AD605ARZ

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Series Information for AD605ARZ - Analog Devices

Features

  • feature
    2 independent linear-in-dB channels Input noise at maximum gain: 1.8 nV/u221aHz, 2.7 pA/u221aHz Bandwidth: 40 MHz (u22123 dB) Differential input Absolute gain range programmable u221214 dB to +34 dB (FBK shorted to OUT) through 0 dB to 48 dB (FBK open) Variable gain scaling: 20 dB/V through 40 dB/V Stable gain with temperature and supply variations Single-ended unipolar gain control Output common mode independently set Power shutdown at lower end of gain control Single 5 V supply Low power: 90 mW/channel Drives ADCs directly

Description

VGA DUAL 5V 40MHZ 16SOIC

The AD605 is a low noise, accurate, dual-channel, linear-in-dB variable gain amplifier (VGA), optimized for any application requiring high performance, wide bandwidth variable gain control. Operating from a single 5 V supply, the AD605 provides differential inputs and unipolar gain control for ease of use. Added flexibility is achieved with a user-determined gain range and an external reference input that provide user-determined gain scaling (dB/V). The high performance linear-in-dB response of the AD605 is achieved with the differential input, single-supply, exponential amplifier (DSX-AMP) architecture. Each of the DSX-AMPs comprises a variable attenuator of 0 dB to −48.4 dB followed by a high speed, fixed-gain amplifier. The attenuator is based on a 7-stage R-1.5R ladder network. The attenuation between tap points is 6.908 dB, and 48.360 dB for the entire ladder network. The DSX-AMP architecture results in 1.8 nV/√Hz input noise spectral density and accepts a ±2.0 V input signal when VOCM is biased at VP/2. Each independent channel of the AD605 provides a gain range of 48 dB that can be optimized for the application. Gain ranges between −14 dB to +34 dB and 0 dB to +48 dB can be selected by a single resistor between Pin FBK and Pin OUT. The lower and upper gain ranges are determined by shorting Pin FBK to Pin OUT or leaving Pin FBK unconnected, respectively. The two channels of the AD605 can be cascaded to provide 96 dB of very accurate gain range in a monolithic package. The gain control interface provides an input resistance of approximately 2 MΩ and scale factors from 20 dB/V to 30 dB/V for a VREF input voltage of 2.5 V to 1.67 V, respectively. Note that scale factors up to 40 dB/V are achievable with reduced accuracy for scales above 30 dB/V. The gain scales linearly in dB with control voltages (VGN) of 0.4 V to 2.4 V for the 20 dB/V scale and 0.20 V to 1.20 V for the 40 dB/V scale. When VGN is <50 mV, the amplifier is powered down to draw 1.9 mA. Under normal operation, the quiescent supply current of each amplifier channel is only 18 mA. The AD605 is available in a 16-lead PDIP and a 16-lead SOIC_N package and is guaranteed for operation over the −40°C to +85°C temperature range.

Specifications

No. of Channels:
2Channels
No. of Amplifiers:
1 Amplifier, 1Amplifiers
Bandwidth:
40MHz
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Supply Voltage Range:
4.5V to 5.5V
Amplifier Case Style:
NSOIC
No. of Pins:
16Pins
Product Range:
AD605 Series
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
Amplifer Supply Voltage:
4.5V to 5.5V
Supply Voltage Max:
5.5V
Supply Voltage Min:
4.5V
Supply Voltage Type:
Single

Alternate Descriptions

RS Components
AD605ARZ
Newark Electronics
VGA, DUAL, 5V, 40MHZ, 16SOIC; No. of Channels:2Channels; No. of Amplifiers:1 Amplifier; Bandwidth:40MHz; Operating Temperature Min:-40°C; Operating Temperature Max:85°C; Supply Voltage Range:4.5V to 5.5V; Amplifier Case Style:NSOIC; RoHS Compliant: Yes
Richardson RFPD
LINEAR ICS, OTHER
RS Components UK
AD605ARZ
RS Components DE
Spannungsgesteuerter Verstärker AD605ARZ, 5 V 2 No SOIC 16-Pin 20dB CMRR Stromversorgungs-Typ : Single Eingangswiderstand max. : 175Ω Montage-Typ : SMD Betriebstemperatur max. : +85 °C Abmessungen : 10 x 4 x 1.5mm Länge : 10mm Betriebstemperatur min. : -40 °C Breite : 4mm, Analog Devices
RS Components HK
AD605ARZ
RS Components JP
AD605ARZ
RS Components FR
AMPLIFICATEUR AD605ARZ
RS Components CN
AD605ARZ
RS Components ES
AD605ARZ
RS Components NL
AD605ARZ
RS Components NO
AD605ARZ
RS Components US
AD605ARZ
RS Components SG
AD605ARZ
RS Components TW
Amplificatore guadagno variab AD605ARZ