AD7490
PRODUCTION16-Channel, 1 MSPS, 12-Bit ADC with Sequencer
- Part Models
- 10
- 1ku List Price
- Starting From $7.80
Part Details
- Fast throughput rate: 1 MSPS
- Specified for VDD of 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
- Download AD7490-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
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 using CS and the serial clock signal, allowing the device to easily interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS, 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.
APPLICATIONS
- Multichannel system monitoring
- Battery-powered equipment
- Power line monitoring
- Data acquisition, instrumentation, and process control
Documentation
Data Sheet 3
User Guide 1
Application Note 1
Technical Articles 1
Evaluation Design File 1
Tutorial 3
Technical Book 1
Product Selection Guide 1
Device Drivers 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| AD7490BCPZ | 32-Lead LFCSP (5mm x 5mm w/ EP) | ||
| AD7490BCPZ-REEL7 | 32-Lead LFCSP (5mm x 5mm w/ EP) | ||
| AD7490BRUZ | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7490BRUZ-REEL | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7490BRUZ-REEL7 | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7490SRUZ-EP-RL7 | 28-Lead TSSOP (4.4mm x 9.7mm) | ||
| AD7490WBCPZ | 32-Lead LFCSP (5mm x 5mm w/ EP) | ||
| AD7490WBCPZ-REEL7 | 32-Lead LFCSP (5mm x 5mm w/ EP) | ||
| AD7490WBCSZ | LFCSP SIDESOLDERABLE | ||
| AD7490WBCSZ-REEL7 | LFCSP SIDESOLDERABLE |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Mar 23, 2012 - 11_0104 Conversion of Select Sizes of LFCSP Package Outlines from Punch to Sawn and Transfer of Assembly Site to ASE-Korea. |
||
| AD7490BCPZ | PRODUCTION | |
| AD7490BCPZ-REEL7 | PRODUCTION | |
|
Feb 8, 2010 - 04_0080 Qualification of the 8" C6 and Q Wafer Fab Processes at Analog Devices, Limerick, Ireland. |
||
| AD7490BCPZ | PRODUCTION | |
| AD7490BCPZ-REEL7 | PRODUCTION | |
| AD7490BRUZ | PRODUCTION | |
| AD7490BRUZ-REEL | PRODUCTION | |
| AD7490BRUZ-REEL7 | PRODUCTION | |
|
Jun 17, 2009 - 09_0070 Change in the Idd static Auto Standby mode specification for the AD7490 |
||
| AD7490BCPZ | PRODUCTION | |
| AD7490BCPZ-REEL7 | PRODUCTION | |
| AD7490BRUZ | PRODUCTION | |
| AD7490BRUZ-REEL | PRODUCTION | |
| AD7490BRUZ-REEL7 | PRODUCTION | |
|
Apr 5, 2021 - 21_0035 Amkor Philippines as an Alternate Site for TSSOP_4.4 |
||
| AD7490BRUZ | PRODUCTION | |
| AD7490BRUZ-REEL | PRODUCTION | |
| AD7490BRUZ-REEL7 | PRODUCTION | |
|
Jan 16, 2012 - 11_0244 Halogen Free Material Change for Select TSSOP Products Assembled at Amkor |
||
| AD7490BRUZ | PRODUCTION | |
| AD7490BRUZ-REEL | PRODUCTION | |
| AD7490BRUZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Evaluation Software 1
Can't find the software or driver you need?
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| High Voltage Op Amps ≥12V 1 | ||
| ADA4899-1 | PRODUCTION | Unity-Gain Stable, Ultralow Distortion, 1 nV/√Hz Voltage Noise, High Speed Op Amp |
| Low Input Bias Current Op Amps (≤100 pA) 1 | ||
| ADA4627-1 | PRODUCTION | 36 V, 19 MHz, Low Noise, Low Bias Current, JFET Op Amp |
| Low Noise Op Amps (≤ 10nV/√Hz) 1 | ||
| ADA4897-1 | RECOMMENDED FOR NEW DESIGNS | 1 nV/√Hz, Low Power, Rail-to-Rail Output Amplifiers |
| Low Power Op Amps (≤ 1mA/amp) 1 | ||
| AD8031 | PRODUCTION | 2.7 V, 800 µA, 80 MHz Rail-to-Rail I/O Single Amplifier |
| Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C) 4 | ||
| ADA4841-1 | PRODUCTION | Low Power, Low Noise and Distortion, Rail-to-Rail Output Amplifier |
| AD8599 | PRODUCTION | Ultralow Distortion, Ultralow Noise Op Amp (Dual) |
| AD8021 | PRODUCTION | Low Noise, High Speed Amplifier for 16-Bit Systems |
| AD8605 | PRODUCTION | Precision, Low Noise, CMOS, RRIO Op Amp (single) |
| Series Voltage References 7 | ||
| ADR431 | PRODUCTION | Ultralow Noise XFET® Voltage References with Current Sink and Source Capability |
| ADR421 | PRODUCTION | Ultraprecision, Low Noise, 2.500 V XFET® Voltage References |
| ADR4525 | PRODUCTION | Ultra-Low-Noise, High-Accuracy 2.5V Voltage Reference |
| ADR03 | PRODUCTION | Ultracompact, Precision 2.5 V Voltage Reference |
| AD1582 | PRODUCTION | 2.5V Micropower, Precisions Series Mode Voltage References |
| ADR381 | PRODUCTION | 2.048 V and 2.5 V Bandgap Voltage References |
| ADR391 | PRODUCTION | 2.5V Micropower, Low Noise Precision Voltage Reference with Shutdown |
| Shunt Voltage References 1 | ||
| AD780 | PRODUCTION | 2.5 V/3.0 V High Precision Reference |
| Standard Digital Isolators 3 | ||
| ADUM1301 | PRODUCTION | Triple-Channel Digital Isolator |
| ADUM1401 | PRODUCTION | Quad-Channel Digital Isolator (3/1 Channel Directionality) |
| ADUM3441 | Obsolete | Quad Channel, High Speed Digital Isolators |
Evaluation Kits
AD7490 Evaluation Board