1FEATURES
· 3-MHz Sample Rate, 12-Bit Resolution
· Zero Latency
· Unipolar, Pseudo Differential Input, Range:
– 0 V to 2.5 V
· High-Speed Parallel Interface
· 69.5 dB SNR at 100 kHz I/P
· Power Dissipation 85 mW at 3 MSPS
· Nap Mode (10 mW Power Dissipation)
· Power Down (10 mW)
· Internal Reference
· Internal Reference Buffer
· 48-Pin TQFP Package

APPLICATIONS
· Optical Networking (DWDM, MEMS Based
Switching)
· Spectrum Analyzers
· High Speed Data Acquisition Systems
· High Speed Close-Loop Systems
· Telecommunication
· Ultra-Sound Detection

DESCRIPTION
The ADS7882 is a 12-bit 3-MSPS A-to-D converter
with 2.5-V internal reference. The device includes a
capacitor based SAR A/D converter with inherent
sample and hold. The device offers a 12-bit parallel
interface with an additional byte mode that provides
easy interface with 8-bit processors. The device has
a pseudo-differential input stage.
The –IN swing of ±200 mV is useful to compensate
for ground voltage mismatch between the ADC and sensor and also to cancel common-mode noise. With
nap mode enabled, the device operates at lower
power when used at lower conversion rates. The
device is available in 48-pin TQFP package.