adc12d800rfrb National Semiconductor Corporation, adc12d800rfrb Datasheet

adc12d800rfrb

Manufacturer Part Number

adc12d800rfrb

Description

12-bit, 1.6/1.0 Gsps Rf Sampling Adc

Manufacturer

National Semiconductor Corporation

Datasheet

1.ADC12D800RFRB.pdf (62 pages)

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12-Bit, 1.6/1.0 GSPS RF Sampling ADC

1.0 General Description

The 12-bit 1.6/1.0 GSPS ADC12D800/500RF is an RF-sam-

pling GSPS ADC that can directly sample input frequencies

up to and above 2.7 GHz. The ADC12D800/500RF augments

the very large Nyquist zone of National’s GSPS ADCs with

excellent noise and linearity performance at RF frequencies,

extending its usable range beyond the 7

The ADC12D800/500RF provides a flexible LVDS interface

which has multiple SPI programmable options to facilitate

board design and FPGA/ASIC data capture. The LVDS out-

puts are compatible with IEEE 1596.3-1996 and supports

programmable common mode voltage. The product is pack-

aged in a lead-free 292-ball thermally enhanced BGA pack-

age over the rated industrial temperature range of -40°C to

+85°C.

2.0 Features

■

5.0 Block Diagram

Excellent noise and linearity up to and above f

Configurable to either 1.6/1.0 GSPS interleaved or

800/500 MSPS dual ADC

New DESCLKIQ Mode for high bandwidth, high sampling

rate apps

Pin-compatible with ADC1xD1x00

AutoSync feature for multi-chip synchronization

Internally terminated, buffered, differential analog inputs

Interleaved timing automatic and manual skew adjust

Test patterns at output for system debug

Time Stamp feature to capture external trigger

Programmable gain, offset, and t

1:1 non-demuxed or 1:2 demuxed LVDS outputs

adjust feature

301286

Nyquist zone

ADC12D800/500RF

Simplified Block Diagram

= 2.7 GHz

3.0 Applications

■

4.0 Key Specifications

■

Interleaved 1.6/1.0 GSPS ADC

■

Dual 800/500 MSPS ADC, Fin = 498 MHz

■

3G/4G Wireless Basestation

— Receive Path

— DPD Path

Wideband Microwave Backhaul

RF Sampling Software Defined Radio

Military Communications

SIGINT

RADAR / LIDAR

Wideband Communications

Consumer RF

Test and Measurement

Resolution

IMD

Noise Floor

Noise Power Ratio

Power

ENOB

SNR

SFDR

Power per Channel

(Fin = 2.7GHz @ -13dBFS)

(Fin = 2.7GHz @ -16dBFS)

30128611

-152.2/-150.5 dBm/Hz (typ)

PRELIMINARY

50.5/50.8 dB (typ)

59.7/59.7 dB (typ)

2.50/2.02 W (typ)

1.25/1.01 W (typ)

71.2/72 dBc (typ)

-63/-61 dBc (typ)

-71/-69 dBc (typ)

9.5/9.6 Bits (typ)

www.national.com

July 1, 2011

12 Bits

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