12-Bit, 10.25 GSPS, JESD204B, RF Analog-to-Digital Converter

The AD9213S-CSH is a single, 12-bit, 10.25 GSPS, RF analog-to-digital converter (ADC) with a 6.5 GHz input bandwidth. The AD9213S-CSH supports high dynamic range frequency and time domain applications requiring wide instantaneous bandwidth and low conversion error rates (CERs). The AD9213S-CSH features a 16-lane JESD204B interface to support maximum bandwidth capability.

The AD9213S-CSH achieves dynamic range and linearity performance while consuming <4.6 W typical. The device is based on an interleaved pipeline architecture and features a proprietary calibration and randomization technique that suppresses interleaving spurious artifacts into its noise floor. The linearity performance of the AD9213S-CSH is preserved by a combination of on-chip dithering and calibration, which results in excellent spurious-free performance over a wide range of input signal conditions.

Applications that require less instantaneous bandwidth can benefit from the on-chip, digital signal processing (DSP) capability of the AD9213S-CSH that reduces the output data rate along with the number of JESD204B lanes required to support the device. The DSP path includes a digital downconverter (DDC) with a 48-bit, numerically controlled oscillator (NCO), followed by an in-phase/ quadrature (I/Q) digital decimator stage that allows selectable decimation rates that are factors of two or three. For fast frequency hopping applications, the AD9213S-CSH NCO supports up to 16 profile settings with a separate trigger input, allowing wide surveillance frequency coverage at a reduced JESD204B lane count.

The AD9213S-CSH supports sample accurate multichip synchronization that includes synchronization of the NCOs. The AD9213S-CSH is offered in a 12 mm × 12 mm, 192-ball ball grid array (BGA) package and is specified over a junction temperature range of −20°C to +115°C. Additional application and technical information can be found in the Commercial Space Products Program brochure and the AD9213 data sheet.

APPLICATIONS

* Low and medium earth orbit (LEO/MEO) satellites

* Geosynchronous earth orbit (GEO) satellites

* Avionics

* Ultrawideband satellite receiver

* Low power dissipation: <4.6 W typical at 10 GSPS

* Integrated input buffer (6.5 GHz input bandwidth)

* 1.4 V p-p full-scale analog input with RIN = 50 Ω

* Overvoltage protection

* High instantaneous dynamic range

* NSD

* −155.1 dBFS/Hz at 10 GSPS with −9 dBFS, 170 MHz input

* −153 dBFS/Hz at 10 GSPS with −1 dBFS, 170 MHz input

* SFDR: 70 dBFS at 10 GSPS with −1 dBFS, 1000 MHz input

* SFDR excluding H2 and H3 (worst other spur): −89 dBFS at 10 GSPS with −1 dBFS, 1000 MHz input

* 16-lane JESD204B output (up to 16 Gbps line rate)

* Multichip synchronization capable with 1 sample accuracy

* DDC NCO synchronization included

* Integrated DDC

* Selectable decimation factors

* 16 profile settings for fast frequency hopping

* Fast overrange detection for efficient AGC

* On-chip temperature sensor

* On-chip negative voltage generators

* Low CER: <1 × 10−16

* 12 mm × 12 mm, 192-ball BGA-ED package