24位， 8.5毫瓦， 109分贝， 128/64/32 kSPS的模数转换器 24-Bit, 8.5 mW, 109 dB, 128/64/32 kSPS ADCs
GENERAL DESCRIPTION
The /AD7767-1/AD7767-2 are high performance 24-bit oversampled SAR analog-to-digital converters ADC. The AD7767/AD7767-1/AD7767-2 combine the benefits of a large dynamic range and input bandwidth, consuming 15 mW, 10.5 mW, and 8.5 mW power, respectively, all contained in a 16-lead TSSOP package.
FEATURES
Oversampled successive approximation SAR architecture
High performance ac and dc accuracy, low power
115.5 dB dynamic range, 32 kSPS AD7767-2
112.5 dB dynamic range, 64 kSPS AD7767-1
109.5 dB dynamic range, 128 kSPS AD7767
−118 dB THD
Exceptionally low power
8.5 mW, 32 kSPS AD7767-2
10.5 mW, 64 kSPS AD7767-1
15 mW, 128 kSPS AD7767
High dc accuracy
24 bits, no missing codes NMC
INL: ±3 ppm typical, ±7.6 ppm maximum
Low temperature drift
Zero error drift: 15 nV/°C
Gain error drift: 0.0075% FS
On-chip low-pass FIR filter
Linear phase response
Pass-band ripple: ±0.005 dB
Stop-band attenuation: 100 dB
2.5 V supply with 1.8 V/2.5 V/3 V/3.6 V logic interface options
Flexible interfacing options
Synchronization of multiple devices
Daisy chain capability
Power-down function
Temperature range: −40°C to +105°C
APPLICATIONS
Low power PCI/USB data acquisition systems
Low power wireless acquisition systems
Vibration analysis
Instrumentation
High precision medical acquisition
