AD15700

1 MSPS 16-/14-Bit Analog I/O Port AD15700 FEATURES 16-Bit A/D Converter 1 MSPS S/(N + D): 90 dB Typ @ 250 kHz No Pipeline Delay 14-Bit D/A Converter Settling Time: 1 ␮s S/N: 92 dB Typ 2 80 MHz Amplifiers 30 V/␮s Slew Rate Rail-to-Rail Input and Output Output Current 15 mA 2 Gain Setting Center Tapped Resistors Resistor Ratio Tracking: 2 ppm/؇ C Unipolar Operation SPI®/QSPI™/MICROWIRE™/DSP Compatible 132 mW Typical Power Dissipation APPLICATIONS Optical MEMS Mirror Control Industrial Process Control Data Acquisition Instrumentation Communication FUNCTIONAL BLOCK DIAGRAM VDD_DAC DGND_DAC VREF 14-BIT DAC VOUT_DAC AGND_DAC CS_DAC DIN SCLK CONTROL LOGIC 14-BIT DATA LATCH –IN1 +IN1 +VS1 SERIAL INPUT REGISTER VOUT1 –VS1 COMMON AD15700 RA1 1.5k⍀ RB1 1.5k⍀ REF REFGND IND(4R) INC(4R) INB(2R) INA(R) INGND VOUT2 +VS2 +IN2 –IN2 –VS2 CLOCK SAR ADC CONTROL LOGIC AND CALIBRATION CIRCUITRY 4R 4R 2R R SWITCHED CAP DAC PARALLEL INTERFACE 16 SERIAL PORT RC1 RPAD1 OVDD OGND SER/PAR BUSY D[15:0] CS_ADC RD OB/ 2C BYTESWAP AVDD GENERAL DESCRIPTION PD RESET RPAD2 1.5k⍀ 1.5k⍀ The AD15700 is a precision component to interface analog input and output channels to a digital processor. It is ideal for arealimited applications that require maximum circuit density. The AD15700 contains the functionality of a 16-bit, 1 MSPS charge redistribution SAR analog-to-digital converter that operates from a 5 V power supply. The high speed 16-bit sampling ADC incorporates a resistor input scaler that a...