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AD640TE/883B

AD640TE/883B
Mfr. #:
AD640TE/883B
Manufacturer:
Analog Devices Inc.
Description:
Logarithmic Amplifiers LOGARITHMIC AMP IC 120MHz 50dB
Lifecycle:
New from this manufacturer.
Datasheet:
AD640TE/883B Datasheet
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union
HTML Datasheet:
AD640TE/883B DatasheetAD640TE/883B Datasheet (P4-P6)AD640TE/883B Datasheet (P7-P9)AD640TE/883B Datasheet (P10-P12)AD640TE/883B Datasheet (P13-P15)AD640TE/883B Datasheet (P16-P18)AD640TE/883B Datasheet (P19-P20)
ECAD Model:
More Information:
AD640TE/883B more Information AD640TE/883B Product Details
Product Attribute
Attribute Value
Manufacturer:
Analog Devices Inc.
Product Category:
Logarithmic Amplifiers
RoHS:
N
Series:
AD640
Amplifier Type:
Logarithmic Amplifier
Number of Channels:
1 Channel
3 dB Bandwidth:
145 MHz
Ib - Input Bias Current:
25 uA
Vos - Input Offset Voltage:
0.2 mV
Supply Voltage - Max:
7.5 V
Supply Voltage - Min:
4.5 V
Operating Supply Current:
44 mA
Minimum Operating Temperature:
- 55 C
Maximum Operating Temperature:
+ 125 C
Mounting Style:
SMD/SMT
Package / Case:
LCC-20
Packaging:
Tube
Bandwidth:
145 MHz
Product:
Logarithmic Amplifiers
Type:
Demodulating Log Amp
Brand:
Analog Devices
Input Voltage Range - Max:
+/- 7.5 V
Dynamic Range dB:
50 dB
GBP - Gain Bandwidth Product:
-
Operating Supply Voltage:
4.5 V to 7.5 V
Pd - Power Dissipation:
200 mW
Product Type:
Logarithmic Amplifiers
Factory Pack Quantity:
54
Subcategory:
Amplifier ICs
Tags
AD640T, AD640, AD64, AD6
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Step1: Vacuum Packaging with PL
Step1:
Vacuum Packaging with PL
Step2: Anti-Static Bag
Step2:
Anti-Static Bag
Step3: Packaging Boxes
Step3:
Packaging Boxes
***ical
SP Amp LOG Amp Single ±7.5V 20-Pin CLLCC Tube
***i-Key
IC LOGARITHMIC 1 CIRCUIT 20LCC
***log Devices
The AD640 is a complete monolithic logarithmic amplifier. A single AD640 provides up to 50 dB of dynamic range for frequencies from dc to 120 MHz. Two AD640s in cascade can provide up to 95 dB of dynamic range at reduced bandwidth. The AD640 uses a successive detection scheme to provide an output current proportional to the logarithm of the input voltage. It is laser calibrated to close tolerances and maintains high accuracy over the full military temperature range using supply voltages from ±4.5 V to ±7.5 V. The AD640 comprises five cascaded dc-coupled amplifier/limiter stages, each having a small signal voltage gain of 10 dB and a –3 dB bandwidth of 350 MHz. Each stage has an associated full-wave detector, whose output current depends on the absolute value of its input voltage. The five outputs are summed to provide the video output (when low-pass filtered) scaled at 1 mA per decade (50 µA per dB). On chip resistors can be used to convert this output current to a voltage with several convenient slope options. A balanced signal output at +50 dB (referred to input) is provided to operate AD640s in cascade. The logarithmic response is absolutely calibrated to within ±1 dB for dc or square wave inputs from ±0.75 mV to ±200 mV, with an intercept (logarithmic offset) at 1 mV dc. An integral X10 attenuator provides an alternative input range of ±7.5 mV to ±2 V dc. Scaling is also guaranteed for sinusoidal inputs. The AD640B is specified for the industrial temperature range of –40°C to +85°C and the AD640T, available processed to MILSTD-883B, for the military range of –55°C to +125°C. Both are available in 20-lead side-brazed ceramic DIPs or leadless chip carriers (LCC). The AD640J is specified for the commercial temperature range of 0°C to +70°C, and is available in both 20-lead plastic DIP (N) and PLCC (P) packages. This device is now available to Standard Military Drawing (DESC) number 5962-9095501MRA and 5962-9095501M2A. Product Highlights Absolute calibration of a wideband logarithmic amplifier is unique. The AD640 is a high accuracy measurement device, not simply a logarithmic building block. Advanced design results in unprecedented stability over the full military temperature range. The fully differential signal path greatly reduces the risk of instability due to inadequate power supply decoupling and shared ground connections, a serious problem with commonly used unbalanced designs. Differential interfaces also ensure that the appropriate ground connection can be chosen for each signal port. They further increase versatility and simplify applications. The signal input impedance is ~500 kΩ in shunt with ~2 pF. The dc-coupled signal path eliminates the need for numerous interstage coupling capacitors and simplifies logarithmic conversion of subsonic signals. The low input offset voltage of 50 µV (200 µV max) ensures good accuracy for low level dc inputs. Thermal recovery “tails,” which can obscure the response when a small signal immediately follows a high level input, have been minimized by special attention to design details. The noise spectral density of 2 nV/√Hz results in a noise floor of ~23 µV rms (–80 dBm) at a bandwidth of 100 MHz. The dynamic range using cascaded AD640s can be extended to 95 dB by the inclusion of a simple filter between the two devices. Applications Radar, sonar, ultrasonic and audio systems Precision instrumentation from DC to 120 MHz Power measurement with absolute calibration Wide range high accuracy signal compression Alternative to discrete and hybrid IF strips Replaces several discrete log amp ICs
Part # Mfg. Description Stock Price
AD640TE/883B
DISTI # AD640TE/883B-ND		Analog Devices IncIC AMP LOG 2.3MA 20CLCC
RoHS: Not compliant
Min Qty: 1
Container: Tube		Temporarily Out of Stock
  • 1:$442.8000
AD640TE/883B
DISTI # 584-AD640TE883B		Analog Devices IncLogarithmic Amplifiers LOGARITHMIC AMP IC 120MHz 50dB
RoHS: Not compliant		0
  • 1:$458.4500
  • 5:$449.4800
AD640TE/883BAnalog Devices IncLog Or Antilog Amplifier, 1 Func, 145MHz Band Width, BIPolar, CQCC20
RoHS: Not Compliant		1955
  • 1000:$660.6200
  • 500:$695.3900
  • 100:$723.9700
  • 25:$754.9900
  • 1:$813.0700
AD640TE/883BAnalog Devices Inc 8
  • 9:$465.0000
  • 7:$496.0000
  • 1:$542.5000
AD640TE/883B
DISTI # AD640TE883B		Analog Devices IncLOGARITHMIT AMPLIFIER
RoHS: Compliant		4
  • 1:$440.0000
Image Part # Description
AD640TE/883B

Mfr.#: AD640TE/883B

OMO.#: OMO-AD640TE-883B

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AD640TD/883B

Mfr.#: AD640TD/883B

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Mfr.#: AD640TD/883B

OMO.#: OMO-AD640TD-883B-ANALOG-DEVICES-INC-ADI

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AD640TE/883B

Mfr.#: AD640TE/883B

OMO.#: OMO-AD640TE-883B-ANALOG-DEVICES-INC-ADI

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OMO.#: OMO-AD640TD-1190

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AD640TD/88B

Mfr.#: AD640TD/88B

OMO.#: OMO-AD640TD-88B-1190

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AD640TE/883B-C

Mfr.#: AD640TE/883B-C

OMO.#: OMO-AD640TE-883B-C-1190

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Availability
Stock:
Available
On Order:
4500
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