1 Features

• Space screening and radiation performance

– QML-V screening and reliability

– Total ionizing dose (TID): 300 krad (Si)

– Single event latchup (SEL): 75 MeV-cm2/mg

• Ambient temperature range: −55°C to 105°C

• Dual channel ADC

• 18-bit 65MSPS

• Noise Floor: -160dBFS/Hz

• Low power and optimized power scaling:

50mW/ch (10MSPS) to 94mW/ch (65MSPS)

• Latency: 1-2 clock cycles

• 18-bit, no missing codes

• INL: ±9, DNL: ±0.7 LSB (typical)

• Reference: external or internal

• Input bandwidth: 140MHz (–3dB)

• On-chip digital filter (optional)

– Decimation by 2, 4, 8, 16, 32

– 32-bit NCO

• Serial LVDS digital interface (2-, 1- and 1/2-wire)

• Spectral performance (fIN = 5MHz):

– SNR: 83.5dBFS

– SFDR: 87dBc HD2, HD3

– SFDR: 99dBFS worst spur

2 Applications

• Satellite optical communications payload

• Satellite imaging payloads

• Satellite communication payloads

• Satellite RADAR and LIDAR payloads.

3 Description

The ADC3683-SP is a low noise, ultra-low power 18-

bit 65MSPS high-speed dual channel ADC. Designed

for lowest noise performance, the device delivers a

noise spectral density of −160dBFS/Hz combined with

excellent linearity and dynamic range. The ADC3683-

SP offers DC precision together with IF sampling

support making it designed for a wide range of

applications. High-speed control loops benefit from

the short latency as low as only 1 clock cycle. The

ADC consumes only 94mW/ch at 65Msps and the

power consumption scales well with lower sampling

rates.

The device uses a serial LVDS (SLVDS) interface

to output the data which minimizes the number of

digital interconnects. The device supports two-lane,

one-lane and half-lane options. The device is pin-topin

compatible with the 14-bit, 125MSPS ADC3664-

SP. The device comes in a 64-pin CFP package

(10.9mm x 10.9mm), and supports a temperature

range from −55°C to +105°C.