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ADA4691-2ACBZ-R7

Analog Devices · Operational Amplifier · WLCSP-9(1.2x1.2)

ADA4691-2ACBZ-R7 from Analog Devices, in a WLCSP-9(1.2x1.2). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
A1 OUT B output Amplifier B output, rail-to-rail, with short-circuit current of ±15 mA at 2.7 V and ±55 mA at 5 V.
B1 -IN B input Amplifier B inverting input, with input voltage range of -0.3 V to +1.6 V at 2.7 V supply and -0.3 V to +3.9 V at 5 V supply.
C1 +IN B input Amplifier B non-inverting input, with input voltage range of -0.3 V to +1.6 V at 2.7 V supply and -0.3 V to +3.9 V at 5 V supply.
A2 V+ power_in Positive supply, 2.7 V to 5 V single supply or ±1.35 V to ±2.5 V dual supply, with 6 V absolute maximum supply voltage.
B2 SD A/B input Shutdown input for both amplifiers, where logic high enables (VIH min 1.6 V at 2.7 V, 2.0 V at 5 V) and logic low powers down (VIL max 0.5 V at 2.7 V, 0.8 V at 5 V), with rise/fall times of 50 µs maximum.
C2 V- power_in Negative supply or ground, with the shutdown input threshold referenced about 1.2 V above this pin at 5 V operation.
A3 OUT A output Amplifier A output, rail-to-rail, with short-circuit current of ±15 mA at 2.7 V and ±55 mA at 5 V.
B3 -IN A input Amplifier A inverting input, with input voltage range of -0.3 V to +1.6 V at 2.7 V supply and -0.3 V to +3.9 V at 5 V supply.
C3 +IN A input Amplifier A non-inverting input, with input voltage range of -0.3 V to +1.6 V at 2.7 V supply and -0.3 V to +3.9 V at 5 V supply.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package WLCSP-9(1.2x1.2)
Category Operational Amplifier/Comparator
Pins 9

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Offset Voltage VOS 0.5 2.5 mV VCM = −0.3 V to +1.6 V 3
Offset Voltage Dual (ADA469x-2) VOS 3.5 mV VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C 3
Offset Voltage Drift ΔVOS/ΔT 1 4 µV/°C −40°C < TA < +125°C 3
Input Bias Current IB 0.5 5 pA 3
Input Bias Current IB 360 pA −40°C < TA < +125°C 3
Input Offset Current IOS 1 8 pA 3
Input Offset Current IOS 225 pA −40°C < TA < +125°C 3
Input Voltage Range -0.3 1.6 V −40°C < TA < +125°C 3
Common-Mode Rejection Ratio CMRR 70 90 dB VCM = −0.3 V to +1.6 V 3
Common-Mode Rejection Ratio CMRR 62 dB VCM = −0.1 V to +1.6 V; −40°C < TA < +125°C 3
Large Signal Voltage Gain AVO 90 100 dB Load resistance (RL) = 2 kΩ, output voltage (VOUT) = 0.5 V to 2.2 V 3
Large Signal Voltage Gain AVO 80 dB −40°C < TA < +85°C 3
Large Signal Voltage Gain AVO 63 dB −40°C < TA < +125°C 3
Large Signal Voltage Gain RL=600 Ω AVO 85 95 dB RL = 600 Ω, VOUT = 0.5 V to 2.2 V 3
Logic High Voltage (Enabled) VIH 1.6 V −40°C < TA < +125°C 3
Logic Low Voltage (Power-Down) VIL 0.5 V −40°C < TA < +125°C 3
Output Voltage High VOH 2.65 2.67 V RL = 2 kΩ to VCM 3
Output Voltage High VOH 2.6 V −40°C < TA < +125°C 3
Output Voltage High RL=600 Ω VOH 2.55 2.59 V RL = 600 Ω to VCM 3
Output Voltage High RL=600 Ω VOH 2.5 V −40°C < TA < +125°C 3
Output Voltage Low VOL 24 33 mV RL = 2 kΩ to VCM 3
Output Voltage Low VOL 43 mV −40°C < TA < +125°C 3
Output Voltage Low RL=600 Ω VOL 78 103 mV RL = 600 Ω to VCM 3
Output Voltage Low RL=600 Ω VOL 138 mV −40°C < TA < +125°C 3
Short-Circuit Current ISC -15 15 mA VOUT = VSY or GND 3
Power Supply Rejection Ratio PSRR 80 90 dB VSY = 2.7 V to 5.5 V 3
Power Supply Rejection Ratio PSRR 75 dB −40°C < TA < +125°C 3
Supply Current Per Amplifier ISY 165 200 µA VOUT = VSY/2 3
Supply Current Per Amplifier ISY 240 µA −40°C < TA < +125°C 3
Supply Current Shutdown Mode ISD 10 nA All amplifiers shut down, VSD = VSS 3
Offset Voltage VOS 0.5 2.5 mV VCM = −0.3 V to +3.9 V 4
Offset Voltage Dual (ADA469x-2) VOS 3.5 mV VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C 4
Input Bias Current IB 0.5 5 pA 4
Input Bias Current IB 360 pA −40°C < TA < +125°C 4
Input Offset Current IOS 1 8 pA 4
Input Offset Current IOS 260 pA −40°C < TA < +125°C 4
Input Voltage Range -0.3 3.9 V −40°C < TA < +125°C 4
Common-Mode Rejection Ratio CMRR 75 98 dB VCM = −0.3 V to +3.9 V 4
Common-Mode Rejection Ratio CMRR 68 dB VCM = −0.1 V to +3.9 V; −40°C < TA < +125°C 4
Large Signal Voltage Gain AVO 95 110 dB RL = 2 kΩ, VOUT = 0.5 V to 4.5 V, VCM = 0 V 4
Large Signal Voltage Gain AVO 70 dB −40°C < TA < +125°C 4
Large Signal Voltage Gain RL=600 Ω AVO 90 100 dB RL = 600 Ω, VOUT = 0.5 V to 4.5 V, VCM = 0 V 4
Logic High Voltage (Enabled) VIH 2 V −40°C < TA < +125°C 4
Logic Low Voltage (Power-Down) VIL 0.8 V −40°C < TA < +125°C 4
Output Voltage High VOH 4.95 4.97 V RL = 2 kΩ to VCM 5
Output Voltage High VOH 4.9 V −40°C ≤ TA ≤ +125°C 5
Output Voltage High RL=600 Ω VOH 4.85 4.88 V RL = 600 Ω to VCM 5
Output Voltage Low VOL 30 40 mV RL = 2 kΩ to VCM 5
Output Voltage Low VOL 55 mV −40°C ≤ TA ≤ +125°C 5
Output Voltage Low RL=600 Ω VOL 100 128 mV RL = 600 Ω to VCM 5
Supply Current Per Amplifier ISY 180 225 µA VOUT = VSY/2 5
Supply Current Per Amplifier ISY 275 µA −40°C ≤ TA ≤ +125°C 5
Short-Circuit Limit ISC -55 55 mA VOUT = VSY or GND 5
Supply Voltage 6 V 6
Input Current -10 10 mA Input pins; limit input current to 10 mA or less when input exceeds supply rail by 0.3 V 6
Shutdown Pin Rise/Fall Times 50 µs 6
Operating Temperature Range -40 125 °C 6
Thermal Resistance Junction-to-Ambient, 9-Ball WLCSP (CB-9-3) θJA 77 °C/W Device soldered in circuit board, standard 4-layer board 6

CAD (KiCad official)

  • Symbol: ADA4691-2ACBZ-R7
  • Footprint: Package_CSP:WLCSP-9_1.21x1.22mm_Layout3x3_P0.4mm
  • 3D model: WLCSP-9(1.2x1.2) (KiCad packages3D, STEP)
  • 3D model files: ada4691-2acbz-r7-etched.step / ada4691-2acbz-r7-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ada4691-2acbz-r7.step / ada4691-2acbz-r7.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (19 pp, sha256 5b8f04cfa977727b, retrieved 2026-11-10, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF