AD7490 Series

16-Channel, 1 MSPS, 12-Bit ADC with Sequencer

Catalog

16-Channel, 1 MSPS, 12-Bit ADC with Sequencer

Part	Ratio - S/H:ADC	Configuration	Number of Bits	Number of A/D Converters	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply, Analog [Min]	Voltage - Supply, Analog [Max]	Mounting Type	Data Interface	Sampling Rate (Per Second)	Reference Type	Package / Case	Input Type	Architecture	Voltage - Supply, Digital [Max]	Voltage - Supply, Digital [Min]	Supplier Device Package	Input Range [Max]	Input Range [Min]	Supplied Contents	Power (Typ) @ Conditions	Number of Inputs	Package / Case	Package / Case [y]
Analog Devices AD7490WBCPZ-REEL7	1:1	MUX-S/H-ADC	12 bits	1	125 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP MICROWIRE™ QSPI™ SPI™	1 M	External	32-WFQFN Exposed Pad CSP	Single Ended	SAR	5.25 V	2.7 V	32-LFCSP-WQ (5x5)
Analog Devices EVAL-AD7490SDZ			12 bits	1						DSP MICROWIRE™ QSPI™ Serial SPI™	1 M								VREF	0	Board(s)	12.5 mW
Analog Devices AD7490BRU	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	28-TSSOP	Single Ended	SAR	5.25 V	2.7 V	28-TSSOP					16	0.173 in	4.4 mm
Analog Devices AD7490BRUZ-REEL7	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	28-TSSOP	Single Ended	SAR	5.25 V	2.7 V	28-TSSOP					16	0.173 in	4.4 mm
Analog Devices AD7490BCPZ-REEL7	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	32-VFQFN Exposed Pad CSP	Single Ended	SAR	5.25 V	2.7 V	32-LFCSP-VQ (5x5)					16
Analog Devices AD7490WBCSZ-REEL7	1:1	MUX-S/H-ADC	12 bits	1	125 °C	-40 °C	2.7 V	5.25 V	Surface Mount Wettable Flank	DSP MICROWIRE™ QSPI™ SPI™	1 M	External	32-WFQFN Exposed Pad CSP	Single Ended	SAR	5.25 V	2.7 V	32-LFCSP-SS (5x5)
Analog Devices AD7490BCPZ	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	32-VFQFN Exposed Pad CSP	Single Ended	SAR	5.25 V	2.7 V	32-LFCSP-VQ (5x5)					16
Analog Devices AD7490BRU-REEL	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	28-TSSOP	Single Ended	SAR	5.25 V	2.7 V	28-TSSOP					16	0.173 in	4.4 mm
Analog Devices AD7490BRUZ-REEL	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP MICROWIRE™ QSPI™ SPI™	1 M	External	28-TSSOP	Single Ended	SAR	5.25 V	2.7 V	28-TSSOP					16	0.173 in	4.4 mm
Analog Devices AD7490BRUZ	1:1	MUX-S/H-ADC	12 bits	1	85 °C	-40 °C	2.7 V	5.25 V	Surface Mount	DSP SPI	1 M	External	28-TSSOP	Single Ended	SAR	5.25 V	2.7 V	28-TSSOP					16	0.173 in	4.4 mm

Catalog

16-Channel, 1 MSPS, 12-Bit ADC with Sequencer

Key Features

• Fast throughput rate: 1 MSPS

• Specified for VDDof 2.7 V to 5.25 V

• Low power at maximum throughput rates

• 5.4 mW maximum at 870 kSPS with 3 V supplies

• 12.5 mW maximum at 1 MSPS with 5 V supplies

• 16 (single-ended) inputs with sequencer

• Wide input bandwidth: 69.5 dB SNR at 50 kHz input frequency

• Flexible power/serial clock speed management

• No pipeline delays

• High speed serial interface, SPI/QSPI™/MICROWIRE™/ DSP compatible

• Full shutdown mode: 0.5 μA maximum

• 28-lead TSSOP and 32-lead LFCSP packages

• AEC-Q100 qualified for automotive applications

• DownloadAD7490-EP Data Sheet(pdf)

• Military temperature range (−55°C to +125°C)

• Controlled manufacturing baseline

• One assembly/test site

• One fabrication site

• Enhanced product change notification

• Qualification data available on request

• V62/12635 DSCC Drawing Number

Description

The AD7490 is a 12-bit high speed, low power, 16-channel, successive approximation ADC. The part operates from a single 2.7 V to 5.25 V power supply and features throughput rates up to 1 MSPS. The part contains a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 1 MHz.The conversion process and data acquisition are controlled usingCSand the serial clock signal, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge ofCS, and conversion is also initiated at this point. There are no pipeline delays associated with the part.The AD7490 uses advanced design techniques to achieve very low power dissipation at high throughput rates. For maximum throughput rates, the AD7490 consumes just 1.8 mA with 3 V supplies, and 2.5 mA with 5 V supplies.By setting the relevant bits in the control register, the analog input range for the part can be selected to be a 0 V to REFIN input or a 0 V to 2 × REFIN input, with either straight binary or twos complement output coding. The AD7490 features 16 single-ended analog inputs with a channel sequencer to allow a preprogrammed selection of channels to be converted sequen-tially. The conversion time is determined by the SCLK frequency because this is also used as the master clock to control the conversion.The AD7490 is available in a 32-lead LFCSP and a 28-lead TSSOP package.APPLICATIONSMultichannel system monitoringBattery-powered equipmentPower line monitoringData acquisition, instrumentation, and process control