ADS7806

Features:

35mW max POWER DISSIPATION
50W POWER DOWN MODE
25s max ACQUISITION AND
CONVERSION
±1/2LSB max INL AND DNL
72dB min SINAD WITH 1kHz INPUT
±10V, 0V TO +5V, AND 0V TO +4V INPUT RANGES
SINGLE +5V SUPPLY OPERATION
PARALLEL AND SERIAL DATA OUTPUT
PIN-COMPATIBLE WITH 16-BIT ADS7807
USES INTERNAL OR EXTERNAL REFERENCE
28-PIN 0.3" PLASTIC DIP AND SOIC


Pinout




Specifications

Analog Inputs: R1_IN ........................................................................... ±25V
                        R2_IN ...........................................................................±25V
                        CAP .................................... V_ANA  +0.3V to AGND2 0.3V
                        REF .........................................Indefinite Short to AGND2,
                                                                        Momentary Short to V_ANA
Ground Voltage Differences: DGND, AGND1, and AGND2 .............±0.3V
V_ANA .......................................................................................................7V
V_DIG to V_ANA ......................................................................................+0.3V
V_DIG ........................................................................................................7V
Digital Inputs .............................................................. 0.3V to V_DIG +0.3V
Maximum Junction Temperature ................................................... +165°C
Internal Power Dissipation .............................................................825mW
Lead Temperature (soldering, 10s)................................................ +300°C


Description

The ADS7806 is a low-power 12-bit sampling analog-to-digital using state-of-the-art CMOS structures. It contains a complete 12-bit, capacitor-based, SAR A/D with S/H, clock, reference, and microprocessor inter-face with parallel and serial output drivers.
The ADS7806 can acquire and convert to full 12-bit accuracy in 25s max while consuming only 35mW max. Laser-trimmed scaling resistors provide standard industrial input ranges of ±10V and 0V to +5V. In addition, a 0V to +4V range allows development of complete single supply systems.
The 28-pin ADS7806 is available in a plastic 0.3" DIP and in an SOIC, both fully specified for operation over the industrial 40°C to +85°C temperature range.