The AD7895 is a fast 12-bit ADC that operates from a single +5 V supply and is housed in a small 8-pin mini-DIP and 8-pin SOIC. The part contains a 3.8 µs successive approximation A/D converter, an on-chip track/hold amplifier, an on-chip clock and a high speed serial interface.
Output data from the AD7895 is provided via a high speed, serial interface port. This two-wire serial interface has a serial clock input and a serial data output with the external serial clock accessing the serial data from the part.
In addition to the traditional dc accuracy specifications such as linearity and full-scale and offset errors, the AD7895 is specified for dynamic performance parameters, including harmonic distortion and signal-to-noise ratio.
The part accepts an analog input range of ±10 V (AD7895-10), ±2.5 V (AD7895-3), 0 V to 2.5 V (AD7895-2) and operates from a single +5 V supply, consuming only 20 mW max.
The AD7895 features a high sampling rate mode and, for low power applications, a proprietary automatic power-down mode where the part automatically goes into power down once conversion is complete and "wakes up" before the next conversion cycle.
The part is available in a small, 8-pin, 0.3" wide, plastic dual-in-line package (mini-DIP) and in an 8-pin, small outline IC (SOIC).
Features and Benefits
| Analog to Digital Converters |
Document | note |
AD7895: 5 V, 12-Bit, Serial 3.8 µs ADC in 8-Pin Package Data Sheet (Rev. 0) | PDF 314 kB |
Document | note |
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog | PDF 1885 kB |
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
---|---|---|---|---|---|---|
AD7895ACHIPS-10 Last Time Buy | CHIPS OR DIE | REEL 140 | 25C | 0 | 5.92 | Y |
AD7895ANZ-10 Production | 8 ld PDIP | OTH 50 | -40 to 85C | 7.05 | 5.96 | Y |
AD7895ANZ-2 Production | 8 ld PDIP | OTH 50 | -40 to 85C | 7.4 | 6.26 | Y |
AD7895ANZ-3 Production | 8 ld PDIP | OTH 50 | -40 to 125C | 7.4 | 6.26 | Y |
AD7895ARZ-10 Production | 8 ld SOIC | OTH 98 | -40 to 85C | 5.92 | 5.01 | Y |
AD7895ARZ-10REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 5.01 | Y |
AD7895ARZ-2 Production | 8 ld SOIC | OTH 98 | -40 to 85C | 5.92 | 5.01 | Y |
AD7895ARZ-2REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 5.01 | Y |
AD7895ARZ-3 Production | 8 ld SOIC | OTH 98 | -40 to 85C | 5.92 | 5.01 | Y |
AD7895ARZ-3REEL Production | 8 ld SOIC | REEL 2500 | -40 to 85C | 0 | 5.01 | Y |
AD7895BRZ-10 Production | 8 ld SOIC | OTH 98 | -40 to 85C | 8.1 | 6.88 | Y |
AD7895BRZ-2 Production | 8 ld SOIC | OTH 98 | -40 to 85C | 8.1 | 6.88 | Y |