Product Details
| GENERAL DESCRIPTION The AD7687 is a 16-bit, charge redistribution, successive approximation, analog-to-digital converter (ADC) that operates from a single power supply, VDD, between 2.3 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 versatile serial interface port. The part also contains a low noise, wide bandwidth, short aperture delay track-and-hold circuit. On the CNV rising edge, it samples the voltage difference between IN+ and IN− pins. The voltages on these pins usually swing in opposite phase between 0 V to REF. The reference voltage, REF, is applied externally and can be set up to the supply voltage. FEATURES 16-bit resolution with no missing codes Throughput: 250 kSPS INL: ±0.4 LSB typ, ±1.5 LSB max (±23 ppm of FSR) Dynamic range: 96.5 dB S/(N + D): 95.5 dB at 20 kHz THD: −118 dB at 20 kHz True differential analog input range ±VREF 0 V to VREF with VREF up to VDD on both inputs No pipeline delay Single-supply 2.3 V to 5.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface Proprietary serial interface: SPI-/QSPI™-/MICROWIRE™-/DSP compatible1 Daisy-chain multiple ADCs and BUSY indicator Power dissipation 1.35 mW at 2.5 V/100 kSPS, 4 mW at 5 V/100 kSPS, and 1.4 µW at 2.5 V/100 SPS Standby current: 1 nA 10-lead MSOP (MSOP-8 size) and 3 mm × 3 mm LFCSP (SOT-23 size) Pin-for-pin compatible with AD7685, AD7686, and AD7688 APPLICATIONS Battery-powered equipment Data acquisitions Instrumentation Medical instruments Process controls |
Product Description
| TYPE | DESCRIPTION |
| ANSC PART# | ANSC- AD7687BRMZ |
| Category | Integrated Circuits (ICs) |
| Data Acquisition | |
| Analog to Digital Converters (ADC) | |
| Mfr | Original |
| Series | PulSAR® |
| Package | Tube |
| Product Status | Active |
| Number of Bits | 16 |
| Sampling Rate (Per Second) | 250k |
| Number of Inputs | 1 |
| Input Type | Differential |
| Data Interface | SPI, DSP |
| Configuration | S/H-ADC |
| Ratio - S/H:ADC | 1:01 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External |
| Voltage - Supply, Analog | 2.3V ~ 5.5V |
| Voltage - Supply, Digital | 2.3V ~ 5.5V |
| Features | - |
| Operating Temperature | -40°C ~ 85°C |
| Package / Case | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 10-MSOP |
| Mounting Type | Surface Mount |
| Base Product Number | AD7687 |
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