ADA4922-1 High Voltage, Differential 18-Bit ADC Driver _ BDTIC a Leading Distributor in China

ADA4922-1 High Voltage, Differential 18-Bit ADC Driver

The ADA4922-1 is a differential driver for 16-bit to 18-bit analog-to-digital converters (ADCs) that have differential input ranges up to ±20 V. Configured as an easy-to-use, single-ended-to-differential amplifier, the ADA4922-1 requires no external components to drive ADCs. The ADA4922-1 provides essential benefits such as low distortion and high SNR that are required for driving ADCs with resolutions up to 18 bits.

With a wide supply voltage range (5 V to 26 V), high input impedance, and fixed differential gain of 2, the ADA4922-1 is designed to drive ADCs found to in a variety of applications, including industrial instrumentation.

The ADA4922-1 is manufactured on Analog Devices, Inc., proprietary, second-generation XFCB process that enables the amplifier to achieve excellent noise and distortion performance on high supply voltages.

The ADA4922-1 is available in an 8-lead 3 mm × 3 mm LFCSP as well as an 8-lead SOIC package. Both packages are equipped with an exposed paddle for more efficient heat transfer. The ADA4922-1 is rated to work over the extended industrial temperature range, −40°C to +85°C.

Applications

Features and Benefits

Single-ended-to-differential conversion

Low distortion (VO, dm = 40 V p-p)

−99 dBc HD at 100 kHz

−99 dBc HD at 100 kHz

Low differential output referred noise: 12 nV/√Hz

High input impedance: 11 MΩ

Fixed gain of 2

No external gain components required

No external gain components required

Low output-referred offset voltage: 1.1 mV maximum

Low input bias current: 3.5 μA maximum

Wide supply range

5 V to 26 V
Can produce differential output signals in excess of 40 V p-p

5 V to 26 V

Can produce differential output signals in excess of 40 V p-p

High speed

38 MHz, −3 dB bandwidth at 0.2 V p-p differential output

38 MHz, −3 dB bandwidth at 0.2 V p-p differential output

Fast settling time

200 ns to 0.01% for 12 V step on ±5 V supplies

200 ns to 0.01% for 12 V step on ±5 V supplies

Disable feature

Available in space-saving, thermally enhanced packages

8-lead, 3 mm × 3 mm LFCSP
8-lead SOIC

8-lead, 3 mm × 3 mm LFCSP

8-lead SOIC

Low supply current: IS = 10 mA on ±12 V supplies

Amplifiers

Aerospace and Defense

Solutions

SPICE Models

ADA4922-1 SPICE Macro Model .CIR

Data Sheets

Document	note
ADA4922-1: High Voltage, Differential 18-Bit ADC Driver Data Sheet (Rev. A)	PDF 418 kB

User Guides

Document	note
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages	PDF 263 kB

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
ADA4922-1ACPZ-R2 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 250	-40 to 85C	4.52	4.52	Y
ADA4922-1ACPZ-RL7 Production	8 ld LFCSP (3x3mm 1.74x1.45mm EP)	REEL 1500	-40 to 85C	0	3.63	Y
ADA4922-1ARDZ Production	8 ld SOIC-EP	OTH 98	-40 to 85C	3.93	3.63	Y
ADA4922-1ARDZ-RL Last Time Buy	8 ld SOIC-EP	REEL 2500	-40 to 85C	0	3.63	Y

Evaluation Boards

Part Number	Description	Price	RoHS
EVAL-FDA-1CPZ-16	Evaluation Bare Board for 16 Lead LFCSP	18.25	Y
EVAL-FDA-1RMZ-8	Evaluation Bare Board for 8 Lead MSOP	18.25	Y
EVAL-FDA-1RZ-8	Evaluation Bare Board for 8 Lead SOIC	18.25	Y
FDA-FILTER-CPZ	Evaluation Board Filter for LFCSP	18.25	Y