HI5813

Features:

• Conversion Time . . . . . . . . . . . . . . . . . . . . . . . . . . . 25ms
• Throughput Rate . . . . . . . . . . . . . . . . . . . . . . . .40 KSPS
• Built-In Track and Hold
• Single Supply Voltage . . . . . . . . . . . . . . . . . . . . . . +3.3V
• Maximum Power Consumption at 25oC. . . . . . . . 3.3mW


Application

• Remote Low Power Data Acquisition Systems
• Battery Operated Systems
• Pen Based PC Handheld Scanners
• DSP Modems
• General Purpose DSP Front End
• mP Controlled Measurement Systems
• PCMCIA Type II Compliant
• PC Based Industrial Controls/DAQ Systems


Pinout

Specifications

Supply Voltage
V_DD to V_SS . . . . . . . . . . . . . . . . . . . . (V_SS -0.5V) < V_DD < +6.5V
V_AA+ to V_AA-. . . . . . . . . . . . . . . . . . . (V_SS -0.5V) to (V_SS +6.5V)
V_AA+ to V_DD . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . ±0.3V
Analog and Reference Inputs
VIN, VREF+, VREF- . . . . . . . . . (V_SS -0.3V) < V_INA < (V_DD +0.3V)
Digital I/O Pins . . . . . . . . .. . . (V_SS -0.3V) < VI/O < (V_DD +0.3V)


Description

The HI5813 is a 3.3V, very low power, 12-bit, successive approximation analog-to-digital converter. It can operate from a single 3V to 6V supply and typically draws a maximum of 1.0mA (at 25) when operating at 3.3V. The HI5813 features a built-in track and hold. The conversion time is as low as 25ms with a 3.3V supply.

The twelve data outputs feature full high speed CMOS threestate bus driver capability, and are latched and held through a full conversion cycle. The output of HI5813 is user selectable: (i.e.) 12-bit , 8-bit (MSBs), and/or 4-bit (LSBs). A data ready flag and conversion start input complete the digital interface.