SPT7922

• Monolithic
• 12-Bit 30 MSPS Converter
• 64 dB SNR @ 3.58 MHz Input
• On-Chip Track/Hold
• Bipolar ±2.0 V Analog Input
• Low Power (1.1 W Typical)
• 5 pF Input Capacitance
• TTL Outputs

• Radar Receivers
• Professional Video
• Instrumentation
• Medical Imaging
• Electronic Warfare
• Digital Communications
• Digital Spectrum Analyzers
• Electro-Optics

Supply Voltages
V_CC ...........................................................................+6 V
V_EE ........................................................................... -6 V
Input Voltages
Analog Input .............................................. V_FBV_INV_FT
V_FT, V_FB. ................................................... +3.0 V, -3.0 V
Reference Ladder Current ....................................... 12 m
CLK IN ...................................................................... V_CC
Output
Digital Outputs .............................................. 0 to -30 mA
Temperature
Operating Temperature ................................. 0 to +70 °C
Junction Temperature......................................... +175 °C
Lead Temperature, (soldering 10 seconds) ....... +300 °C
Storage Temperature ...............................-65 to +150 °C

The SPT7922 A/D converter is the industry's first 12-bit monolithic analog-to-digital converter capable of sample rates of greater than 30 MSPS. On board input buffer and track/hold function assures excellent dynamic perfor-mance without the need for external components. Drive requirement problems are minimized with an input ca-pacitance of only 5 pF.

Logic inputs and outputs are TTL.An overrange output signal is provided to indicate overflow conditions.Output data format is straight binary.Power dissipation is very low at only 1.1 watts with power supply voltages of +5.0 and-5.2 volts. The SPT7922 also provides a wide input voltage range of ±2.0 volts.

The SPT7922 is available in 32-lead ceramic sidebrazed DIP and 44-lead cerquad packages over the commercial temperature range. Consult the factory for availability of die, military temperature and /883 versions.