AD1671

Features: ·Conversion Time: 800 ns·1.25 MHz Throughput Rate·Complete: On-Chip Sample-and-Hold Amplifier and Voltage Reference·Low Power Dissipation: 570 mW·No Missing Codes Guaranteed·Signal-to-Noise Plus Distortion Ratio fIN = 100 kHz: 70 dB·Pin Configurable Input Voltage Ranges·Twos Complement o...

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AD1671 Picture
SeekIC No. : 004268300 Detail

AD1671: Features: ·Conversion Time: 800 ns·1.25 MHz Throughput Rate·Complete: On-Chip Sample-and-Hold Amplifier and Voltage Reference·Low Power Dissipation: 570 mW·No Missing Codes Guaranteed·Signal-to-Nois...

floor Price/Ceiling Price

Part Number:
AD1671
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/4

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Product Details

Description



Features:

·Conversion Time: 800 ns
·1.25 MHz Throughput Rate
·Complete: On-Chip Sample-and-Hold Amplifier and
    Voltage Reference
·Low Power Dissipation: 570 mW
·No Missing Codes Guaranteed
·Signal-to-Noise Plus Distortion Ratio
    fIN = 100 kHz: 70 dB
·Pin Configurable Input Voltage Ranges
·Twos Complement or Offset Binary Output Data
·28-Pin DIP and 28-Pin Surface Mount Package
·Out of Range Indicator



Pinout

  Connection Diagram


Specifications

Parameter With Respect to
Min
Max
Units
VCC
ACOM
-0.5
+6.5
V
VEE
DCOM
-6.5
+0.5
V
VLOGIC
DRCOM
-0.5
+6.5
V
ACOM
DCOM
-1.0
+1.0
V
VCC
VLOGIC
-6.5
+6.5
V
ENCODE
DCOM
-0.5
VLOGIC + 0.5
V
REF IN
ACOM
-0.5
VCC + 0.5
V
AIN
ACOM
-11.0
+11.0
V
BPO/UPO
ACOM
-0.5
VCC + 0.5
V
Junction Temperature  
+150
°C
Storage Temperature  
-65
+150
°C
Lead Temperature (10 sec)  
+300
°C

*Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in
the operational sections of this specification is not implied. Exposure to absolute maximum ratings for extended periods may effect device reliability.




Description

The AD1671 is a monolithic 12-bit, 1.25 MSPS analog-todigital converter with an on-board, high performance sampleand-hold amplifier (SHA) and voltage reference. The AD1671 guarantees no missing codes over the full operating temperature range. The combination of a merged high speed bipolar/CMOS process and a novel architecture results in a combination of speed and power consumption far superior to previously available hybrid implementations. Additionally, the greater reliability of monolithic construction offers improved system reliability and lower costs than hybrid designs.

The fast settling input SHA is equally suited for both multiplexed systems that switch negative to positive full-scale voltage levels in successive channels and sampling inputs at frequencies up to and beyond the Nyquist rate. The AD1671 provides both reference output and reference input pins, allowing the on-board reference to serve as a system reference.An external reference can also be chosen to suit the dc accuracy and temperature drift requirements of the application.

The AD1671 uses a subranging flash conversion technique,with digital error correction for possible errors introduced in the first part of the conversion cycle. An on-chip timing generator provides strobe pulses for each of the four internal flash cycles. A single ENCODE pulse is used to control the converter. The digital output data is presented in twos complement or offset binary output format. An out-of-range signal indicates an overflow condition. It can be used with the most significant bit to determine low or high overflow.

The performance of the AD1671 is made possible by using high speed, low noise bipolar circuitry in the linear sections and low power CMOS for the logic sections. Analog Devices' ABCMOS-1 process provides both high speed bipolar and 2-micron CMOS devices on a single chip. Laser trimmed thin-film resistors are used to provide accuracy and temperature stability.

The AD1671 is available in two performance grades and three temperature ranges. The AD1671J and K grades are available over the 0°C to +70°C temperature range. The AD1671A grade is available over the 40°C to +85°C temperature range. The AD1671S grade is available over the 55°C to +125°C temperature range.




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