12-BIT 500KSPS ADC
GENERAL DESCRIPTION
The BW1251X is a CMOS 3.3V 12-bit analog-to-
digital converter (ADC). It converts the analog input
signal into 12-bit binary digital codes at a maximum
conversion rate of 500KSPS with 2.5MHz clock.
The device is a recycling type monolithic ADC with
an on-chip sample-and-hold function.
power down mode.
The ADC has
BW1251X
FEATURES
鈥?Resolution : 12-bit
鈥?Maximum Conversion Rate : 500KSPS
鈥?Main Clock : 2.5MHz
鈥?Power Supply : 3.3V 鹵0.3V
鈥?Total Current : 20uA (Standby Mode)
2.2mA (Normal Operation)
鈥?Input Range : 0.0V ~ 3.3V (3.3V
P-P
)
鈥?Differential Linearity Error : 鹵0.7 LSB
鈥?Integral Linearity Error : 鹵0.8 LSB
鈥?Signal to Noise & Distortion Ratio : 70dB
鈥?Digital Output : CMOS Level
鈥?Operating Temperature Range : 0 擄C ~ 70 擄C
TYPICAL APPLICATIONS
MICOM Interface
Portable Equipment
Low-Voltage Low-Power Application
FUNCTIONAL BLOCK DIAGRAM
AINT
MDAC1
MAIN
BIAS
MDAC2
STBY
VREF
AGND
REF
GEN
FLASH1
FLASH2
CML
GEN
CKIN
STC
CLOCK
GEN
DIGITAL
LOGIC
DO[11:0]
EOC
Ver 1.2 (Apr. 2002)
No responsibility is assumed by SEC for its use nor for any infringements of patents
or other rights of third parties that may result from its use. The content of this data
sheet is subject to change without any notice.
SAMSUNG ELECTRONICS Co. LTD