HMXADC9225
Radiation Hardened 12-Bit, 20 MSPS
Monolithic A/D Converter
Features
Monolithic 12-Bit, 20 MSPS
A/D Converter
Rad Hard: 500k Rad(Si) Total Dose
Single +5 V Analog Supply
Complete On-Chip S/H Amplifier
Straight Binary Output Data
5V or 3.3V Digital and I/O Supply
No Missing Codes Guaranteed
Differential Nonlinearity Error: 0.4 LSB
Signal-to-Noise and Distortion
Ratio: 69.6 dB
Spurious-Free Dynamic Range: –71 dB
28-Lead Ceramic Flat Pack
Mixed Signal Rad Hard Process
The HMXADC9225 is fabricated on
space qualified SOI CMOS process.
High-speed precision analog circuits
are now combined with high-density
logic circuits that can reliably withstand
the harshest environments.
Space Qualified Package
The HMXADC9225 is packaged in
a 28 lead ceramic flat pack.
The HMXADC9225 is a radiation hardened monolithic, 12-bit, 20 MSPS, analog-
Low Power
to-digital converter with an on-chip, high performance sample-and-hold amplifier.
The HMXADC9225 uses a multistage differential pipelined architecture with
output error correction logic to provide 12-bit resolution at 20 MSPS data rates,
and guarantees no missing codes over the full operating temperature range.
The HMXADC9225 at 335 mW
consumes a fraction of the power
of presently available in existing
monolithic solutions.
Output Enable (OE)
The HMXADC9225 is fabricated on a radiation hardened SOI-IV Silicon On Insulator (SOI)
process with very low power consumption.
The OE input allows user to put the
three-state digital outputs into a high
impedance mode.
The input of the HMXADC9225 allows for easy interfacing to space and military imaging,
sensor, and communications systems. With a truly differential input structure, the user can
select a variety of input ranges and offsets including single-ended applications. The dynamic
performance is excellent.
Dual Power Supply Capability
The HMXADC9225 uses a single
+5 V power supply simplifying system
power supply design. It also features
a separate digital I/O power supply
line to accommodate 3.3V and
5V logic families.
The sample-and-hold amplifier (SHA) is well suited for both multiplexed systems that switch
full-scale voltage levels in successive channels and sampling single-channel inputs at
frequencies up to and well beyond the Nyquist rate.
On-Chip Sample-and-Hold (SHA)
The versatile SHA input can be
configured for either single-ended
or differential inputs.
A single clock input is used to control all internal conversion cycles. The digital output data is
presented in straight binary output format.