The ADS424x and ADS422x family of devices are low-speed variants of the ADS42xx ultralow-power family of dual-channel, 14-bit/12-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high-dynamic performance, while consuming extremely low power with 1.8-V supply. This topology makes the ADS424x/422x well-suited for multi-carrier, wide-bandwidth communications applications.
The ADS424x/422x have gain options that can be used to improve SFDR performance at lower full-scale input ranges. These devices include a dc offset correction loop that can be used to cancel the ADC offset. Both DDR (double data rate) LVDS and parallel CMOS digital output interfaces are available in a compact VQFN-64 package.
The devices include internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. All devices are specified over the industrial temperature range (–40°C to 85°C).
Part number | オーダー・オプション | Sample rate (Max) (MSPS) | Features | Resolution (Bits) | Number of input channels | SNR (dB) | ENOB (Bits) | SFDR (dB) | Power consumption (Typ) (mW) | Input range (Vp-p) | Interface | Operating temperature range (C) | Analog input BW (MHz) | Input buffer | Package Group | Package size: mm2:W x L (PKG) | Rating | Architecture |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
ADS4225 |
|
125 | Low Power | 12 | 2 | 70.9 | 11.3 | 91 | 277 | 2 |
DDR LVDS
Parallel CMOS |
-40 to 85 | 600 | No | VQFN | 64 | 64VQFN: 81 mm2: 9 x 9 (VQFN | 64) | Catalog | Pipeline |
ADS4222 |
|
65 | Low Power | 12 | 2 | 70.9 | 11.3 | 91 | 183 | 2 |
DDR LVDS
Parallel CMOS |
-40 to 85 | 600 | No | VQFN | 64 | 64VQFN: 81 mm2: 9 x 9 (VQFN | 64) | Catalog | Pipeline |
ADS4226 |
|
160 | Low Power | 12 | 2 | 70.9 | 11.3 | 91 | 332 | 2 |
DDR LVDS
Parallel CMOS |
-40 to 85 | 600 | No | VQFN | 64 | 64VQFN: 81 mm2: 9 x 9 (VQFN | 64) | Catalog | Pipeline |
ADS4229 |
|
250 | Low Power | 12 | 2 | 70.5 | 11.15 | 80.8 | 470 | 2 |
DDR LVDS
Parallel CMOS |
-40 to 85 | 600 | No | VQFN | 64 | 64VQFN: 81 mm2: 9 x 9 (VQFN | 64) | Catalog | Pipeline |
ADS4242 |
|
65 | Low Power | 14 | 2 | 73.6 | 11.5 | 91 | 183 | 2 |
DDR LVDS
Parallel CMOS |
-40 to 85 | 600 | No |