AD7942BRMZ

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Series Information for AD7942BRMZ - Analog Devices

Features

  • feature
    14-bit resolution with no missing codes Throughput: 250 kSPS INL: u00b10.4 LSB typical, u00b11 LSB maximum (u00b10.0061% of FSR) SINAD: 85 dB at 20 kHz THD: u2212100 dB at 20 kHz Pseudo differential analog input range 0 V to VREF with VREF up to VDD No pipeline delay Single-supply 2.3 V to 5.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Proprietary serial interface SPI-/QSPI-/MICROWIRE-/DSP-compatible1 Daisy-chaining for multiple ADCs and busy indicator Power dissipation 1.25 mW at 2.5 V/100 kSPS, 3.6 mW at 5 V/100 kSPS 1.25 u03bcW at 2.5 V/100 SPS Standby current: 1 nA 10-lead package: MSOP and 3 mm u00d7 3 mm LFCSP Pin-for-pin compatible with the 16-bit AD7685

Description

14BIT ADC 250KSPS SAR SMD 7942

The AD7942 is a 14-bit, charge redistribution, successive approxi- mation PulSAR® ADC that operates from a single power supply, VDD, between 2.3 V to 5.5 V. It contains a low power, high speed, 14-bit sampling ADC with no missing codes, an internal conversion clock, and a versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay track-and-hold circuit. On the CNV rising edge, it samples an analog input, IN+, between 0 V to VREF with respect to a ground sense, IN−. The reference voltage, VREF, is applied externally and is set up to be the supply voltage. Its power scales linearly with the throughput. The SPI-compatible serial interface also features the ability, using the SDI input, to daisy-chain several ADCs on a single 3-wire bus and provides an optional busy indicator. It is com- patible with 1.8 V, 2.5 V, 3 V, or 5 V logic using a separate supply (VIO). The AD7942 is housed in a 10-lead MSOP or a 10-lead LFCSP package yet fits in the same size footprint as the 8-lead MSOP or SOT-23. Operation for the AD7942 is specified from −40°C to +85°C.

Specifications

Resolution (Bits):
14bit
Sampling Rate:
250kSPS
Input Channel Type:
Pseudo Differential
Data Interface:
Serial SPI
Supply Voltage Type:
Single
Supply Voltage Min:
2.3V
Supply Voltage Max:
5.5V
ADC / DAC Case Style:
MSOP
No. of Pins:
10Pins
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 1 - Unlimited
SVHC:
No SVHC (07-Jul-2017)
A/D / D/A Features:
No Pipeline Delay Multiple ADCs Daisy Chain Busy Indicator Serial Interface SPI®
Base Number:
7942
Conversion Time:
2.2µs
IC Case Style:
SOP
IC Generic Number:
7942
Linearity Error:
0.0061%
Linearity Error ADC / DAC +:
0.4LSB
Linearity Error ADC / DAC -:
0.4LSB
Logic Function Number:
7942
No. of Bits:
14bit
No. of Channels:
1Channels
Operating Temperature Range:
-40°C to +85°C
Supply Current:
1nA

Alternate Descriptions

RS Components
ADC Single SAR 250KSPS 14-Bit Serial
Newark Electronics
Analogue to Digital Converter, SAR, 14 bit, 250 kSPS, Single, 2.3 V, 5.5 V, MSOP RoHS Compliant: Yes
Distrelec
A/D converter IC [Analog Devices] AD7942BRMZ A/D converter IC
Richardson RFPD
CONVERTER - ADC
RS Components UK
ADC Single SAR 250KSPS 14-Bit Serial
RS Components DE
14-Bit-Bit ADC AD7942BRMZ Differentiell SPI, MSOP 10-Pin 1 Digital Interface Typ : Seriell (SPI) Montage-Typ : SMD Abtastrate : 250ksps Architektur : SAR Versorgungsspannung einzeln typ. : 5 V Eingangssignal-Typ : Pseudo-Differential Integrale Nichtlinearität : ±1LSB Abmessungen : 3 x 3 x 0.85mm, Analog Devices
RS Components HK
ADC Single SAR 250KSPS 14-Bit Serial
RS Components JP
半導体,シングルA/Dコンバータ
RS Components FR
ADC Single SAR 250KSPS 14-Bit Serial
RS Components CN
ADC Single SAR 250KSPS 14-Bit Serial
RS Components ES
ADC Single SAR 250KSPS 14-Bit Serial
RS Components NL
ADC Single SAR 250KSPS 14-Bit Serial
RS Components NO
ADC Single SAR 250KSPS 14-Bit Serial
RS Components US
ADC Single SAR 250KSPS 14-Bit Serial
RS Components SG
ADC Single SAR 250KSPS 14-Bit Serial
RS Components TW
ADC Single SAR 250KSPS 14-Bit Serial