AD7699 16-Bit, 8-Channel, 500 kSPS PulSAR ADC
The AD7699 is an 8-channel, 16-bit, charge redistribution successive approximation register (SAR) analog-to-digital converter (ADC) that operates from a single power supply, VDD.
The AD7699 contains all components for use in a multichannel, low power data acquisition system, including a true 16-bit SAR ADC with no missing codes; an 8-channel low crosstalk multip-lexer useful for configuring the inputs as single-ended (with or without ground sense), differential, or bipolar; an internal 4.096 V low drift reference and buffer; a temperature sensor; a selectable one-pole filter; and a sequencer that is useful when channels are continuously scanned in order.
The AD7699 uses a simple serial port interface (SPI) for writing to the configuration register and receiving conversion results. The SPI interface uses a separate supply, VIO, which is set to the host logic level. Power dissipation scales with throughput.
The AD7699 is housed in a tiny 20-lead LFCSP with operation specified from −40°C to +85°C.
Applications
- Battery-powered equipment
- Medical instruments: ECG/EKG
- Mobile communications: GPS
- Personal digital assistants
- Power line monitoring
- Data acquisition
- Seismic data acquisition systems
- Instrumentation
- Process control
Features and Benefits- 16-bit resolution with no missing codes
- 8-channel multiplexer with choice of imputs
Unipolar single ended
Differential (GND sense)
Pseudobipolar - Throughput: 500 kSPS
- INL: ±0.5 LSB typical, ±1.5 LSB maximum (±23 ppm or FSR)
- Dynamic range: 93.3 dB
- SINAD: 91.5 dB at 20 kHz
- THD: −97 dB at 20 kHz
- Analog input range: 0 V to VREF with VREF up to VDD
- See data sheet for additional features
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Data Sheets
Application Notes
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD7699BCBZ-RL7 Pre-Release | 20-Ball Wafer Level Chip Scale Package [WLCSP] | REEL 0 | -40 to 85C | 0 | 0 | Y |
| AD7699BCBZ-RL7-U1 Pre-Release | 20-Ball Wafer Level Chip Scale Package [WLCSP] | REEL 0 | -40 to 85C | 0 | 0 | Y |
| AD7699BCPZ Production | 20 ld LFCSP (4x4mm 2.5EP) | OTH 490 | -40 to 85C | 8.84 | 7.99 | Y |
| AD7699BCPZRL7 Production | 20 ld LFCSP (4x4mm 2.5EP) | REEL 1500 | -40 to 85C | 0 | 7.99 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD7699EDZ | Evaluation Board | 99 | Y |
| EVAL-CED1Z | Evaluation Controller Board | 249 | Y |
Reference Materials
