwise noted. On all other products, production processing does not necessarily include testing of all parameters.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
1
TLC876M, TLC876I, TLC876C 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS
SLAS140E JULY 1997 REVISED OCTOBER 2000
AVAILABLE OPTIONS PACKAGE TA 0°C to 70°C 40°C to 85°C 55°C to 125°C SUPER SMALL OUTLINE (DB) TLC876CDB TLC876IDB -- SMALL OUTLINE (DW) TLC876CDW TLC876IDW TLC876MDW TSSOP (PW) TLC876CPW TLC876IPW --
functional block diagram
SHA 27 SHA GAIN SHA GAIN SHA GAIN SHA GAIN ADC ADC ADC 2 Correction Logic 10 Output Buffers 12 10 Sample and hold amplifier 3 (MSB) D9 (LSB) D0 ADC ADC
AIN
DAC 2
DAC
DAC 2
DAC 2 2
2
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
TLC876M, TLC876I, TLC876C 10-BIT 20 MSPS PARALLEL OUTPUT CMOS ANALOG-TO-DIGITAL CONVERTERS
SLAS140E JULY 1997 REVISED OCTOBER 2000
equivalent input and output circuits
D0D9 OUTPUT CIRCUIT DVDD DVDD DRVDD AIN CLK D0D9 0.3 pF DRGND DRVDD AVDD 30 typ 0.5 pF typ ALL DIGITAL INPUT CIRCUITS AIN INPUT CIRCUIT
DGND DRGND
AGND
DGND REFERENCE INPUT CIRCUIT AVDD 30
REFTF
AVSS AVDD Internal Reference Voltage
REFTS
29
AGND AVDD
REFBS
35
Internal Reference Voltage AVSS
AVDD 34
REFBF
AGND
POST OFFICE BOX 655303
· DALLAS, TEXAS 75265
3
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