AD7895 True Bipolar Input, 5 V Single Supply, 12-Bit, Serial 3.8 µs ADC in 8-Pin Package

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
  • Fast 12-Bit ADC with 3.8 µs Conversion Time
  • 8-Pin Mini-DlP and SOIC
  • Single 5 V Supply Operation
  • High Speed, Easy-to-Use, Serial Interface
  • On-Chip Track/Hold Amplifier
  • High Input Impedance
  • Selection of Input Ranges:
    ±10 V for AD7895-10
    ±2.5 V for AD7895-3
    0 V to +2.5 V for AD7895-2
  • Low Power: 20 mW max
  • 14-Bit Pin Compatible Upgrade (AD7894)
Analog to Digital Converters
Data Sheets
Documentnote
AD7895: 5 V, 12-Bit, Serial 3.8 µs ADC in 8-Pin Package Data Sheet (Rev. 0)PDF 314 kB
Product Highlight
Documentnote
8- to 18-Bit SAR ADCs ... From the Leader in High Performance AnalogPDF 1885 kB
Order Information
Part NumberPackagePacking QtyTemp RangePrice 100-499Price 1000+RoHS
AD7895ACHIPS-10 Last Time BuyCHIPS OR DIEREEL 14025C05.92Y
AD7895ANZ-10 Production8 ld PDIPOTH 50-40 to 85C7.055.96Y
AD7895ANZ-2 Production8 ld PDIPOTH 50-40 to 85C7.46.26Y
AD7895ANZ-3 Production8 ld PDIPOTH 50-40 to 125C7.46.26Y
AD7895ARZ-10 Production8 ld SOICOTH 98-40 to 85C5.925.01Y
AD7895ARZ-10REEL Production8 ld SOICREEL 2500-40 to 85C05.01Y
AD7895ARZ-2 Production8 ld SOICOTH 98-40 to 85C5.925.01Y
AD7895ARZ-2REEL Production8 ld SOICREEL 2500-40 to 85C05.01Y
AD7895ARZ-3 Production8 ld SOICOTH 98-40 to 85C5.925.01Y
AD7895ARZ-3REEL Production8 ld SOICREEL 2500-40 to 85C05.01Y
AD7895BRZ-10 Production8 ld SOICOTH 98-40 to 85C8.16.88Y
AD7895BRZ-2 Production8 ld SOICOTH 98-40 to 85C8.16.88Y
Reference Materials
AD7895: 5 V, 12-Bit, Serial 3.8 µs ADC in 8-Pin Package Data Sheet (Rev. 0) ad7895
8- to 18-Bit SAR ADCs ... From the Leader in High Performance Analog ad7893
MS-2210:高速ADC的电源设计 ad9861