AD7484BSTZ

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Series Information for AD7484BSTZ - Analog Devices

Features

  • feature
    Fast throughput rate: 3 MSPS Wide input bandwidth: 40 MHz No pipeline delays with SAR ADC Excellent dc accuracy performance 2 parallel interface modes Low power: 90 mW (full power) and 2.5 mW (nap mode) Standby mode: 2 u03bcA maximum Single 5 V supply operation Internal 2.5 V reference Full-scale overrange mode (using 15th bit) System offset removal via user access offset register Nominal 0 V to 2.5 V input with shifted range capability Pin compatible upgrade of 12-bit AD7482

Description

14BIT ADC 3MSPS SAR LQFP48 748

The AD7484 is a 14-bit, high speed, low power, successive approximation ADC. The part features a parallel interface with throughput rates up to 3 MSPS. The part contains a low noise, wide bandwidth track-and-hold that can handle input frequencies in excess of 40 MHz. The conversion process is a proprietary algorithmic successive approximation technique that results in no pipeline delays. The input signal is sampled, and a conversion is initiated on the falling edge of the CONVST signal. The conversion process is controlled by an internally trimmed oscillator. Interfacing is via standard parallel signal lines, making the part directly compatible with microcontrollers and DSPs. The AD7484 provides excellent ac and dc performance specifica- tions. Factory trimming ensures high dc accuracy, resulting in very low INL, offset, and gain errors. The part uses advanced design techniques to achieve very low power dissipation at high throughput rates. Power consumption in the normal mode of operation is 90 mW. There are two power saving modes: a nap mode, which keeps the reference circuitry alive for a quick power-up while consuming 2.5 mW, and a standby mode that reduces power consumption to a mere 10 μW. The AD7484 features an on-board 2.5 V reference but can also accommodate an externally provided 2.5 V reference source. The nominal analog input range is 0 V to 2.5 V, but an offset shift capability allows this nominal range to be offset by ±200 mV. This allows the user considerable flexibility in setting the bottom end reference point of the signal range, a useful feature when using single-supply op amps. The AD7484 also provides an 8% overrange capability via a 15th bit. Therefore, if the analog input range strays outside the nominal range by up to 8%, the user can still accurately resolve the signal by using the 15th bit. The AD7484 is powered by a 4.75 V to 5.25 V supply. The part also provides a VDRIVE pin that allows the user to set the voltage levels for the digital interface lines. The range for this VDRIVE pin is 2.7 V to 5.25 V. The part is housed in a 48-lead LQFP package and is specified over a −40°C to +85°C temperature range.

Specifications

Resolution (Bits):
14bit
Sampling Rate:
3MSPS
Input Channel Type:
Single Ended
Data Interface:
Parallel
Supply Voltage Type:
Single
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.25V
ADC / DAC Case Style:
LQFP
No. of Pins:
48Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
Single 14-Bit SAR ADCs
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)
Base Number:
748
Conversion Time:
0.3µs
IC Case Style:
QFP
Linearity Error ADC / DAC +:
0.5LSB
No. of Bits:
14bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Supply Current:
18mA
Supply Voltage Range:
2.7V to 5.25V
Supply Voltage Range - Analogue:
4.75V to 5.25V
Supply Voltage Range - Digital:
4.75V to 5.25V
Termination Type:
Surface Mount Device

Alternate Descriptions

RS Components
ADC,AD7484B 14bit 3MSPS LQFP
Richardson RFPD
CONVERTER - ADC
RS Components UK
ADC,AD7484B 14bit 3MSPS LQFP
RS Components DE
14-Bit-Bit ADC AD7484BSTZ Single Ended Parallel, LQFP 48-Pin 1 Montage-Typ : SMD Abtastrate : 3000ksps Architektur : SAR Versorgungsspannung einzeln typ. : 5 V Integrale Nichtlinearität : ±1LSB Abmessungen : 7 x 7 x 1.4mm, Analog Devices
RS Components HK
ADC,AD7484B 14bit 3MSPS LQFP
RS Components JP
半導体,A/Dコンバータ,14bit,SMT
RS Components FR
CAN 14bits 3Msps LQFP
RS Components CN
ADC,AD7484B 14bit 3MSPS LQFP
RS Components ES
ADC,AD7484B 14bit 3MSPS LQFP
RS Components NL
ADC,AD7484B 14bit 3MSPS LQFP
RS Components NO
AD7484BSTZ
RS Components US
ADC,AD7484B 14bit 3MSPS LQFP
RS Components SG
ADC,AD7484B 14bit 3MSPS LQFP
RS Components TW
ADC Single 3Msps 14-Bit Parallel LQFP48