Dual-, Differential, Low-Pass Filter

μModule with Gain and ADC Driver

Data Sheet

ADAQ8088

Rev. 0

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FEATURES

Dual-channel differential input/output

Integrated 36 MHz, 8-pole low-pass filter

Low power dissipation

213 mW typical at 3 V supply

2 integrated fully differential ADC drivers

30 dB maximum differential gain

Adjustable down to 14 dB

Gain error: ±0.2 dB

Gain drift: 0.01 dB/

C typical

2.7 V to 3.3 V supply range

84-ball, 6 mm × 12 mm CSP_BGA package with 0.8 mm ball

pitch

Operating temperature range: −40°C to +85°C

Built-in supply decoupling capacitors

APPLICATIONS

IF broadband demodulators

Medical imaging (CW ultrasound beam forming)

Phased array systems

Radar

Adaptive antennas

Communications receivers

Radio Links

Wireless local loop

IF broadband demodulators

RF instrumentation

Satellite modems

Baseband data acquisition system

Multichannel digitizer instruments

Ultrasonic non-destructive test

FUNCTIONAL BLOCK DIAGRAM

VCMA

RA12

RA11

RB11

RB11

VCMB

VOUTAP

RA21

VCC

RA22

VOUTAN

VINAP

VINAN

VOUTBP

VOUTBN

VINBP

VINBN

RB21

GND

RB22

BUILT-IN SUPPLY

DECOUPLING

CAPACITOR

ADAQ8088

Figure 1.

GENERAL DESCRIPTION

The ADAQ8088 is a dual-channel analog system in package

(SIP) that integrates three common signal processing and

conditioning blocks to support a variety of demodulator

applications and data acquisition applications. The device

integrates all active and passive components to form a complete

signal chain between the output of an I/Q demodulator and the

input to an analog-to-digital converter (ADC). The device also

forms the complete signal chain between a transducer output

and the input to an ADC in baseband data acquisition systems.

No external components are required for proper functionality.

Each channel contains a preamplifier, followed by an 8-pole,

low-pass filter with a 36 MHz, 3 dB frequency and a differential

ADC driver optimized to drive 12-bit to 14-bit pipeline ADCs

with speeds up to 150 MSPS. Encapsulated in a 6 mm × 12 mm

CSP_BGA package, the ADAQ8088 minimizes space

requirements in high density multichannel systems.

The ADAQ8088 operating temperature range is from −40°C

to +85°C.