AD9225ARSZRL

Product Summary

The AD9225ARSZRL is a monolithic, single supply, 12-bit, 25 MSPS, analog-to-digital converter with an on-chip, high performance sample-and-hold amplifier and voltage reference. The AD9225ARSZRL uses a multistage differential pipelined architecture with output error correction logic to provide 12-bit accuracy at 25 MSPS data rates, and guarantees no missing codes over the full operating temperature range. The AD9225ARSZRL combines a low cost high speed CMOS process and a novel architecture to achieve the resolution and speed of existing bipolar implementations at a fraction of the power consumption and cost. The input of the AD9225ARSZRL allows for easy interfacing to both imaging 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. The sample-and-hold (SHA) amplifier 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. The AD9225ARSZRL wideband input combined with the power and cost savings over previously available monolithics, is suitable for applications in communications, imaging and medical ultrasound. The AD9225ARSZRL has an onboard programmable reference. An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application.

Parametrics

AD9225ARSZRL absolute maximum ratings: (1)AVDD AVSS: –0.3 +6.5 V; (2)DRVDD DRVSS: –0.3 +6.5 V; (3)AVSS DRVSS: –0.3 +0.3 V; (4)AVDD DRVDD: –6.5 +6.5 V; (5)REFCOM AVSS: –0.3 +0.3 V; (6)CLK AVSS –0.3: AVDD + 0.3 V; (7)Digital Outputs DRVSS–0.3: DRVDD + 0.3 V; (8)VINA, VINB AVSS: –0.3 AVDD + 0.3 V; (9)VREF AVSS –0.3: AVDD+ 0.3 V; (10)SENSE AVSS –0.3: AVDD+ 0.3 V; (11)CAPB, CAPT AVSS –0.3: AVDD+ 0.3 V; (12)Junction Temperature: +150°C; (13)Storage Temperature: –65 +150°C; (14)Lead Temperature (10 sec): +300 °C.

Features

AD9225ARSZRL features: (1)Monolithic 12-Bit, 25 MSPS A/D Converter; (2)Low Power Dissipation: 280 mW; (3)Single +5 V Supply; (4)No Missing Codes Guaranteed; (5)Differential Nonlinearity Error: ±0.4 LSB; (6)Complete On-Chip Sample-and-Hold Amplifier and; (7)Voltage Reference; (8)Signal-to-Noise and Distortion Ratio: 71 dB; (9)Spurious-Free Dynamic Range: -85 dB; (10)Out-of-Range Indicator; (11)Straight Binary Output Data; (12)28-Lead SOIC; (13)28-Lead SSOP; (14)Compatible with 3 V Logic.

Diagrams