5962-9063201 Series
Complete 12-Bit, 100 kHz, Sampling ADC (AD7870/AD7870A)
Manufacturer: Analog Devices
Catalog
Complete 12-Bit, 100 kHz, Sampling ADC (AD7870/AD7870A)
| Part | Number of Bits | Ratio - S/H:ADC | Data Interface | Configuration | Number of Inputs | Sampling Rate (Per Second) | Number of A/D Converters | Operating Temperature [Max] | Operating Temperature [Min] | Mounting Type | Voltage - Supply, Digital | Voltage - Supply, Analog | Input Type | Supplier Device Package | Architecture | Package / Case | Package / Case | Package / Case | Reference Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 70 °C | 0 °C | Through Hole | 5 V | 5 V | Single Ended | 24-PDIP | SAR | 0.3 in | 24-DIP | 7.62 mm | Internal |
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 70 °C | 0 °C | Through Hole | 5 V | 5 V | Single Ended | 24-PDIP | SAR | 0.3 in | 24-DIP | 7.62 mm | Internal |
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 70 °C | 0 °C | Surface Mount | 5 V | 5 V | Single Ended | 28-PLCC (11.51x11.51) | SAR | 28-LCC (J-Lead) | Internal | ||
Analog Devices | |||||||||||||||||||
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 85 °C | -40 °C | Through Hole | 5 V | 5 V | Single Ended | 24-PDIP | SAR | 0.3 in | 24-DIP | 7.62 mm | Internal |
Analog Devices | 12 bits | 100k | 1 | 70 °C | 0 °C | Through Hole | 24-PDIP | 0.3 in | 24-DIP | 7.62 mm | |||||||||
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 70 °C | 0 °C | Surface Mount | 5 V | 5 V | Single Ended | 28-PLCC (11.51x11.51) | SAR | 28-LCC (J-Lead) | Internal | ||
Analog Devices | 12 bits | 1:1 | Parallel SPI | S/H-ADC | 1 | 100k | 1 | 85 °C | -40 °C | Through Hole | 5 V | 5 V | Single Ended | 24-CDIP | SAR | 24-CDIP | Internal | ||
Analog Devices |
Key Features
• Complete Monolithic 12-Bit ADC with:2 µs Track/Hold Amplifier8 µs A/D ConverterOn-Chip ReferenceLaser-Trimmed ClockParallel, Byte and Serial Digital Interface
• 57 ns Data Access Time
• 72 dB SNR at 10 kHz Input Frequency(AD7870, AD7875)
• Low Power: –60 mW typ
• Variety of Input Ranges:±3 V for AD78700 V to +5 V for AD7875±10 V for AD7876
Description
AI
The AD7870 /AD7875/AD7876is a fast, complete, 12-bit A/D converter. It consists of a track/hold amplifier, 8 µs successive approximation ADC, 3 V buried Zener reference and versatile interface logic. The ADC features a self-contained internal clock which is laser trimmed to guarantee accurate control of conversion time. No external clock timing components are required; the on-chip clock may he overridden by an external clock if required.The parts offer a choice of three data output formats: a single, parallel, 12-bit word; two 8-bit bytes or serial data. Fast bus access times and standard control inputs ensure easy interfacing to modern microprocessors and digital signal processors.All parts operate from ±5 V power supplies. The AD7870 and AD7876 accept input signal ranges of ±3 V and ±10 V, respectively, while the AD7875 accepts a unipolar 0 V to +5 V input range. The parts can convert full power signals up to 50 kHz.The AD7870 / AD7875 / AD7876 feature dc accuracy specifications such as linearity, full-scale and offset error. In addition, the AD7870 and AD7875 are fully specified for dynamic performance parameters including distortion and signal-to-noise ratio.The parts are available in a 24-pin, 0.3 inch-wide, plastic or hermetic dual-in-line package (DIP). The AD7870 and AD7875 are available in a 28-pin plastic leaded chip carrier (PLCC), while the AD7876 is available and in a 24-pin small outline (SOIC) package.