3PA9280数据手册3PEAK中文资料规格书

描述 Description

The 3PA9280 is a monolithic, single-supply, 8-bit, 32-MSPS analog-to-digital converter with an on-chip sample-and-hold amplifier and a voltage reference. The 3PA9280 uses a multi-stage differential pipeline architecture at 32-MSPS data rates, and guarantees no missing codes over the full operating temperature range.

The input of the 3PA9280 is designed to ease the development of both imaging and communications systems. Users can select a variety of input ranges and offsets, and can drive the single-ended or differential input. The sample-and-hold amplifier (SHA) is equally suited for both multiplexed systems that switch full-scale voltage levels in successive channels and sampling single-channel inputs at frequencies up to and beyond the Nyquist rate. AC-coupled input signals can be shifted to a predetermined level, with an onboard clamp circuit. The dynamic performance is excellent.

The 3PA9280 has an onboard programmable reference. An external reference can also be chosen to suit the DC accuracy and temperature drift requirements of the application.

A single clock input is used to control all internal conversion cycles. The digital output data is presented in straight binary output format. An out-of-range signal (OTR) indicates an overflow condition which can be used with the most significant bit to determine a low or high overflow.

The 3PA9280 operates with a supply ranging from +2.7 V to +5.5 V, suited for low-power operation in high-speed applications. The 3PA9280 is specified over the industrial temperature range from –40°C to +85°C.

特性 Features

• CMOS 8 Bit 32 MSPS Sampling A/D Converter

• Pin Compatible with AD9280

• Power Dissipation: 85 mW (3 V Supply)

• Operation Between +2.7 V and +5.5V Supply

• Differential Nonlinearity: 0.2 LSB

• Power Down (Sleep) Mode

• Three State Outputs

• Out of Range Indicator

• Built In Clamp Function (DC Restore)

• Adjustable On Chip Voltage Reference

• IF Under sampling to 135 MH