The ADA4941-1 is a low power, low noise differential driver for analog-to-digital converters (ADCs) up to 18 bits in systems that are sensitive to power. The ADA4941-1 is configured in an easy-to-use, single-ended-to-differential configuration and requires no external components for a gain of 2 configuration. A resistive feedback network can be added to achieve gains greater than 2. The ADA4941-1 provides essential benefits, such as low distortion and high SNR that are required for driving high resolution ADCs.
With a wide input voltage range (0 V to 3.9 V on a single 5 V supply), rail-to-rail output, high input impedance, and a user-adjustable gain, the ADA4941-1 is designed to drive single-supply ADCs with differential inputs found in a variety of low power applications, including battery-operated devices and singlesupply data acquisition systems.
The ADA4941-1 is ideal for driving the 16-bit and 18-bit PulSAR® ADCs, such as the AD7687, AD7690, and AD7691. The ADA4941-1 is manufactured on Analog Devices, Inc., proprietary, second-generation, eXtra fast complementary bipolar (XFCB) process, which enables the amplifier to achieve 18-bit performance on low supply currents.
The ADA4941-1 is available in a small 8-lead LFCSP as well as a standard 8-lead SOIC and is rated to work over the extended industrial temperature range, −40°C to +125°C.
Applications
Features and Benefits
| AmplifiersSPICE Models |
Document | note |
ADA4941-1: Single-Supply, Differential, 18-Bit ADC Driver Data Sheet (Rev. D) | PDF 651.88 K |
Document | note |
UG-474: Evaluation Board for Differential Amplifiers Offered in 8-Lead SOIC Packages | PDF 263 kB |
Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
---|---|---|---|---|---|---|
ADA4941-1YCPZ-R2 Production | 8 ld LFCSP (3x3mm 1.74x1.45mm EP) | REEL 250 | -40 to 125C | 3.27 | 3.27 | Y |
ADA4941-1YCPZ-R7 Production | 8 ld LFCSP (3x3mm 1.74x1.45mm EP) | REEL 1500 | -40 to 125C | 0 | 2.42 | Y |
ADA4941-1YCPZ-RL Production | 8 ld LFCSP (3x3mm 1.74x1.45mm EP) | REEL 5000 | -40 to 125C | 0 | 2.42 | Y |
ADA4941-1YRZ Production | 8 ld SOIC | OTH 98 | -40 to 125C | 2.84 | 2.42 | Y |
ADA4941-1YRZ-R7 Production | 8 ld SOIC | REEL 1000 | -40 to 125C | 0 | 2.42 | Y |
ADA4941-1YRZ-RL Production | 8 ld SOIC | REEL 2500 | -40 to 125C | 0 | 2.42 | Y |
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 |