CA3310A

Features:

• CMOS Low Power (Typ). . . . . . . . . . . . . . . . . . . . .15mW
• Single Supply Voltage . . . . . . . . . . . . . . . . . . . . 3V to 6V
• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 13s
• Built-In Track and Hold
• Rail-to-Rail Input Range
• Latched Three-state Output Drivers
• Microprocessor-Compatible


Application

• Fast, No-Droop, Sample and Hold
• Voice Grade Digital Audio
• DSP Modems
• Remote Low Power Data Acquisition Systems
• P Controlled Systems


Pinout




Specifications

Digital Supply Voltage V_DD. . . . . . . . . . . .  . .V_SS -0.5V to V_SS +7V
Analog Supply Voltage (V_AA+) . . . . . . . .  . .  . . . . . . . .V_DD ±0.5V
Any Other Terminal . . . . . . . . . . . . . . . . .V_SS -0.5V to V_DD + 0.5V
DC Input Current or Output (Protection Diode)
Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20mA
DC Output Drain Current, per Output . . . . . . . . . . . . . . . ±35mA
Total DC Supply or Ground Current . . . . . . . . . . . . . . . . . ±70mA


Description

The Intersil CA3310 is a fast, low power, 10-bit successive approximation analog-to-digital converter, with microprocessorcompatible outputs. It uses only a single 3V to 6V supply and typically draws just 3mA when operating at 5V. It can accept full rail-to-rail input signals, and features a built-in track and hold.
CA3310A track and hold will follow high bandwidth input signals, as it has only a 100ns (typical) input time constant. The ten data outputs feature full high-speed CMOS threestate bus driver capability, and are latched and held through a full conversion cycle. Separate 8 MSB and 2 LSB enables, a data ready flag, and conversion start and ready reset inputs complete the microprocessor interface.
An internal, adjustable clock is provided and is available as an output. CA3310A clock may also be driven from an external source.