Pinout
Specifications| Pin and Function Compatible Family | 1 ch, SOT-6 |
| Resolution | 12 bits |
| Input Channels | 1 |
| Interface Type | SPI / QSPI / Microwire |
| Differential Input | No |
| INL (LSB) | +/-0.4 |
| Max KSample Rate | 1000 ksps |
| Min Supply Voltage | 2.7 Volt |
| Max Supply Voltage | 5.25 Volt |
| Reference Source | Supply |
| Temperature Min | -40 deg C |
| Temperature Max | 125 deg C |
| Power Down | Yes |
| Input Sample/Hold | Yes |
| Special Features | Undefined |
| Data Converter Type | ADC |
| Max Sample Rate | 1 MSPS |
| View Using Catalog |
DescriptionThe ADCS7476, ADCS7477, and ADCS7478 are low power, monolithic CMOS 12-, 10- and 8-bit analog-to-digital converters that operate at 1 MSPS. The ADCS7476/77/78 are drop-in replacements for Analog Devices' AD7476/77/78. Each device is based on a successive approximation register architecture with internal track-and-hold. The serial interface is compatible with several standards, such as SPI™, QSPI™, MICROWIRE™, and many common DSP serial interfaces.
The ADCS7476/77/78 uses the supply voltage as a reference, enabling the devices to operate with a full-scale input range of 0 to VDD. The conversion rate is determined from the serial clock (SCLK) speed. These converters offer a shutdown mode, which can be used to trade throughput for power consumption. The ADCS7476/77/78 is operated with a single supply that can range from +2.7V to +5.25V. Normal power consumption during continuous conversion, using a +3V or +5V supply, is 2 mW or 10 mW respectively. The power down feature, which is enabled by a chip select ( ^CS) pin, reduces the power consumption to under 5 µW using a +5V supply. All three converters are available in a 6-lead, SOT-23 package and in a 6-lead LLP, both of which provide an extremely small footprint for applications where space is a critical consideration. These products are designed for operation over the automotive/extended industrial temperature range of −40°C to +125°C.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| ADCS7476AIMF |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
| ADCS7476AIMFX |
CMOS7 |
0 |
16561 |
0 |
0 |
954000 |
4 |
270700104 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Design Tools
| Title |
Size in Kbytes |
Date |
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| Evaluation Systems |
43 Kbytes |
29-May-2008 |
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| To evaluate the ADCS7476, order the ADC121S101EVAL evaluation board |
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ADCS7476 Data Sheet
