Analog Devices AD7661
The AD7661 is a 100 kSPS, charge redistribution, 16-bit SAR ADC with internal error correction circuitry. The AD7661 has a maximum integral nonlinearity of 2.5 LSB with no missing 16-bit codes. The AD7661 has an internal reference with a typical temperature drift of 3 ppm/°C.| Part No. | AD7661 |
|---|---|
| Datasheet | AD7661 Download |
| Manufacturer |  Analog Devices |
| Description | 16-Bit 1 MSPS SAR Unipolar ADC with Ref |
| Buy | Stock & Price |
FEATURES
2.5 V internal reference: typical drift 3 ppm/°C Guaranteed max drift 15 ppm/°C Throughput: 100 kSPS INL: ±2.5 LSB max (±0.0038% of full scale) 16-bit resolution with no missing codes S/(N+D): 88 dB min @ 20 kHz THD: –96 dB max @ 20 kHz Analog input voltage range: 0 V to 2.5 V Both AC and DC specifications No pipeline delay Parallel and serial 5 V/3 V interface SPI®/QSPITM/MICROWIRETM/DSP compatible Single 5 V supply operation Power dissipation 16 mW typ, 160 µW @ 1 kSPS without REF 40 mW typ with REF 48-lead LQFP and 48-lead LFCSP packages Pin-to-pin compatible with PulSAR ADCs FUNCTIONAL BLOCK DIAGRAM REFBUFIN REF REFGND AGND AVDD REF DVDD DGND OVDD SERIAL PORT SWITCHED CAP DAC PARALLEL INTERFACE CLOCK CONTROL LOGIC AND CALIBRATION CIRCUITRY 16 DATA[15:0] BUSY RD CS SER/PAR 03033-0-001 AD7661 OGND IN INGND PDREF PDBUF PD RESET OB/2C BYTESWAP CNVST Figure 1. Functional Block Diagram Table 1. PulSAR Selection Type/kSPS PseudoDifferential True Bipolar True Differential 18-Bit M...
