The ADS4249 is a member of the ADS42xx ultralow-power family of dual-channel, 12-bit and 14-bit analog-to-digital converters (ADCs). Innovative design techniques are used to achieve high dynamic performance, while consuming extremely low power with a 1.8-V supply. This topology makes the ADS4249 well-suited for multi-carrier, wide-bandwidth communications applications.
The ADS4249 has gain options that can be used to improve SFDR performance at lower full-scale input ranges. This device also includes a dc offset correction loop that can be used to cancel the ADC offset. Both DDR LVDS and parallel CMOS digital output interfaces are available in a compact QFN-64 PowerPAD package.
The device includes internal references while the traditional reference pins and associated decoupling capacitors have been eliminated. The ADS4249 is specified over the industrial temperature range (40°C to 85°C).
Resolution (Bits) |
Sample Rate (Max) (MSPS) |
# 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 |
SINAD (dB) |
Architecture |
DNL (Typ) (+/-LSB) |
INL (Typ) (+/-LSB) |
Reference Mode |
ADS4249 | ADS4222 | ADS4225 | ADS4226 | ADS4229 | ADS4242 | ADS4245 | ADS4246 |
---|---|---|---|---|---|---|---|
14 | 12 | 12 | 12 | 12 | 14 | 14 | 14 |
250 | 65 | 125 | 160 | 250 | 65 | 125 | 160 |
2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
72.8 | 70.9 | 70.8 | 70.5 | 70.5 | 73.6 | 73.4 | 72.8 |
11.7 | 11.5 | 11.5 | 11.4 | 11.3 | 11.9 | 11.9 | 11.8 |
80 | 91 | 89 | 87 | 80 | 92 | 89 | 87 |
470 | 183 | 277 | 332 | 470 | 183 | 277 | 332 |
2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS | DDR LVDS Parallel CMOS |
-40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
600 | 600 | 600 | 600 | 600 | 600 | 600 | 600 |
No | No | No | No | No | No | No | No |
VQFN | VQFN | VQFN | VQFN | VQFN | VQFN | VQFN | VQFN |
64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) | 64VQFN: 81 mm2: 9 x 9(VQFN) |
Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog | Catalog |
72 | 70.8 | 70.7 | 70.4 | 70 | 73.5 | 73.2 | 72.6 |
Pipeline | Pipeline | Pipeline | Pipeline | Pipeline | Pipeline | Pipeline | Pipeline |
0.5 | 0.5 | 0.13 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 |
2 | 2 | 0.5 | 2 | 1.8 | 2 | 2 | 2 |
Int | Int | Int | Int | Int | Int | Int | Int |
Order Now | Order Now | Order Now | Order Now | Order Now | Order Now | Order Now | Order Now |