ADC3643
ADC3643
www.ti.com
SBAS886 – OCTOBER 2020
SBAS886 – OCTOBER 2020
ADC364x 14-bit, 10-MSPS to 65-MSPS, Low-Noise, Low Power Dual Channel ADC
1 Features
3 Description
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Dual channel
14-bit 10/25/65 MSPS ADC
Noise floor: –155 dBFS/Hz
Ultra-low power with optimized power scaling:
29 mW/ch (10 MSPS) to 72 mW/ch (65 MSPS)
Latency: 1 clock cycle
The ADC364x family of devices are low-noise, ultra-
low power, 14-bit, 10-MSPS to 65-MSPS dual-
channel, high-speed analog-to-digital converters
(ADCs). Designed for low power consumption, these
devices deliver a noise spectral density of –155
dBFS/Hz, combined with excellent linearity and
dynamic range. The ADC364x offers very good dc
precision, together with IF sampling support, which
make the device an excellent choice for a wide range
of applications. High-speed control loops benefit from
the short latency of only one clock cycle. The ADC
consumes only 72 mW/ch at 65 MSPS, and power
consumption scales well with lower sampling rates.
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14-Bit, no missing codes
INL: ±0.6 LSB; DNL: ±0.2 LSB
Reference: external or internal
Industrial temperature range: –40°C to +105°C
On-chip digital filter (optional)
– Decimation by 2, 4, 8, 16, 32
– 32-bit NCO
DDR and Serial CMOS interface
Small footprint: 40-VQFN (5 mm × 5 mm) package
Single 1.8-V supply
Spectral performance (fIN = 5 MHz):
– SNR: 79.0 dBFS
– SFDR: 93-dBc HD2, HD3
– SFDR: 101-dBFS worst spur
Spectral performance (fIN = 64 MHz):
– SNR: 74.0 dBFS
The ADC364x use a DDR or serial CMOS interface to
output the data offering lowest power digital interface,
together with flexibility to minimize the number of
digital interconnects. These devices are a pin-to-pin
compatible family with different speed grades. These
devices support the extended industrial temperature
range of –40 to +105⁰C.
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Device Information
PART NUMBER
ADC364x
PACKAGE(1)
BODY SIZE (NOM)
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VQFN (40)
5.00 × 5.00 mm
– SFDR: 84-dBc HD2, HD3
– SFDR: 90-dBFS worst spur
(1) For all available packages, see the package option
addendum at the end of the data sheet.
Device Comparison
2 Applications
PART NUMBER
ADC3643
RESOLUTION
SAMPLING RATE
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High-speed data acquisition
Industrial monitoring
Thermal imaging
Imaging and sonar
Software defined radio
Power quality
Communications infrastructure
High-speed control loops
Instrumentation
Smart grids
Spectroscopy
Radar
Source measurement unit (SMU)
GPS receiver
Sonar
14 BIT
65 MSPS
ADC3642(1)
ADC3641(1)
14 BIT
14 BIT
25 MSPS
10 MSPS
(1) Product Preview
REFBUF
VREF
1.2V REF
Digital Downconverter
NCO
Crosspoint
Switch
ADC
14bit
N
AIN
DCLK
0.95V
VCM
Dig I/F
CMOS
NCO
DA0..6
DB0..6
ADC
14bit
N
BIN
CLK
Substation automation
ADC364x Block Diagram
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. UNLESS OTHERWISE NOTED, this document contains PRODUCTION
Copyright © 2020 Texas Instruments Incorporated
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