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ADI ADA4940-2ACPZ-R7RoHS

Manufacturer
ADI
MPN
ADA4940-2ACPZ-R7
LCSC Part #
C515889
Packaging
LFCSP-24(4x4)
Customer #
Key Attributes
Ultra-low Power, Low Distortion Fully Differential ADC Driver
Datasheetpdf iconADI ADA4940-2ACPZ-R7
In-Stock: 48
48 In stock, ships now
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QtyUnit PriceTotal Amount
1+$ 10.5148$ 9.9891$ 9.99
10+$ 9.3138$ 8.8482$ 88.48
30+$ 7.1816$ 6.8226$ 204.68
100+$ 6.5689$ 6.2405$ 624.05
Standard Packaging1500/Full Reel
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Products Specifications

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TypeDescription
CategoryIntegrated Circuits (ICs)/Linear/Amplifiers/Special Purpose Amplifiers
ManufacturerADI
PackagingLFCSP-24(4x4)
Settling time34ns
Noise density(eN)3.9nV/√Hz
Output TypeDifferential
FeaturesSingle-ended to differential conversion;Enable/shutdown function;Adjustable output common-mode voltage
Single Supply3V~7V
Gain Bandwidth Product260MHz
Input Offset Voltage Drift(Vos TC)1.2uV/℃
Vos - Input Offset Voltage350uV
Maximum Power Supply Range (Vdd-Vss)7V
Quiescent Current1.25mA
Input Offset Current(Ios)500nA
Output Current46mA
Ib - Input Bias Current1.1uA
Common Mode Rejection Ratio (CMRR)119dB
Slew Rate95V/us
Rail to RailRail-to-rail output
Number of Channels2
Operating Temperature-40℃~+125℃
Power Supply Rejection Ratio (PSRR)90dB
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Additional Information

TypeDetails
Minimum1
Multiple1
Standard Packaging1500
Sales UnitPiece

Introduction

AI Translation

The ADA4940-1/ADA4940-2 are low noise, low distortion, ultralow power fully differential amplifiers ideally suited for driving low power, high resolution, high performance SAR and Σ-Δ ADCs with resolutions up to 16 bits from DC to 1 MHz, with a quiescent current of only 1.25 mA. The adjustable output common-mode level allows the ADA4940-1/ADA4940-2 to match the input common-mode voltage of multiple ADCs. An internal common-mode feedback loop provides excellent output balance and suppresses even-order harmonic distortion products. For the ADA4940-1/ADA4940-2, differential gain configuration is easily achieved using a simple external feedback network of four resistors, which determines the closed-loop gain of the amplifier. The ADA4940-1/ADA4940-2 are fabricated on a SiGe complementary bipolar process, enabling extremely low distortion levels with an input voltage noise of only 3.9 nV/√Hz. Low DC offset and excellent dynamic performance make the ADA4940-1/ADA4940-2 particularly suitable for a wide range of data acquisition and signal processing applications. The ADA4940-1 is available in lead-free, 3 mm × 3 mm, 16-lead LFCSP and 8-lead SOIC packages. The ADA4940-2 is available in a 4 mm × 4 mm, 24-lead lead-free LFCSP package. The pin configuration is optimized to facilitate PCB layout and routing while minimizing distortion. The ADA4940-1/ADA4940-2 are rated for an operating temperature range of −40°C to +125°C.

Features

AI Translation
  • Small signal bandwidth: 260 MHz
  • Ultra-low power consumption: 1.25 mA
  • Extremely low harmonic distortion: −122 dB THD (50 MHz), −96 dB THD (1 MHz)
  • Low input voltage noise: 3.9 nV/√Hz
  • Offset voltage: 0.35 mV (maximum)
  • Differential output
  • 0.7% settling time: 34 ns
  • Rail-to-rail output: -Vs + 0.1 V to +Vs - 0.1 V
  • Adjustable output common-mode voltage
  • Flexible supply: 3 V to 7 V (LFCSP)
  • Disable pin for power reduction
  • ADA4940-1 available in LFCSP and SOIC packages

Applications

AI Translation
  • Low-power PulSAR/SAR ADC driver
  • Single-ended to differential conversion
  • Differential buffer
  • Line driver
  • Medical imaging
  • Industrial process control
  • Portable electronics