SPT7864 Datasheet, PDF (1/8 Pages) Cadeka Microcircuits LLC. – 10-BIT, 40 MSPS A/D CONVERTER

SPT7864
FEATURES
• 40 MSPS maximum sample rate
• 9.5 effective number of bits at ƒ _IN = 10 MHz and
ƒ_S = 40 MSPS
• 2V _P-P full-scale input range
• Differential input 2.5 V common mode
• Internal or external voltage reference
• Common-mode voltage reference output
• +3 V / +5 V digital output logic compatibility
• +5 V analog power supply
• Sleep mode power dissipation: 55 mW
10-BIT, 40 MSPS A/D CONVERTER
TECHNICAL DATA
APPLICATIONS
• Video imaging
• Medical imaging
• Radar receivers
• IR imaging
• Digital communications
NOVEMBER 20, 2001
GENERAL DESCRIPTION
The SPT7864 is a 10-bit, 40 MSPS analog-to-digital con-
verter with low power dissipation at only 395 mW typical at
40 MSPS with a power supply of +5.0 V. The digital outputs
are +3 V or +5 V, and are user selectable. The SPT7864
has incorporated proprietary circuit design and CMOS
processing technologies to achieve its advanced perfor-
mance. Inputs and outputs are TTL/CMOS compatible to
interface with TTL/CMOS logic systems. Output data for-
mat is offset binary.
The SPT7864 is available in a 28-lead SSOP package
over the commercial temperature range.
BLOCK DIAGRAM
V_DD GND
Sleep V_CM
EXT/INT
REF_H
REF_L
V_IN
V_IN
Bandgap
Bias
Reference
Cell
THA
10-BIT
40 MSPS
10
ADC
2
CLK, CLK
Data
1
Output
Latches
& Buffers
10
OR
D0–D9
GND OV_DD