AD7684 16-Bit, 100 kSPS PulSAR®, Differential ADC in MSOP
Battery-powered equipment
Data acquisition
Instrumentation
Medical instruments
Process control
Data Sheet, Rev. A, 10/07
The AD7684 is a 16-bit, charge redistribution, successive approximation, PulSAR® analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.7 V to 5.5 V. It contains a low power, high speed, 16-bit sampling ADC with no missing codes, an internal conversion clock, and a serial, SPI-compatible interface port. The part also contains a low noise, wide bandwidth, short aperture delay, track-and-hold circuit. On the CS falling edge, it samples the voltage difference between +IN and –IN pins. The reference voltage, REF, is applied externally and can be set up to the supply voltage. Its power scales linearly with throughput.
The AD7684 is housed in an 8-lead MSOP, with an operating temperature specified from −40°C to +85°C.
Applications
- Battery-powered equipment
- Data acquisition
- Instrumentation
- Medical instruments
- Process control
Data Sheet, Rev. A, 10/07
Features and Benefits- 16-bit resolution with no missing codes
- Throughput: 100 kSPS
- INL: ±1 LSB typical, ±3 LSB maximum
- True differential analog input range: ±VREF
0 V to VREF with VREF up to VDD on both inputs - Single-supply operation: 2.7 V to 5.5 V
- Standby current: 1 nA
- Serial interface SPI®-/QSPI-™/MICROWIRE-™/DSP-compatible
- Power dissipation
4 mW @ 5 V
1.5 mW @ 2.7 V
150 μW @ 2.7 V/10 kSPS - 8-lead MSOP package
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Data Sheets
Application Notes
User Guides
Product Highlight
Order Information
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|
| AD7684BRMZ Production | 8 ld MSOP | OTH 50 | -40 to 85C | 7.28 | 6.58 | Y |
| AD7684BRMZRL7 Production | 8 ld MSOP | REEL 1000 | -40 to 85C | 0 | 6.58 | Y |
Evaluation Boards
| Part Number | Description | Price | RoHS |
|---|
| EVAL-AD7684SDZ | Evaluation Board | -1 | Y |
| EVAL-SDP-CB1Z | Evaluation Controller Board | 99 | Y |
Reference Materials
