ADS7844E
Active12-BIT, 8-CHANNEL SERIAL OUTPUT SAMPLING ANALOG-TO-DIGITAL CONVERTER
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ADS7844E
Active12-BIT, 8-CHANNEL SERIAL OUTPUT SAMPLING ANALOG-TO-DIGITAL CONVERTER
Technical Specifications
Parameters and characteristics for this part
| Specification | ADS7844E |
|---|---|
| Architecture | SAR |
| Configuration | MUX-S/H-ADC |
| Data Interface | SPI |
| Input Type | Single Ended, Differential |
| Mounting Type | Surface Mount |
| Number of A/D Converters | 1 |
| Number of Bits | 12 bits |
| Number of Inputs | 8, 4 |
| Operating Temperature [Max] | 85 °C |
| Operating Temperature [Min] | -40 °C |
| Package / Case | 20-SSOP |
| Package / Case [custom] | 0.154 in |
| Package / Case [custom] | 3.9 mm |
| Ratio - S/H:ADC | 1:1 |
| Reference Type | External |
| Sampling Rate (Per Second) | 200k |
| Supplier Device Package | 20-SSOP |
| Voltage - Supply, Analog | 5 V |
| Voltage - Supply, Analog [Max] | 3.6 V |
| Voltage - Supply, Analog [Min] | 2.7 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Tube | 1 | $ 10.74 | |
| 10 | $ 9.70 | |||
| 50 | $ 9.25 | |||
| 100 | $ 8.03 | |||
| 250 | $ 7.67 | |||
| 500 | $ 7.00 | |||
| 1000 | $ 6.09 | |||
| Texas Instruments | TUBE | 1 | $ 8.22 | |
| 100 | $ 6.70 | |||
| 250 | $ 5.27 | |||
| 1000 | $ 4.47 | |||
Description
General part information
ADS7844 Series
The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation.
Low power, high speed, and on-board multiplexer make the ADS7844 ideal for battery- operated systems such as personal digital assistants, portable multichannel data loggers, and measurement equipment. The serial interface also provides low-cost isolation for remote data acquisition. The ADS7844 is available in a 20-lead QSOP package and the MAX147 equivalent 20-lead SSOP is guaranteed over the –40°C to +85°C temperature range.
The ADS7844 is an 8-channel, 12-bit sampling analog-to-digital converter (ADC) with a synchronous serial interface. Typical power dissipation is 3mW at a 200kHz throughput rate and a +5V supply. The reference voltage (VREF) can be varied between 100mV and VCC, providing a corresponding input voltage range of 0V to VREF. The device includes a shutdown mode which reduces power dissipation to under 1µW. The ADS7844 is guaranteed down to 2.7V operation.
Documents
Technical documentation and resources
