HI1175

Features:

• Resolution . . . . . . . . . . . . . . . . . . 8-Bit ±0.3 LSB (DNL)
• Maximum Sampling Frequency . . . . . . . . . . . 20 MSPS
• Low Power Consumption . . . .60mW (at 20 MSPS Typ)
(Reference Current Excluded)
• Built-In Sample and Hold Circuit
• Built-In Reference Voltage Self Bias Circuit
• Three-State TTL Compatible Output
• Single +5V Power Supply
• Low Input Capacitance . . . . . . . . . . . . . . . . . 11pF (Typ)
• Reference Impedance . . . . . . . . . . . . . . . . . . 300W (Typ)
• Evaluation Board Available (HI1175-EV)
• Low Cost
• Direct Replacement for the Sony CXD1175


Application

• Video Digitizing
• Image Scanners
• Multimedia
• PC Video Capture
• TV Set Top Boxes
• Personal Communication Systems (PCS)


Pinout




Specifications

Supply Voltage, VDD. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Reference Voltage, VRT, VRB . . . . . . . . . . . . . . . . . . . . . V_DD to V_SS
Analog Input Voltage, VIN. . . . . . . . . . . . . . . . . . . . . . . . V_DD to V_SS
Digital Input Voltage, CLK. . . . . . . . . . . . . . . . . . . . . . . . V_DD to V_SS
Digital Output Voltage, VOH, VOL . . . . . . . . . . . . . . . . . . V_DD to V_SS


Description

The HI1175 is an 8-bit, analog-to-digital converter built in a 1.4mm CMOS process. The low power, low differential gain and phase, high sampling rate, and single 5V supply make the product ideal for video and imaging applications.

The adoption of a 2-step flash architecture achieves low power consumption (60mW) at a maximum conversion speed of 20 MSPS (Min), 35 MSPS typical with only a 2.5 clock cycle data latency. It also features digital output enable/disable and a built in voltage reference. The HI1175 can be configured to use the internal reference or an external reference if higher precision is required.