New Products for 模数转换器（ADC） | Analog Devices

AD7944, 14-Bit, 2.5 MSPS, PulSAR 15.5 mW ADC in LFCSP

Fri, 13 Nov 2009 06:36:41 GMT

The AD7944 is a 14-bit, 2.5 MSPS successive approximation analog-to-digital converter (SAR ADC). It contains a low power, high speed, 14-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, the AD7944 samples an analog input, IN+, between 0 V and V_REF with respect

AD7194, 8-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

Wed, 04 Nov 2009 14:32:46 GMT

The AD7194 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC. The device can be configured to have eight differential inputs or sixteen pseudo differential inputs. The

AD9231, 12-Bit, 20/40/65/80 MSPS, 1.8V Dual Analog-to-Digital Converter

Mon, 02 Nov 2009 17:05:19 GMT

The AD9231 is a monolithic, dual-channel, 1.8 V supply, 12-bit, 20 MSPS/40 MSPS/65 MSPS/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 12-bit accuracy at 80 MSPS data rates and to guarantee no missing

AD7985, 16-Bit, 2.5 MSPS PulSAR 11 mW ADC in QFN

Wed, 23 Sep 2009 12:26:07 GMT

The AD7985 is a 16-bit, 2.5 MSPS successive approximation analog-to-digital converter (SAR ADC). It contains a low power, high speed, 16-bit sampling ADC, an internal conversion clock, an internal reference (and buffer), error correction circuits, and a versatile serial interface port. On the rising edge of CNV, the AD7985 samples an analog input, IN+, between 0 V and REF with respect to a ground

AD9277, 八通道LNA/VGA/AAF/14位ADC与CW I/Q解调器

Tue, 04 Aug 2009 20:26:02 GMT

AD9277针对低成本、低功耗、小尺寸及易于使用的应用而设计。它内置八通道的可变增益放大器(VGA)、低噪声前置放大器(LNA)、抗混叠滤波器(AAF)、14位10 MSPS至50 MSPS模数转换器(ADC)以及具有可编程相位旋转的I/Q解调器。

每个通道均具有42 dB的可变增益范围、完全差分信号路径、有源输入前置放大器终端、最大52 dB的增益以及转换速率高达50 MSPS的ADC。通道专门针对动态范围与低功耗而优化，适合要求小封装尺寸的应用。

LNA具有单端转差分增益，可以通过SPI进行选择。增益为21.3 dB时，LNA输入噪声典型值为0.75 nV/√Hz；在最大增益下，所有通道的折合到输入端噪声为0.85 nV/√Hz。假设噪声带宽为15 MHz且LNA增益为21.3 dB，则输入信噪比(SNR)约为92 dB。在CW多普勒模式下，各LNA输出

AD9251, 14-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter

Mon, 03 Aug 2009 19:26:41 GMT

The AD9251 is a monolithic, dual-channel, 1.8 V supply, 14-bit, 20 MSPS/40 MSPS/65 MSPS/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 14-bit accuracy at 80 MSPS data rates and to guarantee no missing

AD7193, 4-Channel, 4.8 kHz, Ultralow Noise, 24-Bit Sigma-Delta ADC with PGA

Fri, 31 Jul 2009 04:01:24 GMT

The AD7193 is a low noise, complete analog front end for high precision measurement applications. It contains a low noise, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The on-chip low noise gain stage means that signals of small amplitude can interface directly to the ADC.

The device can be configured to have four differential inputs or eight pseudo differential inputs. The

AD9267, 10 MHz Bandwidth, 640 MSPS Dual Continuous Time Sigma-Delta Modulator

Fri, 31 Jul 2009 04:00:00 GMT

The AD9267 is a dual continuous time (CT) sigma-delta (Σ-Δ) modulator with -88 dBc of dynamic range over 10 MHz real or 20 MHz complex bandwidth. The combination of high dynamic range, wide bandwidth, and characteristics unique to the continuous time Σ-Δ modulator architecture makes the AD9267 an ideal solution for wireless communication systems.

The AD9267 has a resistive input impedance