AD7940BRM

Semiconductors - ICs

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Series Information for AD7940BRM - Analog Devices

Features

  • feature
    Fast throughput rate: 100 kSPS Specified for VDD of 2.5 V to 5.5 V Low power 4 mW typ at 100 kSPS with 3 V supplies 17 mW typ at 100 kSPS with 5 V supplies Wide input bandwidth: 81 dB SINAD at 10 kHz input frequency Flexible power/serial clock speed management No pipeline delays High speed serial interface SPIu00ae/QSPIu2122/MICROWIREu2122/DSP compatible Standby mode: 0.5 u00b5A max 6-Lead SOT-23 and 8-Lead MSOP packages
AD7940BRM image
Not RoHS Compliant

Description

IC 14BIT ADC SMD 7940 MSOP8

The AD79401 is a 14-bit, fast, low power, successive approximation ADC. The part operates from a single 2.50 V to 5.5 V power supply and features throughput rates up to 100 kSPS. The part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 7 MHz. The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipelined delays associated with the part. The AD7940 uses advanced design techniques to achieve very low power dissipation at fast throughput rates. The reference for the part is taken internally from VDD, which allows the widest dynamic input range to the ADC. Thus, the analog input range for this part is 0 V to VDD. The conversion rate is determined by the SCLK frequency.

Specifications

Resolution (Bits):
14bit
Sampling Rate:
100kSPS
Input Channel Type:
Single Ended
Data Interface:
Serial SPI
Supply Voltage Type:
Single
Supply Voltage Min:
2.5V
Supply Voltage Max:
5.5V
ADC / DAC Case Style:
MSOP
No. of Pins:
8Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Single 14-Bit SAR ADCs
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
A/D / D/A Features:
DSP MicroWire QSPI SPI
Base Number:
7940
Conversion Time:
8µs
IC Case Style:
SOP
IC Generic Number:
7940
Linearity Error ADC / DAC +:
1LSB
Linearity Error ADC / DAC -:
1LSB
Logic Function Number:
7940
No. of Bits:
14bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Power Dissipation Ptot Max:
26.4mW
Supply Current:
5.2mA
Supply Voltage Range:
2.5V to 5.5V
Supply Voltage Range - Analogue:
2.5V to 5.5V
Termination Type:
Surface Mount Device
Voltage Vcc:
5V

Alternate Descriptions

Richardson RFPD
CONVERTER - ADC