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AD9269 16-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter

The AD9269 is a monolithic, dual-channel, 1.8 V supply, 16-bit, 20/40/65/80 MSPS analog-to-digital converter (ADC). It features a high performance sample-and-hold circuit and on-chip voltage reference. The product uses multistage differential pipeline architecture with output error correction logic to provide 16-bit accuracy at 80 MSPS data rates and to guarantee no missing codes over the full operating temperature range. The AD9269 incorporates an optional integrated dc correction and quadrature error correction block (QEC) that corrects for dc offset, gain, and phase mismatch between the two channels. This functional block can be very beneficial to complex signal processing applications such as direct conversion receivers. Applications

The ADC also contains several features designed to maximize flexibility and minimize system cost, such as programmable clock and data alignment and programmable digital test pattern generation. The available digital test patterns include built-in deterministic and pseudorandom patterns, along with custom user-defined test patterns entered via the serial port interface (SPI).

A differential clock input controls all internal conversion cycles. An optional duty cycle stabilizer (DCS) compensates for wide variations in the clock duty cycle while maintaining excellent overall ADC performance. The digital output data is presented in offset binary, gray code, or twos complement format. A data output clock (DCO) is pro-vided for each ADC channel to ensure proper latch timing with receiving logic. Both 1.8 V and 3.3 V CMOS levels are supported, and output data can be multiplexed onto a single output bus.

The AD9269 is available in a 64-lead RoHS-compliant LFCSP and is specified over the industrial temperature range (−40°C to +85°C).

Features and Benefits

1.8 V analog supply operation

1.8 V to 3.3 V output supply

Integrated quadrature error correction (QEC)

SNR

77.6 dBFS at 9.7 MHz input

71 dBFS at 200 MHz input

SFDR

93 dBc at 9.7 MHz input

80 dBc at 200 MHz input

Low power

44 mW per channel at 20 MSPS

100 mW per channel at 80 MSPS

Differential input with 700 MHz bandwidth

On-chip voltage reference and sample-and-hold circuit

2V p-p differential analog input

DNL = −0.5/+1.1 LSB

Serial port control options

Offset binary, gray code, or twos complement data format

Optional clock duty cycle stabilizer (DCS)

See data sheet for additional features

Analog to Digital Converters

A/D Converters

High Speed ADC > 10MSPS

AD9269 IBIS Model

AD9269BCPZ (All Speed Grades) .IBS

Data Sheets

Document note

AD9269: 16-Bit, 20/40/65/80 MSPS, 1.8 V Dual Analog-to-Digital Converter Data Sheet (Rev. A) PDF 1.2 M

Application Notes

Document note

AN-878: High Speed ADC SPI Control Software (Rev. A) PDF 585 kB

AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0) PDF 203 kB

AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0) PDF 363 kB

AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. B) PDF 401 kB

AN-586: LVDS Outputs for High Speed A/D Converters (Rev. 0) PDF 207 kB

AN-1142: Techniques for High Speed ADC PCB Layout (Rev. 0) PDF 392 kB

AN-807: Multicarrier WCDMA Feasibility (Rev. 0) PDF 969 kB

AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0) PDF 1535 kB

AN-812: MicroController-Based Serial Port Interface (SPI) Boot Circuit (Rev. 0)

Software Download (zip, 21,702,560 bytes) PDF 441 kB

User Guides

Document note

UG-003: Evaluating the AD9650/AD9268/AD9258/AD9251/AD9231/AD9204 Analog-to-Digital Converters PDF 2699 kB

Order Information

Part Number Package Packing Qty Temp Range Price 100-499 Price 1000+ RoHS

AD9269BCPZ-20 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) OTH 260 -40 to 85C 57.82 49 Y

AD9269BCPZ-40 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) OTH 260 -40 to 85C 70.21 59.5 Y

AD9269BCPZ-65 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) OTH 260 -40 to 85C 86.92 73.66 Y

AD9269BCPZRL7-20 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) REEL 750 -40 to 85C 57.82 49 Y

AD9269BCPZRL7-40 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) REEL 750 -40 to 85C 70.21 59.5 Y

AD9269BCPZRL7-65 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) REEL 750 -40 to 85C 86.92 73.66 Y

AD9269BCPZRL7-80 Production 64 ld LFCSP (9x9mm, 6.20mm exposed pad) REEL 750 -40 to 85C 99.23 84.09 Y

Evaluation Boards

Part Number Description Price RoHS

AD9269-20EBZ Evaluation Board 200 Y

AD9269-40EBZ Evaluation Board 200 Y

AD9269-65EBZ Evaluation Board 200 Y

AD9269-80EBZ Evaluation Board 200 Y

Reference Materials

Product Selection Guide：RF Source Booklet

Solutions Bulletins & Brochures：Analog-to-Digital Converter and Drivers ICs Solutions Bulletin, Volume 10,...

Technical Articles：MS-2210: Designing Power Supplies for High Speed ADC

Datasheet

AD9269: 16-Bit, 20/40/65/80 MSPS, 1.8 V Dual Analog-to-Digital Converter Data Sheet (Rev. A) ad9269

AD9269：16位、20/40/65/80 MSPS、1.8 V双通道模数转换器 (Rev. 0) ad9269

Other

AN-935: Designing an ADC Transformer-Coupled Front End (Rev. 0) ad9220

AN-878: High Speed ADC SPI Control Software (Rev. A) ad6655

AN-827: A Resonant Approach to Interfacing Amplifiers to Switched-Capacitor ADCs (Rev. 0) ad6655

AN-808: Multicarrier CDMA2000 Feasibility (Rev. 0) ad9863

AN-807: Multicarrier WCDMA Feasibility (Rev. 0) ad6655

AN-586: LVDS Outputs for High Speed A/D Converters (Rev. 0) ad6642

AD9269BCPZ (All Speed Grades) ad9269

AN-1142: Techniques for High Speed ADC PCB Layout (Rev. 0) ad6655

AN-1142: 高速ADC PCB布局布线技巧 (Rev. 0) ad6655

AN-586: 高速模数转换器的LVDS数据输出[中文版] (Rev. 0) ad6642

AN-742: Frequency Domain Response of Switched-Capacitor ADCs (Rev. B) ad7476

AN-807: 多载波WCDMA的可行性 (Rev. 0) adf4106

AN-808: CDMA2000多载波系统可行性研究 (Rev. 0) adl5330

AN-812: MicroController-Based Serial Port Interface (SPI) Boot Circuit (Rev. 0) ad6655

AN-812: 基于微控制器的串行端口接口(SPI®)启动电路 (Rev. 0) adg3304

AN-878: 高速ADC SPI控制软件[中文版] (Rev. A) ad6655

AN-935: ADC变压器耦合前端设计[中文版] (Rev. 0) ad6655

AN-827: 放大器与开关电容ADC接口的匹配方法[中文版] (Rev. 0) ad8351

MS-2210：高速ADC的电源设计 ad9861

RF Source Booklet adf9010

Analog-to-Digital Converter and Drivers ICs Solutions Bulletin, Volume 10,... ad7986

Software Download (zip, 21,702,560 bytes) ad6655

UG-003: Evaluating the AD9650/AD9268/AD9258/AD9251/AD9231/AD9204 Analog-to-Digital Converters ad9204

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