JAJSOE0A May 2022 – August 2022 OPA3S2859
PRODUCTION DATA
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NAME | NO. | ||
COM_A | 23 | I | Photodiode input – Channel A |
COM_B | 8 | I | Photodiode input – Channel B |
FB_A0 | 20 | I | Feedback connection to Channel A – TIA Gain Resistor (Low gain, optimized for gain in < 10 kΩ range) |
FB_A1 | 21 | I |
Feedback connection to Channel A – TIA Gain Resistor |
FB_A2 | 22 | I | Feedback connection to Channel A – TIA Gain Resistor (High gain, optimized for gain in > 100 kΩ range) |
FB_B0 | 11 | I | Feedback connection to Channel B – TIA Gain Resistor (Low gain, optimized for gain in < 10 kΩ range) |
FB_B1 | 10 | I |
Feedback connection to Channel B – TIA Gain Resistor |
FB_B2 | 9 | I | Feedback connection to Channel B – TIA Gain Resistor (High gain, optimized for gain in > 100 kΩ range) |
INA- | 24 | I | Negative (inverting) input for amplifier A |
INA+ | 1 | I | Positive (noninverting) input for amplifier A |
INB- | 7 | I | Negative (inverting) input for amplifier B |
INB+ | 6 | I | Positive (noninverting) input for amplifier B |
LTCH_A | 3 | I |
Latch control input for Channel A. LTCH_A =
logic high (default) = transparent mode, gain setting changes
based on SEL0 and SEL1 pins are reflected at the output. |
LTCH_B | 4 | I |
Latch control input for Channel B. LTCH_B =
logic high (default) = transparent mode, gain setting changes
based on SEL0 and SEL1 pins are reflected at the output. |
PD | 15 | I | Power down pin. PD = logic high (default) = normal operation, PD = logic low = power down mode. |
SEL0 | 5 | I | TIA gain selection. SEL0 = logic high (default). See Table 5-2 for details. |
SEL1 | 2 | I | TIA gain selection. SEL1 = logic high (default). See Table 5-2 for details. |
VOUT_A | 19 | O | Output of amplifier A |
VOUT_B | 12 | O | Output of amplifier B |
VS- | 13, 18 | I | Negative (lowest) power supply |
VS+ | 14, 16, 17 | I | Positive (highest) power supply |
Thermal pad | — | Connect the thermal pad to the most negative power supply (pin 13 and 18) of the device under test (DUT). |
SEL1 | SEL0 | Gain |
---|---|---|
LOW | HIGH | Low Gain, optimized for gain in < 10 kΩ range |
LOW | LOW | Mid Gain, optimized for gain in 10 kΩ – 100 kΩ range |
HIGH | LOW | High Gain, optimized for gain in > 100 kΩ range |
HIGH (Default) | HIGH (Default) | External Gain. All internal switches open |