AD4000

Data Sheet AD4000/AD4004/AD4008 16-Bit, 2 MSPS/1 MSPS/500 kSPS, Precision, Pseudo Differential, SAR ADCs FEATURES ► Easy Drive expands signal chain flexibility ► High-Z mode significantly reduces signal chain settling requirements ► Fast conversion phase extends the ADC acquisition time ► Input overvoltage protection clamp sinks up to 50 mA ► High performance ► First conversion accurate, no latency or pipeline delay ► Guaranteed 16-bit, no missing codes ► Throughput: 2 MSPS/1 MSPS/500 kSPS options ► INL: ±1.0 LSB maximum ► SNR: 93 dB at fIN = 1 kHz, VREF = 5 V ► THD: −115 dB at fIN = 1 kHz; −95 dB at fIN = 100 kHz ► Pseudo differential input range ► Flexible external reference voltage range (2.4 V to 5.1 V) ► Low power ► Single 1.8 V supply operation with 1.71 V to 5.5 V logic interface ► 2.5 mW at 500 kSPS (VDD only) ► 70 µW at 10 kSPS, 14 mW typical at 2 MSPS (total power) ► SPI-/QSPI-/MICROWIRE-/DSP-compatible serial interface ► 10-lead packages: 3 mm × 3 mm LFCSP, 3 mm × 4.90 mm MSOP ► Guaranteed operation: −40°C to +125°C APPLICATIONS ► Automated test equipment ► Machine automation ► Medical equipment ► Battery-powered equipment ► Precision data acquisition systems ► Instrumentation and control systems FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The AD4000/AD4004/AD4008 are high accuracy, high speed, low power, 16-bit, precision successive approximation register (SAR) analog-to-digital converters (ADCs). These ADCs incorporate Easy Drive features, such as high-Z mode ...