ADS8402 Datasheet, PDF (1/27 Pages) Burr-Brown (TI) – 16-BIT, 1.25 MSPS, UNIPOLAR DIFFERENTIAL INPUT, MICRO POWER SAMPLING ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE

ADS8402
SLAS154B – DECEMBER 2002 – REVISED MAY 2003
16-BIT, 1.25 MSPS, UNIPOLAR DIFFERENTIAL INPUT, MICRO POWER SAMPLING
ANALOG-TO-DIGITAL CONVERTER WITH PARALLEL INTERFACE AND REFERENCE
FEATURES
D 1.25-MHz Sample Rate
D 16-Bit NMC Ensured Over Temperature
D Zero Latency
D Unipolar Differential Input Range: V_ref to –V_ref
D Onboard Reference
D Onboard Reference Buffer
D High-Speed Parallel Interface
D Power Dissipation: 155 mW at 1.25 MHz Typ
D Wide Digital Supply
D 8-/16-Bit Bus Transfer
D 48-Pin TQFP Package
APPLICATIONS
D DWDM
D Instrumentation
D High-Speed, High-Resolution, Zero Latency
Data Acquisition Systems
D Transducer Interface
D Medical Instruments
D Communication
DESCRIPTION
The ADS8402 is a 16-bit, 1.25 MHz A/D converter with an
internal 4.096-V reference. The device includes a 16-bit
capacitor-based SAR A/D converter with inherent sample
and hold. The ADS8402 offers a full 16-bit interface and an
8-bit option where data is read using two 8-bit read cycles.
The ADS8402 has a unipolar differential input. It is
available in a 48-lead TQFP package and is characterized
over the industrial –40°C to 85°C temperature range.
REFOUT
SAR
+IN +
_
–IN
REFIN
CDAC
Comparator
4.096-V
Internal
Reference
Clock
Output
Latches
and
3-State
Drivers
Conversion
and
Control Logic
BYTE
16-/8-Bit
Parallel DATA
Output Bus
RESET
CONVST
BUSY
CS
RD
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.
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.
Copyright  2002–2003, Texas Instruments Incorporated