link to page 18 link to page 12 AD7653Data SheetParameterConditionsMinTypMaxUnit DIGITAL INPUTS Logic Levels VIL –0.3 +0.8 V VIH 2.0 DVDD + 0.3 V IIL –1 +1 µA IIH –1 +1 µA DIGITAL OUTPUTS Data Format5 Pipeline Delay6 VOL ISINK = 1.6 mA 0.4 V VOH ISOURCE = –500 µA OVDD – 0.6 V POWER SUPPLIES Specified Performance AVDD 4.75 5 5.25 V DVDD 4.75 5 5.25 V OVDD 2.7 5.257 V Operating Current8 1 MSPS Throughput AVDD9 With Reference and Buffer 18.7 mA AVDD10 Reference and Buffer Alone 3 mA DVDD11 6.7 mA OVDD11 200 µA Power Dissipation without REF 666 kSPS Throughput11 92 115 mW 1 kSPS Throughput11 138 µW Power Dissipation with REF 1 MSPS Throughput8 128 145 mW TEMPERATURE RANGE12 Specified Performance TMIN to TMAX –40 +85 °C 1 See Analog Input section. 2 LSB means least significant bit. With the 0 V to 2.5 V input range, 1 LSB is 38.15 µV. 3 See Definitions of Specifications section. These specifications do not include the error contribution from the external reference. 4 All specifications in dB are referred to a full-scale input FS. Tested with an input signal at 0.5 dB below full-scale, unless otherwise specified. 5 Parallel or serial 16-bit. 6 Conversion results are available immediately after completed conversion. 7 The max should be the minimum of 5.25 V and DVDD + 0.3 V. 8 In Warp mode. 9 With REF, PDREF and PDBUF are LOW; without REF, PDREF and PDBUF are HIGH. 10 With PDREF, PDBUF LOW and PD HIGH. 11 Impulse Mode. Tested in Paral el Reading mode. 12 Consult factory for extended temperature range. Rev. B | Page 4 of 28 Document Outline Features Applications General Description Functional Block Diagram Product Hightlights Revision History Specifications Timing Specifications Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Definitions of Specifications Integral Nonlinearity Error (INL) Differential Nonlinearity Error (DNL) Full-Scale Error Unipolar Zero Error Spurious-Free Dynamic Range (SFDR) Effective Number of Bits (ENOB) Total Harmonic Distortion (THD) Signal-to-Noise Ratio (SNR) Signal-to-(Noise + Distortion) Ratio (S/[N+D]) Aperture Delay Transient Response Overvoltage Recovery Reference Voltage Temperature Coefficient Typical Performance Characteristics Circuit Information Converter Operation Modes of Operation Transfer Functions Typical Connection Diagram Analog Input Driver Amplifier Choice Voltage Reference Input Power Supply Power Dissipation vs. Throughput Conversion Control Digital Interface Parallel Interface Serial Interface Master Serial Interface Internal Clock Slave Serial Interface External Clock External Discontinuous Clock Data Read After Conversion External Clock Data Read During Conversion Microprocessor Interfacing SPI Interface (ADSP-2191M) Application Hints Bipolar and Wider Input Ranges Layout Outline Dimensions Ordering Guide