AD10242PCB Analog Devices, AD10242PCB Datasheet

AD10242PCB

Manufacturer Part Number

AD10242PCB

Description

Dual Channel, 12-Bit, 40 MSPS MCM A/D Converter With Dc-coupled Analog Input Signal Conditioning (AD9042 Core ADC)

Manufacturer

Analog Devices

Datasheet

1.AD10242PCB.pdf (16 pages)

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PRODUCT DESCRIPTION

The AD10242 is a complete dual signal chain solution including

onboard amplifiers, references, ADCs, and output buffering pro-

viding unsurpassed total system performance. Each channel is

laser trimmed for gain and offset matching and provides channel-

to-channel crosstalk performance better than 80 dB. The AD10242

utilizes two each of the AD9632, OP279, and AD9042 in a cus-

tom MCM to gain space, performance, and cost advantages over

solutions previously available.

(LSB) D0A

UCOM

UNEG

UPOS

D1A

D2A

D3A

D4A

D5A

D6A

D7A

D8A

ENC

TIMING

OP279

ENC

OP279

OUTPUT BUFFERING

D9A

D10A D11A

REF

AD9632

AD9042

(MSB)

FUNCTIONAL BLOCK DIAGRAM

Dual, 12-Bit, 40 MSPS MCM A/D Converter

UNEG UCOM

with Analog Input Signal Conditioning

AD10242

UPOS

The AD10242 operates with ± 5.0 V for the analog signal condi-

tioning with a separate 5.0 V supply for the analog-to-digital

conversion. Each channel is completely independent, allowing

operation with independent encode or analog inputs. The AD10242

also offers the user a choice of analog input signal ranges to mini-

mize additional signal conditioning required for multiple functions

within a single system. The heart of the AD10242 is the AD9042,

which is designed specifically for applications requiring wide

dynamic range.

The AD10242 is manufactured by Analog Devices on our

MIL-PRF-38534 MCM line and is completely qualified. Units

are packaged in a custom cofired ceramic 68-lead gull wing

package and specified for operation from –55°C to +125°C.

Contact the factory for additional custom options including those

which allow the user to ac couple the ADC directly, bypassing

the front end amplifier section. Also see the AD9042 data sheet

for additional details on ADC performance.

PRODUCT HIGHLIGHTS

1. Guaranteed sample rate of 40 MSPS.

2. Dynamic performance specified over entire Nyquist band;

3. Low power dissipation: <2 W off ± 5.0 V supplies.

4. User defined input amplitude.

5. Packaged in 68-lead ceramic leaded chip carrier.

spurious signals @ 80 dBc for –1 dBFS input signals.

(LSB)

D0B

OP279

D1B

D2B

OP279

OUTPUT BUFFERING

AD9042

D3B

D4B

REF

AD9632

D5B

TIMING

D6B

AD10242

ENC

D11B (MSB)

D10B

D9B

D8B

D7B

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