AD7988-5 Series

16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP

Catalog

16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP

Part	Sampling Rate (Per Second)	Data Interface	Ratio - S/H:ADC	Package / Case	Architecture	Input Type	Reference Type	Configuration	Mounting Type	Number of A/D Converters	Supplier Device Package	Voltage - Supply, Analog [Max]	Voltage - Supply, Analog [Min]	Number of Bits	Number of Inputs	Voltage - Supply, Digital [Min]	Voltage - Supply, Digital [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case [x]	Package / Case [x]
Analog Devices AD7988-5BCPZ-RL7	500k	DSP SPI	1:1	10-VFDFN Exposed Pad CSP	SAR	Pseudo-Differential	External	S/H-ADC	Surface Mount	1	10-LFCSP-WD (3x3)	2.625 V	2.375 V	16	1	2.375 V	2.625 V	125 °C	-40 °C
Analog Devices AD7988-1BCPZ-RL	100k	DSP SPI	1:1	10-VFDFN Exposed Pad CSP	SAR	Pseudo-Differential	External	S/H-ADC	Surface Mount	1	10-LFCSP-WD (3x3)	2.625 V	2.375 V	16	1	2.375 V	2.625 V	125 °C	-40 °C
Analog Devices AD7988-1BRMZ-RL7	100k	DSP SPI	1:1	10-MSOP 10-TFSOP	SAR	Pseudo-Differential	External	S/H-ADC	Surface Mount	1	10-MSOP	2.625 V	2.375 V	16	1	2.375 V	2.625 V	125 °C	-40 °C	3 mm	0.118 in

Catalog

16-Bit Lower Power PulSAR ADCs in MSOP/LFCSP

Key Features

• High performancePseudo differential analog input range 0 V to VREFwith VREFfrom 2.5 V to 5.0 VThroughput: 500 kSPS/100 kSPS options Zero latency architecture16-bit resolution with no missing codesINL: ±0.6 LSB typical, ±1.25 LSB maximumDynamic range: 92 dB, VREF= 5 VSNR: 91.5 dB at fIN= 10 kHz, VREF= 5 VTHD: −114 dB at fIN= 10 kHz, VREF= 5 VSINAD: 91 dB at fIN= 10 kHz, VREF= 5 V

• Pseudo differential analog input range 0 V to VREFwith VREFfrom 2.5 V to 5.0 V

• Throughput: 500 kSPS/100 kSPS options Zero latency architecture

• 16-bit resolution with no missing codes

• INL: ±0.6 LSB typical, ±1.25 LSB maximum

• Dynamic range: 92 dB, VREF= 5 V

• SNR: 91.5 dB at fIN= 10 kHz, VREF= 5 V

• THD: −114 dB at fIN= 10 kHz, VREF= 5 V

• SINAD: 91 dB at fIN= 10 kHz, VREF= 5 V

• Low power dissipationSingle-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interfaceAD7988-1: 400 μW at 100 kSPS (VDD only)700 μW at 100 kSPS (total)AD7988-5: 2 mW at 500 kSPS (VDD only)3.5 mW at 500 kSPS (total)70 μW at 10 kSPS (total)

• Single-supply 2.5 V operation with 1.8 V/2.5 V/3 V/5 V logic interface

• AD7988-1: 400 μW at 100 kSPS (VDD only)700 μW at 100 kSPS (total)

• 700 μW at 100 kSPS (total)

• AD7988-5: 2 mW at 500 kSPS (VDD only)3.5 mW at 500 kSPS (total)

• 3.5 mW at 500 kSPS (total)

• 70 μW at 10 kSPS (total)

• Proprietary SPI-/QSPI™-/MICROWIRE™-/DSP-compatible serial interface

• 10-lead MSOP, 10-lead 3 mm × 3 mm LFCSP

• Wide operating temperature range: −40°C to +125°C

Description

TheAD7988-1/AD7988-5 are 16-bit, successive approximation, analog-to-digital converters (ADC) that operate from a single power supply, VDD. The AD7988-1 offers a 100 kSPS throughput, and the AD7988-5 offers a 500 kSPS throughput. They are low power, 16-bit sampling ADCs with a versatile serial interface port. On the CNV rising edge, they sample an analog input, IN+, between 0 V to VREFwith respect to a ground sense, IN−. The reference voltage, REF, is applied externally and can be set independent of the supply voltage, VDD.The SPI-compatible serial interface also features the ability to daisy-chain several ADCs on a single 3-wire bus using the SDI input. It is compatible with 1.8 V, 2.5 V, 3 V, or 5 V logic using the separate supply, VIO.The AD7988-1/AD7988-5 generics are housed in a 10-lead MSOP or a 10-lead LFCSP with operation specified from −40°C to +125°C.ApplicationsAutomated test equipmentData acquisition systemsMedical instrumentsMachine automation