# Ultralow Noise Precision High Speed Op Amps DICE/DWF Specification (RH1028M/RH1128M)

## General Information

️· Manufacturer: Linear Technology Corporation
️· Datasheet Revision: LT 0908
️· Contact Information: 1630 McCarthy Blvd., Milpitas, CA 95035-7417; (408) 432-1900; www.linear.com

## Pad Function and Physical Dimensions

️· Dimensions: 114mils × 81mils
️· Backside: Substrate metal, Alloyed gold layer
️· Backside Potential: Connected to V–
️· Pad Identification: V, OS TRIM, –IN, +IN, V [–], OVER-COMP, OUT, V [+]
️· Die Cross Reference:
- RH1028MW / RH1028MW → RH1028 DICE / RH1028 DWF
- RH1128MW / RH1128MW → RH1128 DICE / RH1128 DWF
️· X = 0 for LT1028B, 1 for LT1128B

## Electrical Characteristics (VS = ±15V, TA = 25°C, VCM = 0V, unless otherwise noted)

️· Input Offset Voltage (VOS): 300 μV (measured ~0.5 seconds after power application)
️· Input Offset Current (IOS): 150 nA
️· Input Bias Current (IB): ±400 nA
️· Input Voltage Range (VIN): ±11 V
️· Common Mode Rejection Ratio (CMRR): 110 dB
️· Power Supply Rejection Ratio (PSRR): 110 dB
️· Large Scale Voltage Gain (AVOL):
- RL ≥ 2k, VO = ±10V: 5 V/μV
- RL ≥ 1k, VO = ±10V: 3.5 V/μV
- RL ≥ 600Ω, VO = ±10V: 2 V/μV
️· Maximum Output Voltage Swing:
- RL ≥ 2k: ±12 V
- RL ≥ 600Ω: ±10.5 V
️· Slew Rate (SR):
- RH1028 (AVCL = –1): 11 V/μs
- RH1128 (AVCL = –1): 4.5 V/μs
️· Supply Current (IS): 10.5 mA

## Notes and Cautions

️· Dice performance differs from packaged units due to packaging and assembly influences.
️· Consult factory for dice performance and lot qualification information.
️· Datasheet subject to change; consult factory for current revision.
️· DWF = DICE in wafer form.